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    XiO

    Computational Data Tables

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    Contact Information

    Computat ional Data Tables

    ii Document Name: XiO_TRN_CLARKSON_DATA_B.pdf

    ManufacturerJapan

    1145 Corporate Lake Drive

    Suite 100 St. Louis, Missouri 63132

    USA

    http://www.cmsrtp.com

    Phone: 1-314-993-0003

    Toll Free: 1-800-878-4267

    FAX: 1-314-993-0075Email: [email protected]

    Customer Support: North, Central and South America

    Phone: 1-800-878-4CMS (4267)

    Email: [email protected]

    CMS, Japan, K.K.

    Nagatacho Bldg. 2-4-3, Nagata-cho,

    Chiyoda-ku, Tokyo 100-0014

    Japan

    Phone: 81-3-3580-7100

    FAX: 81-3-3580-7120

    Email: [email protected] Support: Japan

    Phone: +81-3-3556-5391

    Email: [email protected]

    European Union Asia

    CMS GmbH

    Heinrich-von-Stephan Str. 5 b

    79100 Freiburg

    Germany

    Phone: +49-761-88188-0

    Toll Free: +800-4000-5000 (regionally limited)

    FAX: +49-761-88188-11

    Free FAX: +800-4000-5001 (regionally limited)

    Email: [email protected]

    Customer Support: Europe, Middle East and AfricaPhone: +49-761-88188-0

    Email: [email protected]

    European Union Authorized Representative

    Paul Shane Bennetts

    M Devices Group

    Marlborough House, Riding Street

    Southport PR8 1EW UK

    Phone: (0) 1704 544 944

    CMS Worldwide Corp.

    25th Floor, Suntime International Mansion

    #450 Fushan Road

    Pudong, Shanghai 200122

    P.R. China

    Phone: +86-215058-1041

    FAX: +86-215058-1045

    Email: [email protected]

    Customer Support: China

    Phone: +86-215058-1041Email: [email protected]

    Customer Support: Asia, Australia and New Zealand

    CMS Worldwide Corp

    Suite 15 International Business Centre

    Australian Technology Park

    Eveleigh, Sydney NSW 1430

    Australia

    Phone: 61-2-9209-4507

    FAX: 61-2-9209-4154

    Email: [email protected]

    Revision History

    Revision Date Changes

    XiO_TRN_CLARKSON_DATA_B 04/17/2007 Update template and logo; add revision history

    Copyright 2007 by Computerized Medical Systems, Inc. All rights reserved.

    Performance characteristics given in this manual are for reference only and are not intended as guaranteed specifications.

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    iii

    Tabl e of Cont ent s

    Computati onal Data Tables for Machine ID Photon1 . . . . 1

    Machine Geometry Data........... .......... ......... .......... ......... .......... .. 3

    Wedge Data ......... .......... ......... .......... .......... ......... .......... ......... 4

    Irregular Field Parameter Summary .... .... .... .... .... .... .... .... .... .... .... .. 6

    Fanline Ratios..... ......... .......... .......... ......... .......... .......... ......... . 7

    Tissue Air Rati o Computational Data .... .... .... .... .... .... .... .... .... .... .... . 9

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    Table of Contents

    Computat ional Data Tables

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    1

    Comput at i onal Dat a Tables for Machine ID Phot on1 The tables included in this document are used in the sample manual calculation

    discussed as part of the Clarkson algorithm (document name: Dose Calculation -

    Clarkson).

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    XIO Demo-only data Version XIO - Release 1.0.0

    Apr 21 1994 08:13:37 Doc: 001940321.081308.000

    Machine Geomet r y Dat a

    Machine ID: photon1

    Description: 6 MV X-Rays Demo Machine

    Machine validation status: Validated

    Most recent validation date: Feb 04 1994

    Geometry last modified date: Dec 17 1993

    GENERAL MACHINE PARAMETERSModality: photon

    Energy (MV): 6.00

    Reference depth (cm): 1.5

    Machine reference distance (cm): 100.0

    Min width/length (cm): 0.1/0.1

    Max width/length (cm): 40.0/40.0

    Available setups, SSD: yes

    SAD: yes

    Rotational: yes

    Asymmetric: yes

    SSD Min/Max limits (cm): 70.0/200.0

    GANTRY PARAMETERS

    Angle at vertical down (deg): 180

    Increasing angle direction: CW

    To min/To max limits (deg): 180/190

    Arc direction BOTH

    COLLIMATOR PARAMETERS

    Source/collimator dist (cm): 49.5

    Nominal collimator angle (deg): 180

    Increasing Angle direction: CW

    Source/blocking tray dist (cm): 61.6

    Min/Max block tray dist (cm): 61.6/62.6

    Blocking tray factor: 1.000Asym Min width/length position (cm): -10.0/-10.0

    COUCH PARAMETERS

    Nominal couch angle (deg): 180

    Increasing angle direction: CW

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    XIO Demo-only data Page 1 of 2

    Apr 21 1994 08:54:24 Version XIO - Release 1.0.0

    Doc: 001940321.085420.000

    Wedge Dat a

    Machine ID: photon1

    Description: 6 MV X-Rays Demo Machine

    Machine validation status: Validated

    Most recent validation date: Feb 04 1994

    Wedge ID: manualcalc

    Wedge description: wedge for manual calc

    Last modified date: Feb 04 1994

    Wedge type: fixed

    GEOMETRY

    Source-to-wedge distance (cm): 50.0

    Maximum field width (cm): 25.0

    Maximum field length (cm): 25.0

    ORIENTATION

    Heel positioned along: Length

    Heel coordinates located: Positive

    DOSIMETRY

    Linear attenuation coefficient (1/cm): 0.7500

    Wedge factors on central ray at reference depth 1.5 (cm)

    Field(cm) Wedge factor------------ ------------

    4H4 0.45010H10 0.47015H15 0.48025H25 0.490

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    XIO Demo-only data Page 2 of 2

    Apr 21 1994 08:54:24 Version XIO - Release 1.0.0

    Doc: 001940321.085420.000

    Machine ID: photon1Description: 6 MV X-Rays Demo MachineMachine validation status: ValidatedMost recent validation date: Feb 04 1994Wedge ID: manualcalcWedge description: wedge for manual calc

    Last modified date: Feb 04 1994Wedge type: fixed

    Wedge Coordinates

    Pnt# x(cm) y(cm) Pnt# x(cm) y(cm) Pnt# x(cm)y(cm) Pnt# x(cm) y(cm)---- ----- ----- ---- ----- ----- ---- ---------- ---- ----- -----1 12.0 0.0 3 12.0 2.0 5 12.0 0.02 12.0 0.0 4 0.0 1.0 6 12.0 0.0

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    XIO Demo-only data Version XIO - Release 1.0.0

    Apr 21 1994 08:55:48 Doc: 001940321.085543.000

    Irr egular Fiel d Par amet er Summar y

    Machine ID: photon1

    Description: 6 MV X-Rays Demo Machine

    Machine validation status: Validated

    Most recent validation date: Feb 04 1994

    Last modified date: Dec 17 1993

    Modality: photon

    Energy (MV): 6.00

    Machine reference dist (cm): 100.0

    Reference depth (cm): 1.5

    MACHINE PARAMETERS

    Source diameter (cm): 0.20

    Source-to-collimator dist (cm): 49.5

    Blocking tray factor: 1.000

    COLLIMATOR CONSTANTS

    Collimator edge AL.: 0.20

    Collimator edge TRAN.: 0.01

    BLOCKING CONSTANTS

    Block edge AL.: 0.15

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    XIO Demo-only data Page 61 of 108

    Apr 21 1994 08:26:14 Version XIO - Release 1.0.0Doc: 001940321.082602.000

    Fanline Ratios

    Machine ID: photon1

    Description: 6 MV X-Rays Demo Machine

    Machine validation status: Validated

    Most recent validation date: Feb 04 1994

    OCR description: 6 MV X-Rays OCRs

    OCR source-to-skin dist (cm): 100.0

    Last generated date: Dec 17 1993

    Modality: photon

    Energy (MV): 6.00

    Machine reference dist (cm): 100.0

    Reference depth (cm): 1.5

    Fanline Ratios

    Depth(cm) 0.219 0.226 0.233 0.240 0.247 0.255 0.262 0.269 0.276 0.283

    --------- ----- ----- ----- ----- ----- ----- ----- ----- -----0.0 1.059 1.058 1.061 1.064 1.063 1.057 1.059 1.059 1.060 1.0620.3 1.059 1.058 1.061 1.064 1.063 1.057 1.059 1.059 1.060 1.0620.6 1.056 1.055 1.058 1.060 1.060 1.054 1.056 1.056 1.057 1.0590.9 1.047 1.046 1.048 1.049 1.049 1.046 1.047 1.047 1.048 1.0491.2 1.039 1.036 1.038 1.039 1.039 1.038 1.038 1.038 1.039 1.0391.5 1.030 1.027 1.028 1.028 1.028 1.029 1.029 1.029 1.029 1.0291.8 1.030 1.027 1.028 1.028 1.028 1.029 1.029 1.029 1.029 1.0292.1 1.030 1.028 1.028 1.028 1.028 1.029 1.029 1.029 1.029 1.0302.4 1.030 1.029 1.029 1.027 1.028 1.029 1.029 1.029 1.029 1.0303.0 1.030 1.030 1.030 1.027 1.028 1.029 1.030 1.030 1.029 1.0323.6 1.027 1.028 1.028 1.026 1.027 1.027 1.028 1.028 1.027 1.0294.2 1.025 1.025 1.026 1.025 1.025 1.024 1.026 1.026 1.025 1.026

    4.8 1.022 1.023 1.023 1.024 1.023 1.022 1.024 1.024 1.023 1.0235.4 1.021 1.021 1.022 1.023 1.022 1.021 1.022 1.023 1.021 1.0226.0 1.020 1.021 1.021 1.022 1.021 1.020 1.021 1.021 1.020 1.0216.6 1.019 1.020 1.020 1.021 1.021 1.019 1.020 1.020 1.019 1.0197.2 1.019 1.019 1.019 1.020 1.020 1.018 1.018 1.018 1.018 1.0187.8 1.018 1.018 1.018 1.019 1.019 1.017 1.017 1.017 1.017 1.0178.4 1.017 1.018 1.017 1.018 1.018 1.017 1.016 1.016 1.015 1.0169.0 1.016 1.017 1.016 1.017 1.017 1.016 1.015 1.014 1.014 1.0159.6 1.015 1.016 1.015 1.016 1.016 1.015 1.013 1.013 1.013 1.01310.2 1.015 1.015 1.015 1.015 1.016 1.014 1.013 1.012 1.012 1.01310.8 1.015 1.015 1.014 1.015 1.015 1.014 1.012 1.012 1.012 1.01211.4 1.015 1.015 1.014 1.014 1.015 1.013 1.012 1.011 1.011 1.01112.0 1.015 1.015 1.014 1.014 1.014 1.013 1.011 1.011 1.011 1.01112.6 1.014 1.015 1.014 1.013 1.013 1.012 1.011 1.010 1.010 1.01013.2 1.014 1.014 1.014 1.013 1.013 1.012 1.010 1.010 1.010 1.00913.8 1.014 1.014 1.014 1.013 1.012 1.011 1.010 1.010 1.010 1.00914.4 1.014 1.014 1.014 1.013 1.011 1.011 1.010 1.010 1.009 1.00815.0 1.014 1.013 1.014 1.012 1.011 1.010 1.009 1.009 1.009 1.00715.6 1.013 1.013 1.013 1.011 1.010 1.009 1.008 1.008 1.008 1.006

    16.2 1.012 1.012 1.012 1.010 1.009 1.008 1.007 1.007 1.006 1.00516.8 1.011 1.011 1.011 1.009 1.008 1.008 1.006 1.005 1.005 1.00417.4 1.010 1.010 1.010 1.008 1.007 1.007 1.005 1.004 1.004 1.00318.0 1.009 1.009 1.009 1.007 1.007 1.006 1.004 1.003 1.003 1.00218.6 1.008 1.008 1.008 1.006 1.006 1.005 1.002 1.002 1.002 1.00019.2 1.007 1.008 1.008 1.005 1.005 1.004 1.001 1.000 1.000 0.99919.8 1.006 1.007 1.007 1.004 1.004 1.003 1.000 0.999 0.999 0.99820.4 1.005 1.006 1.006 1.004 1.003 1.002 0.999 0.999 0.999 0.99721.0 1.005 1.006 1.005 1.003 1.003 1.002 0.999 0.999 0.999 0.99721.6 1.005 1.005 1.005 1.003 1.002 1.002 0.999 0.999 0.998 0.99622.2 1.005 1.005 1.004 1.003 1.001 1.002 0.998 0.999 0.998 0.995

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    XIO Demo-only data Page 63 of 108

    Apr 21 1994 08:26:14 Version XIO - Release 1.0.0

    Doc: 001940321.082602.000

    Machine ID: photon1

    Description: 6 MV X-Rays Demo Machine

    Machine validation status: Validated

    Most recent validation date: Feb 04 1994

    OCR description: 6 MV X-Rays OCRs

    OCR source-to-skin dist (cm): 100.0

    Last generated date: Dec 17 1993

    Modality: photon

    Energy (MV): 6.00

    Machine reference dist (cm): 100.0

    Reference depth (cm): 1.5

    Fanline Ratios

    Depth(cm) 0.290 0.297 0.304 0.311 0.318 0.325 0.332 0.339 0.346 0.354--------- ----- ----- ----- ----- ----- ----- ----- ----- -----0.0 1.066 1.070 1.070 1.067 1.066 1.069 1.072 1.074 1.073 1.0710.3 1.066 1.070 1.070 1.067 1.066 1.069 1.072 1.074 1.073 1.0710.6 1.062 1.066 1.066 1.064 1.062 1.065 1.068 1.070 1.069 1.0670.9 1.051 1.054 1.054 1.053 1.052 1.054 1.056 1.058 1.057 1.0551.2 1.039 1.042 1.043 1.042 1.042 1.043 1.044 1.046 1.044 1.0431.5 1.028 1.030 1.032 1.031 1.031 1.032 1.033 1.033 1.032 1.0321.8 1.029 1.030 1.032 1.031 1.031 1.033 1.033 1.033 1.032 1.0322.1 1.029 1.030 1.032 1.031 1.031 1.033 1.033 1.033 1.032 1.0322.4 1.030 1.031 1.032 1.032 1.031 1.033 1.033 1.033 1.033 1.0323.0 1.031 1.031 1.032 1.033 1.032 1.033 1.033 1.033 1.033 1.0333.6 1.028 1.029 1.030 1.029 1.029 1.030 1.030 1.030 1.030 1.0304.2 1.026 1.026 1.027 1.026 1.026 1.027 1.027 1.027 1.026 1.0274.8 1.024 1.024 1.024 1.023 1.023 1.023 1.024 1.024 1.023 1.0245.4 1.022 1.022 1.022 1.021 1.021 1.021 1.022 1.022 1.021 1.0216.0 1.021 1.021 1.020 1.020 1.019 1.020 1.021 1.020 1.019 1.0206.6 1.020 1.020 1.019 1.018 1.018 1.018 1.019 1.019 1.018 1.0187.2 1.018 1.018 1.017 1.017 1.016 1.016 1.017 1.017 1.016 1.0167.8 1.017 1.017 1.015 1.015 1.015 1.015 1.016 1.015 1.015 1.0148.4 1.016 1.016 1.013 1.014 1.013 1.013 1.014 1.014 1.013 1.0129.0 1.015 1.014 1.011 1.012 1.012 1.012 1.013 1.012 1.011 1.0119.6 1.013 1.013 1.010 1.011 1.010 1.010 1.011 1.010 1.010 1.00910.2 1.012 1.012 1.008 1.010 1.009 1.009 1.010 1.009 1.008 1.00710.8 1.011 1.012 1.008 1.009 1.008 1.008 1.009 1.008 1.007 1.00711.4 1.011 1.011 1.008 1.009 1.008 1.007 1.008 1.007 1.006 1.00612.0 1.010 1.010 1.008 1.008 1.007 1.007 1.007 1.005 1.005 1.00512.6 1.009 1.010 1.008 1.008 1.007 1.006 1.006 1.004 1.003 1.00513.2 1.008 1.009 1.008 1.008 1.006 1.006 1.005 1.003 1.002 1.00413.8 1.008 1.009 1.008 1.007 1.006 1.005 1.004 1.002 1.001 1.00314.4 1.007 1.008 1.008 1.007 1.005 1.005 1.003 1.001 1.000 1.00315.0 1.006 1.008 1.008 1.006 1.005 1.004 1.003 1.000 0.998 1.00215.6 1.005 1.007 1.007 1.004 1.003 1.002 1.001 0.998 0.997 1.00016.2 1.004 1.005 1.005 1.003 1.002 1.001 1.000 0.997 0.996 0.99816.8 1.003 1.004 1.004 1.001 1.000 0.999 0.998 0.996 0.994 0.99617.4 1.002 1.003 1.003 1.000 0.999 0.998 0.997 0.995 0.993 0.99418.0 1.000 1.002 1.002 0.998 0.998 0.996 0.995 0.994 0.991 0.992

    18.6 0.999 1.000 1.001 0.997 0.996 0.995 0.994 0.993 0.990 0.98919.2 0.998 0.999 1.000 0.995 0.995 0.993 0.992 0.991 0.988 0.98719.8 0.997 0.998 0.998 0.993 0.993 0.992 0.991 0.990 0.987 0.98520.4 0.996 0.997 0.997 0.993 0.992 0.991 0.990 0.989 0.986 0.98421.0 0.996 0.995 0.996 0.992 0.991 0.990 0.989 0.988 0.985 0.98321.6 0.996 0.994 0.994 0.992 0.990 0.989 0.989 0.986 0.984 0.98222.2 0.995 0.993 0.993 0.991 0.989 0.988 0.988 0.985 0.983 0.980

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    XIO Demo-only data Page 1 of 36

    Apr 21 1994 08:15:13 Version XIO - Release 1.0.0

    Doc: 001940321.081507.000

    Tissue Air Ratio Computational Data

    Machine ID: photon1

    Description: 6 MV X-Rays Demo Machine

    Machine validation status: Validated

    Most recent validation date: Feb 04 1994

    TAR description: TAR generated from PDDs at 100cm

    Modality: photon

    Energy (MV): 6.00

    Machine reference dist (cm): 100.0

    Reference depth (cm): 1.5

    Last generated date: Dec 17 1993

    Generated from: raw PDDUsed PDDs at Source-to-skin dist (cm): 100.0

    Tissue Air Ratios Generated from PDD Data

    Depth(cm) 0x0 0.5x0.5 1x1 1.5x1.5 2x2 2.5x2.5---------------------------------------------------------------0.0 0.530 0.535 0.540 0.544 0.549 0.5540.1 0.531 0.536 0.541 0.546 0.551 0.5560.2 0.532 0.537 0.542 0.548 0.553 0.5580.3 0.548 0.552 0.557 0.561 0.566 0.5700.4 0.563 0.567 0.571 0.575 0.579 0.5830.5 0.636 0.638 0.641 0.643 0.646 0.6490.6 0.709 0.710 0.711 0.712 0.713 0.7140.7 0.788 0.788 0.789 0.790 0.791 0.792

    0.8 0.866 0.867 0.867 0.868 0.868 0.8690.9 0.900 0.901 0.902 0.902 0.903 0.9041.0 0.934 0.935 0.936 0.937 0.938 0.9391.1 0.957 0.957 0.958 0.959 0.960 0.9611.2 0.979 0.980 0.981 0.981 0.982 0.9831.3 0.984 0.985 0.987 0.988 0.989 0.9901.4 0.989 0.991 0.993 0.994 0.996 0.9981.5 1.000 1.002 1.003 1.005 1.006 1.0081.6 1.002 1.004 1.005 1.007 1.009 1.0101.7 1.004 1.006 1.008 1.010 1.011 1.0131.8 1.011 1.012 1.014 1.015 1.016 1.0181.9 1.018 1.019 1.020 1.020 1.021 1.0222.0 1.025 1.025 1.026 1.026 1.026 1.0272.1 1.017 1.018 1.018 1.019 1.020 1.0212.2 1.008 1.010 1.011 1.013 1.014 1.0162.3 1.007 1.008 1.010 1.011 1.013 1.0142.4 1.006 1.007 1.009 1.010 1.011 1.0122.5 1.001 1.002 1.004 1.005 1.007 1.0082.6 0.995 0.997 0.999 1.000 1.002 1.0042.7 0.989 0.991 0.993 0.995 0.997 0.9992.8 0.982 0.985 0.987 0.990 0.992 0.9952.9 0.980 0.983 0.985 0.987 0.989 0.9923.0 0.978 0.980 0.982 0.984 0.987 0.9893.1 0.974 0.976 0.978 0.981 0.983 0.9853.2 0.970 0.972 0.974 0.977 0.979 0.9813.3 0.964 0.967 0.969 0.972 0.975 0.9773.4 0.959 0.962 0.964 0.967 0.970 0.973

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    XIO Demo-only data Page 2 of 36

    Apr 21 1994 08:15:13 Version XIO - Release 1.0.0

    Doc: 001940321.081507.000

    Machine ID: photon1

    Description: 6 MV X-Rays Demo Machine

    Machine validation status: Validated

    Most recent validation date: Feb 04 1994

    TAR description: TAR generated from PDDs at 100cm

    Modality: photon

    Energy (MV): 6.00

    Machine reference dist (cm): 100.0

    Reference depth (cm): 1.5

    Last generated date: Dec 17 1993

    Generated from: raw PDD

    Used PDDs at Source-to-skin dist (cm):

    100.0

    Tissue Air Ratios Generated from PDD Data

    Depth(cm) 0x0 0.5x0.5 1x1 1.5x1.5 2x2 2.5x2.5---------------------------------------------------------------3.5 0.955 0.958 0.961 0.963 0.966 0.9693.6 0.951 0.953 0.956 0.959 0.962 0.9653.7 0.948 0.951 0.954 0.957 0.960 0.9623.8 0.946 0.949 0.951 0.954 0.957 0.9603.9 0.941 0.944 0.947 0.950 0.952 0.9554.0 0.936 0.939 0.942 0.945 0.948 0.9514.1 0.931 0.934 0.937 0.941 0.944 0.9474.2 0.926 0.929 0.933 0.936 0.939 0.9424.3 0.921 0.924 0.928 0.931 0.935 0.9384.4 0.916 0.919 0.923 0.926 0.930 0.9344.5 0.910 0.914 0.918 0.922 0.925 0.9294.6 0.906 0.910 0.914 0.918 0.921 0.9254.7 0.902 0.906 0.910 0.913 0.917 0.921

    4.8 0.897 0.901 0.905 0.909 0.913 0.9174.9 0.893 0.897 0.901 0.905 0.909 0.9135.0 0.888 0.893 0.897 0.901 0.905 0.9095.1 0.885 0.889 0.893 0.898 0.902 0.9065.2 0.882 0.886 0.890 0.894 0.898 0.9025.3 0.879 0.883 0.887 0.891 0.895 0.8995.4 0.876 0.880 0.884 0.888 0.892 0.8965.5 0.872 0.876 0.880 0.884 0.888 0.8925.6 0.866 0.870 0.874 0.878 0.883 0.8875.7 0.859 0.863 0.868 0.873 0.877 0.8825.8 0.852 0.857 0.862 0.867 0.872 0.8765.9 0.845 0.851 0.856 0.861 0.866 0.8716.0 0.839 0.844 0.850 0.855 0.860 0.8666.1 0.836 0.841 0.846 0.852 0.857 0.8636.2 0.833 0.838 0.844 0.849 0.854 0.8596.3 0.830 0.835 0.840 0.846 0.851 0.856

    6.4 0.827 0.832 0.837 0.843 0.848 0.8536.5 0.824 0.829 0.834 0.839 0.845 0.8506.6 0.819 0.824 0.830 0.835 0.840 0.8456.7 0.814 0.819 0.825 0.830 0.835 0.8416.8 0.809 0.814 0.820 0.825 0.831 0.8366.9 0.803 0.809 0.815 0.820 0.826 0.8327.0 0.798 0.804 0.810 0.816 0.821 0.8277.1 0.794 0.800 0.806 0.812 0.818 0.8247.2 0.790 0.796 0.802 0.808 0.814 0.8207.3 0.785 0.791 0.798 0.804 0.810 0.8167.4 0.781 0.787 0.794 0.800 0.806 0.812

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    Machine ID: photon1

    Description: 6 MV X-Rays Demo Machine

    Machine validation status: Validated

    Most recent validation date: Feb 04 1994

    TAR description: TAR generated from PDDs at 100cm

    Modality: photon

    Energy (MV): 6.00

    Machine reference dist (cm): 100.0

    Reference depth (cm): 1.5

    Last generated date: Dec 17 1993

    Generated from: raw PDD

    Used PDDs at Source-to-skin dist (cm): 100.0

    Tissue Air Ratios Generated from PDD Data

    Depth(cm) 0x0 0.5x0.5 1x1 1.5x1.5 2x2 2.5x2.5

    ---------------------------------------------------------------7.5 0.777 0.783 0.789 0.796 0.802 0.8097.6 0.774 0.780 0.786 0.793 0.799 0.8057.7 0.770 0.776 0.783 0.789 0.795 0.8027.8 0.767 0.773 0.779 0.786 0.792 0.7987.9 0.763 0.770 0.776 0.782 0.788 0.7958.0 0.760 0.766 0.772 0.779 0.785 0.7918.1 0.754 0.760 0.767 0.773 0.780 0.7868.2 0.747 0.754 0.761 0.768 0.775 0.7818.3 0.741 0.748 0.755 0.762 0.769 0.7768.4 0.735 0.742 0.749 0.757 0.764 0.7718.5 0.728 0.736 0.743 0.751 0.759 0.7668.6 0.728 0.735 0.742 0.750 0.757 0.7648.7 0.727 0.734 0.741 0.748 0.755 0.7638.8 0.726 0.733 0.740 0.747 0.754 0.7618.9 0.726 0.732 0.739 0.746 0.752 0.759

    9.0 0.725 0.731 0.738 0.744 0.751 0.7579.1 0.722 0.728 0.735 0.741 0.748 0.7549.2 0.719 0.725 0.732 0.738 0.744 0.7519.3 0.716 0.722 0.729 0.735 0.741 0.7489.4 0.713 0.719 0.726 0.732 0.738 0.7459.5 0.710 0.716 0.723 0.729 0.735 0.7419.6 0.706 0.713 0.719 0.725 0.732 0.7389.7 0.703 0.709 0.715 0.722 0.728 0.7349.8 0.699 0.705 0.712 0.718 0.725 0.7319.9 0.695 0.702 0.708 0.715 0.721 0.72810.0 0.691 0.698 0.704 0.711 0.717 0.72410.5 0.670 0.677 0.684 0.691 0.698 0.70511.0 0.646 0.653 0.661 0.669 0.676 0.68411.5 0.635 0.642 0.650 0.657 0.665 0.67212.0 0.622 0.629 0.637 0.644 0.651 0.65812.5 0.604 0.612 0.619 0.626 0.633 0.641

    13.0 0.588 0.595 0.603 0.610 0.618 0.62513.5 0.572 0.580 0.588 0.595 0.603 0.61014.0 0.566 0.573 0.580 0.587 0.594 0.60114.5 0.552 0.559 0.566 0.573 0.580 0.58715.0 0.536 0.543 0.550 0.557 0.564 0.57215.5 0.524 0.531 0.538 0.545 0.552 0.55916.0 0.511 0.518 0.525 0.532 0.539 0.54616.5 0.501 0.507 0.514 0.521 0.528 0.53517.0 0.490 0.496 0.503 0.510 0.516 0.523

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    Machine ID: photon1

    Description: 6 MV X-Rays Demo Machine

    Machine validation status: Validated

    Most recent validation date: Feb 04 1994

    TAR description: TAR generated from PDDs at 100cm

    Modality: photon

    Energy (MV): 6.00

    Machine reference dist (cm): 100.0

    Reference depth (cm): 1.5

    Last generated date: Dec 17 1993

    Generated from: raw PDD

    Used PDDs at Source-to-skin dist (cm):

    100.0

    Tissue Air Ratios Generated from PDD Data

    Depth(cm) 0x0 0.5x0.5 1x1 1.5x1.5 2x2 2.5x2.5---------------------------------------------------------------17.5 0.479 0.486 0.492 0.499 0.506 0.51218.0 0.468 0.475 0.481 0.488 0.494 0.50118.5 0.457 0.464 0.470 0.477 0.483 0.49019.0 0.446 0.452 0.459 0.465 0.472 0.47819.5 0.437 0.443 0.450 0.456 0.462 0.46920.0 0.428 0.434 0.440 0.446 0.453 0.45920.5 0.416 0.422 0.428 0.435 0.441 0.44721.0 0.404 0.410 0.416 0.423 0.429 0.43621.5 0.394 0.400 0.406 0.413 0.419 0.42522.0 0.384 0.390 0.396 0.403 0.409 0.41522.5 0.376 0.382 0.388 0.394 0.400 0.40623.0 0.368 0.373 0.379 0.385 0.391 0.39723.5 0.356 0.363 0.369 0.375 0.381 0.38724.0 0.345 0.352 0.358 0.364 0.371 0.37724.5 0.338 0.344 0.350 0.356 0.363 0.36925.0 0.331 0.336 0.343 0.348 0.354 0.36025.5 0.326 0.332 0.338 0.343 0.349 0.35526.0 0.322 0.328 0.333 0.338 0.344 0.34926.5 0.318 0.323 0.328 0.333 0.338 0.34327.0 0.313 0.318 0.323 0.328 0.333 0.33827.5 0.303 0.308 0.313 0.318 0.323 0.32828.0 0.293 0.298 0.303 0.308 0.313 0.31928.5 0.285 0.290 0.296 0.301 0.306 0.31129.0 0.278 0.283 0.288 0.293 0.298 0.30329.5 0.274 0.279 0.284 0.289 0.294 0.29930.0 0.270 0.275 0.280 0.285 0.289 0.294

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    Machine ID: photon1

    Description: 6 MV X-Rays Demo Machine

    Machine validation status: Validated

    Most recent validation date: Feb 04 1994

    TAR description: TAR generated from PDDs at 100cm

    Modality: photon

    Energy (MV): 6.00

    Machine reference dist (cm): 100.0

    Reference depth (cm): 1.5

    Last generated date: Dec 17 1993

    Generated from: raw PDD

    Used PDDs at Source-to-skin dist

    (cm): 100.0

    Tissue Air Ratios Generated from PDD Data

    Depth(cm) 6x6 6.5x6.5 7x7 7.5x7.5 8x8 8.5x8.5---------------------------------------------------------------4.0 0.976 0.979 0.981 0.983 0.985 0.9874.1 0.973 0.976 0.978 0.980 0.982 0.9844.2 0.969 0.972 0.975 0.977 0.979 0.9814.3 0.966 0.969 0.971 0.974 0.976 0.9784.4 0.962 0.966 0.968 0.970 0.973 0.9754.5 0.959 0.963 0.965 0.967 0.970 0.9724.6 0.956 0.959 0.962 0.965 0.967 0.9704.7 0.952 0.956 0.959 0.962 0.965 0.9674.8 0.949 0.953 0.956 0.959 0.962 0.9654.9 0.945 0.950 0.953 0.956 0.960 0.9635.0 0.942 0.946 0.950 0.953 0.957 0.9605.1 0.938 0.942 0.946 0.950 0.953 0.9575.2 0.934 0.939 0.942 0.946 0.950 0.953

    5.3 0.931 0.935 0.939 0.943 0.946 0.9505.4 0.927 0.932 0.935 0.939 0.943 0.9475.5 0.923 0.928 0.932 0.935 0.939 0.9435.6 0.920 0.925 0.928 0.932 0.936 0.9395.7 0.917 0.922 0.925 0.929 0.932 0.9365.8 0.914 0.919 0.922 0.925 0.929 0.9325.9 0.910 0.915 0.919 0.922 0.925 0.9286.0 0.907 0.912 0.915 0.918 0.922 0.9246.1 0.903 0.909 0.912 0.915 0.919 0.9226.2 0.899 0.905 0.909 0.912 0.916 0.9196.3 0.896 0.901 0.905 0.909 0.913 0.9176.4 0.892 0.897 0.901 0.906 0.910 0.9146.5 0.888 0.893 0.898 0.902 0.907 0.9116.6 0.885 0.891 0.895 0.899 0.904 0.9086.7 0.882 0.887 0.892 0.896 0.900 0.9046.8 0.878 0.884 0.888 0.893 0.897 0.901

    6.9 0.875 0.881 0.885 0.889 0.893 0.8977.0 0.872 0.878 0.882 0.886 0.890 0.8947.1 0.869 0.875 0.879 0.883 0.887 0.8907.2 0.866 0.872 0.876 0.879 0.883 0.8877.3 0.863 0.869 0.873 0.876 0.880 0.8837.4 0.860 0.866 0.870 0.873 0.877 0.8807.5 0.857 0.863 0.867 0.870 0.873 0.8767.6 0.853 0.860 0.863 0.867 0.870 0.8737.7 0.849 0.856 0.860 0.863 0.867 0.8707.8 0.846 0.853 0.856 0.860 0.864 0.8677.9 0.842 0.849 0.853 0.857 0.860 0.864

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    Machine ID: photon1

    Description: 6 MV X-Rays Demo Machine

    Machine validation status: Validated

    Most recent validation date: Feb 04 1994

    TAR description: TAR generated from PDDs at 100cm

    Modality: photon

    Energy (MV): 6.00

    Machine reference dist (cm): 100.0

    Reference depth (cm): 1.5

    Last generated date: Dec 17 1993

    Generated from: raw PDD

    Used PDDs at Source-to-skin dist

    (cm): 100.0

    Tissue Air Ratios Generated from PDD Data

    Depth(cm) 6x6 6.5x6.5 7x7 7.5x7.5 8x8 8.5x8.5---------------------------------------------------------------8.0 0.839 0.845 0.849 0.853 0.857 0.8618.1 0.835 0.843 0.847 0.850 0.854 0.8588.2 0.832 0.840 0.844 0.848 0.851 0.8558.3 0.829 0.837 0.841 0.845 0.849 0.8538.4 0.826 0.834 0.838 0.842 0.846 0.8508.5 0.823 0.831 0.835 0.839 0.843 0.8478.6 0.819 0.827 0.831 0.836 0.840 0.8448.7 0.816 0.824 0.828 0.832 0.836 0.8408.8 0.812 0.820 0.824 0.829 0.833 0.8378.9 0.808 0.816 0.821 0.825 0.830 0.8349.0 0.805 0.812 0.817 0.822 0.826 0.8319.1 0.802 0.809 0.814 0.819 0.823 0.8289.2 0.798 0.805 0.811 0.816 0.820 0.825

    9.3 0.795 0.802 0.807 0.812 0.817 0.8229.4 0.792 0.799 0.804 0.809 0.814 0.8199.5 0.788 0.795 0.801 0.806 0.811 0.8169.6 0.785 0.792 0.798 0.803 0.808 0.8139.7 0.782 0.789 0.795 0.800 0.805 0.8109.8 0.779 0.786 0.792 0.797 0.802 0.8079.9 0.776 0.783 0.789 0.794 0.799 0.80410.0 0.772 0.780 0.785 0.791 0.796 0.80110.5 0.757 0.765 0.771 0.776 0.780 0.78511.0 0.741 0.749 0.755 0.760 0.765 0.77011.5 0.726 0.735 0.740 0.745 0.749 0.75312.0 0.711 0.719 0.725 0.730 0.735 0.74012.5 0.694 0.702 0.709 0.714 0.719 0.72513.0 0.681 0.689 0.696 0.700 0.704 0.70913.5 0.666 0.674 0.681 0.686 0.691 0.69514.0 0.652 0.660 0.667 0.673 0.679 0.684

    14.5 0.637 0.645 0.652 0.657 0.663 0.66815.0 0.625 0.632 0.640 0.645 0.650 0.65515.5 0.611 0.619 0.626 0.632 0.637 0.64316.0 0.597 0.605 0.613 0.618 0.624 0.62916.5 0.585 0.592 0.600 0.605 0.610 0.61617.0 0.572 0.579 0.587 0.592 0.597 0.60217.5 0.561 0.568 0.575 0.580 0.585 0.59018.0 0.549 0.556 0.563 0.569 0.574 0.57918.5 0.537 0.544 0.551 0.557 0.562 0.56719.0 0.525 0.532 0.539 0.544 0.549 0.55419.5 0.514 0.521 0.528 0.534 0.538 0.543

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    Machine ID: photon1

    Description: 6 MV X-Rays Demo Machine

    Machine validation status: Validated

    Most recent validation date: Feb 04 1994

    TAR description: TAR generated from PDDs at 100cm

    Modality: photon

    Energy (MV): 6.00

    Machine reference dist (cm): 100.0

    Reference depth (cm): 1.5

    Last generated date: Dec 17 1993

    Generated from: raw PDD

    Used PDDs at Source-to-skin dist

    (cm): 100.0

    Tissue Air Ratios Generated from PDD Data

    Depth(cm) 6x6 6.5x6.5 7x7 7.5x7.5 8x8 8.5x8.5---------------------------------------------------------------20.0 0.504 0.510 0.517 0.523 0.527 0.53220.5 0.493 0.500 0.507 0.512 0.517 0.52121.0 0.482 0.489 0.496 0.502 0.506 0.51121.5 0.471 0.478 0.485 0.491 0.495 0.50022.0 0.460 0.467 0.474 0.480 0.484 0.48922.5 0.450 0.457 0.464 0.470 0.474 0.47923.0 0.440 0.447 0.453 0.459 0.464 0.46923.5 0.432 0.438 0.445 0.451 0.456 0.46024.0 0.423 0.430 0.437 0.443 0.447 0.45124.5 0.413 0.420 0.427 0.433 0.437 0.44225.0 0.404 0.410 0.417 0.423 0.427 0.43225.5 0.396 0.402 0.408 0.414 0.419 0.42326.0 0.388 0.394 0.400 0.406 0.410 0.414

    26.5 0.381 0.386 0.392 0.398 0.402 0.40627.0 0.373 0.378 0.384 0.389 0.393 0.39827.5 0.364 0.370 0.375 0.381 0.385 0.38928.0 0.356 0.361 0.367 0.373 0.377 0.38128.5 0.348 0.354 0.359 0.365 0.369 0.37329.0 0.340 0.346 0.352 0.357 0.362 0.36529.5 0.334 0.339 0.345 0.350 0.354 0.35830.0 0.327 0.333 0.338 0.343 0.347 0.351

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    Machine ID: photon1

    Description: 6 MV X-Rays Demo Machine

    Machine validation status: Validated

    Most recent validation date: Feb 04 1994

    TAR description: TAR generated from PDDs at 100cm

    Modality: photon

    Energy (MV): 6.00

    Machine reference dist (cm): 100.0

    Reference depth (cm): 1.5

    Last generated date: Dec 17 1993

    Generated from: raw PDD

    Used PDDs at Source-to-skin dist

    (cm): 100.0

    Tissue Air Ratios Generated from PDD Data

    Depth(cm) 9x9 9.5x9.5 10x10 10.5x10.5 11x11 11.5x11.5---------------------------------------------------------------0.0 0.616 0.620 0.624 0.628 0.632 0.6360.1 0.618 0.623 0.627 0.631 0.635 0.6390.2 0.621 0.626 0.630 0.634 0.638 0.6420.3 0.631 0.635 0.640 0.644 0.648 0.6520.4 0.641 0.645 0.649 0.654 0.658 0.6620.5 0.687 0.689 0.691 0.696 0.701 0.7070.6 0.734 0.734 0.733 0.738 0.744 0.7510.7 0.810 0.811 0.811 0.815 0.820 0.8240.8 0.887 0.888 0.889 0.892 0.895 0.8980.9 0.923 0.924 0.925 0.928 0.930 0.9331.0 0.959 0.960 0.962 0.964 0.966 0.9681.1 0.979 0.981 0.983 0.984 0.986 0.9881.2 0.999 1.002 1.004 1.005 1.006 1.007

    1.3 1.011 1.014 1.016 1.017 1.018 1.0191.4 1.023 1.026 1.028 1.029 1.030 1.0311.5 1.032 1.033 1.035 1.036 1.036 1.0371.6 1.034 1.036 1.038 1.039 1.039 1.0411.7 1.036 1.038 1.040 1.041 1.043 1.0441.8 1.038 1.039 1.041 1.043 1.044 1.0451.9 1.039 1.041 1.043 1.044 1.045 1.0462.0 1.040 1.042 1.044 1.045 1.046 1.0462.1 1.038 1.040 1.042 1.043 1.044 1.0452.2 1.036 1.038 1.040 1.041 1.043 1.0442.3 1.036 1.038 1.039 1.041 1.042 1.0432.4 1.035 1.037 1.039 1.040 1.041 1.0432.5 1.033 1.035 1.036 1.038 1.039 1.0402.6 1.030 1.032 1.034 1.035 1.036 1.0372.7 1.028 1.030 1.032 1.034 1.034 1.0352.8 1.025 1.028 1.030 1.032 1.033 1.033

    2.9 1.021 1.024 1.026 1.028 1.029 1.0303.0 1.017 1.020 1.022 1.024 1.026 1.0273.1 1.015 1.018 1.020 1.022 1.024 1.0253.2 1.013 1.016 1.019 1.021 1.021 1.0223.3 1.011 1.013 1.016 1.018 1.019 1.0193.4 1.008 1.011 1.014 1.015 1.016 1.0163.5 1.004 1.007 1.010 1.012 1.012 1.0133.6 1.001 1.003 1.006 1.008 1.009 1.0103.7 0.998 1.001 1.004 1.006 1.007 1.0083.8 0.996 0.999 1.001 1.004 1.005 1.0063.9 0.993 0.996 0.999 1.001 1.003 1.004

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    Machine ID: photon1

    Description: 6 MV X-Rays Demo Machine

    Machine validation status: Validated

    Most recent validation date: Feb 04 1994

    TAR description: TAR generated from PDDs at 100cm

    Modality: photon

    Energy (MV): 6.00

    Machine reference dist (cm): 100.0

    Reference depth (cm): 1.5

    Last generated date: Dec 17 1993

    Generated from: raw PDD

    Used PDDs at Source-to-skin dist

    (cm): 100.0

    Tissue Air Ratios Generated from PDD Data

    Depth(cm) 9x9 9.5x9.5 10x10 10.5x10.5 11x11 11.5x11.5---------------------------------------------------------------4.0 0.990 0.993 0.996 0.998 1.000 1.0024.1 0.987 0.990 0.993 0.996 0.997 0.9994.2 0.984 0.987 0.990 0.993 0.994 0.9964.3 0.981 0.984 0.988 0.990 0.991 0.9934.4 0.978 0.982 0.985 0.987 0.988 0.9904.5 0.975 0.979 0.982 0.985 0.986 0.9874.6 0.973 0.976 0.979 0.982 0.983 0.9844.7 0.971 0.974 0.977 0.980 0.981 0.9824.8 0.968 0.971 0.975 0.977 0.978 0.9794.9 0.966 0.969 0.972 0.975 0.976 0.9775.0 0.963 0.966 0.970 0.972 0.973 0.9745.1 0.960 0.963 0.966 0.969 0.970 0.9715.2 0.957 0.960 0.963 0.966 0.967 0.969

    5.3 0.953 0.956 0.960 0.962 0.964 0.9665.4 0.950 0.953 0.956 0.959 0.961 0.9635.5 0.946 0.950 0.953 0.956 0.958 0.9605.6 0.943 0.946 0.950 0.953 0.955 0.9575.7 0.939 0.943 0.946 0.950 0.952 0.9535.8 0.936 0.939 0.943 0.947 0.948 0.9505.9 0.932 0.936 0.940 0.943 0.945 0.9476.0 0.928 0.933 0.937 0.940 0.942 0.9436.1 0.926 0.929 0.933 0.937 0.939 0.9416.2 0.923 0.927 0.930 0.934 0.936 0.9386.3 0.920 0.924 0.927 0.930 0.933 0.9356.4 0.917 0.920 0.924 0.927 0.929 0.9326.5 0.914 0.917 0.920 0.923 0.926 0.9296.6 0.911 0.914 0.918 0.921 0.923 0.9266.7 0.908 0.911 0.915 0.918 0.921 0.9236.8 0.905 0.908 0.912 0.916 0.918 0.920

    6.9 0.901 0.905 0.909 0.913 0.915 0.9187.0 0.898 0.902 0.906 0.910 0.913 0.9157.1 0.894 0.898 0.902 0.906 0.909 0.9117.2 0.891 0.895 0.899 0.903 0.906 0.9087.3 0.887 0.891 0.895 0.899 0.902 0.9057.4 0.884 0.887 0.891 0.895 0.899 0.9027.5 0.880 0.884 0.888 0.891 0.895 0.8987.6 0.877 0.881 0.885 0.889 0.893 0.8967.7 0.874 0.879 0.883 0.887 0.891 0.8947.8 0.872 0.876 0.881 0.885 0.888 0.8917.9 0.869 0.873 0.878 0.883 0.886 0.889

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    Machine ID: photon1

    Description: 6 MV X-Rays Demo Machine

    Machine validation status: Validated

    Most recent validation date: Feb 04 1994

    TAR description: TAR generated from PDDs at 100cm

    Modality: photon

    Energy (MV): 6.00

    Machine reference dist (cm): 100.0

    Reference depth (cm): 1.5

    Last generated date: Dec 17 1993

    Generated from: raw PDD

    Used PDDs at Source-to-skin dist

    (cm): 100.0

    Tissue Air Ratios Generated from PDD Data

    Depth(cm) 9x9 9.5x9.5 10x10 10.5x10.5 11x11 11.5x11.5---------------------------------------------------------------8.0 0.866 0.871 0.876 0.881 0.884 0.8878.1 0.863 0.868 0.873 0.878 0.882 0.8848.2 0.860 0.865 0.870 0.875 0.879 0.8818.3 0.857 0.862 0.867 0.872 0.876 0.8788.4 0.854 0.859 0.864 0.869 0.873 0.8758.5 0.851 0.856 0.861 0.867 0.871 0.8728.6 0.848 0.853 0.858 0.863 0.868 0.8698.7 0.845 0.850 0.855 0.860 0.864 0.8668.8 0.842 0.847 0.852 0.857 0.862 0.8638.9 0.839 0.844 0.849 0.854 0.859 0.8609.0 0.836 0.841 0.846 0.851 0.855 0.8579.1 0.833 0.838 0.843 0.848 0.852 0.8549.2 0.830 0.835 0.840 0.845 0.849 0.851

    9.3 0.827 0.832 0.837 0.842 0.846 0.8489.4 0.824 0.829 0.834 0.839 0.843 0.8459.5 0.821 0.826 0.831 0.835 0.840 0.8429.6 0.818 0.823 0.827 0.832 0.836 0.8389.7 0.815 0.820 0.824 0.829 0.833 0.8359.8 0.812 0.817 0.821 0.825 0.830 0.8329.9 0.809 0.813 0.818 0.822 0.826 0.82810.0 0.806 0.810 0.814 0.819 0.823 0.82510.5 0.790 0.794 0.798 0.803 0.807 0.81011.0 0.775 0.779 0.784 0.789 0.793 0.79611.5 0.758 0.763 0.769 0.774 0.780 0.78312.0 0.745 0.750 0.755 0.761 0.766 0.76912.5 0.730 0.735 0.740 0.746 0.751 0.75513.0 0.713 0.718 0.724 0.729 0.734 0.73813.5 0.700 0.706 0.711 0.717 0.722 0.72714.0 0.690 0.695 0.699 0.704 0.708 0.712

    14.5 0.673 0.679 0.684 0.690 0.695 0.70015.0 0.661 0.666 0.671 0.676 0.681 0.68615.5 0.648 0.653 0.658 0.664 0.669 0.67416.0 0.635 0.641 0.646 0.651 0.656 0.66216.5 0.621 0.627 0.632 0.637 0.642 0.64817.0 0.607 0.612 0.618 0.623 0.628 0.63317.5 0.596 0.601 0.606 0.611 0.617 0.62218.0 0.584 0.589 0.594 0.599 0.605 0.61018.5 0.572 0.576 0.582 0.587 0.593 0.59819.0 0.559 0.564 0.569 0.575 0.581 0.58719.5 0.548 0.552 0.558 0.563 0.569 0.574

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    Apr 21 1994 08:15:13 Version XIO - Release 1.0.0

    Doc: 001940321.081507.000

    Machine ID: photon1

    Description: 6 MV X-Rays Demo Machine

    Machine validation status: Validated

    Most recent validation date: Feb 04 1994

    TAR description: TAR generated from PDDs at 100cm

    Modality: photon

    Energy (MV): 6.00

    Machine reference dist (cm): 100.0

    Reference depth (cm): 1.5

    Last generated date: Dec 17 1993

    Generated from: raw PDD

    Used PDDs at Source-to-skin dist

    (cm): 100.0

    Tissue Air Ratios Generated from PDD Data

    Depth(cm) 9x9 9.5x9.5 10x10 10.5x10.5 11x11 11.5x11.5---------------------------------------------------------------20.0 0.536 0.541 0.546 0.551 0.557 0.56220.5 0.526 0.531 0.536 0.541 0.546 0.55121.0 0.516 0.520 0.525 0.530 0.535 0.54021.5 0.505 0.510 0.515 0.520 0.525 0.53022.0 0.494 0.499 0.504 0.509 0.514 0.51922.5 0.484 0.489 0.494 0.499 0.504 0.50823.0 0.474 0.479 0.484 0.488 0.493 0.49823.5 0.465 0.469 0.474 0.479 0.484 0.48824.0 0.455 0.459 0.463 0.469 0.474 0.47924.5 0.446 0.450 0.454 0.459 0.464 0.46925.0 0.436 0.440 0.445 0.449 0.454 0.45925.5 0.428 0.432 0.436 0.441 0.445 0.45026.0 0.419 0.423 0.427 0.432 0.436 0.440

    26.5 0.410 0.414 0.419 0.423 0.428 0.43227.0 0.402 0.406 0.410 0.414 0.419 0.42327.5 0.393 0.397 0.401 0.405 0.410 0.41528.0 0.385 0.388 0.392 0.396 0.401 0.40628.5 0.377 0.381 0.384 0.388 0.393 0.39729.0 0.369 0.373 0.376 0.380 0.384 0.38929.5 0.362 0.366 0.369 0.373 0.377 0.38130.0 0.355 0.358 0.362 0.366 0.370 0.374

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    Apr 21 1994 08:15:13 Version XIO - Release 1.0.0

    Doc: 001940321.081507.000

    Machine ID: photon1

    Description: 6 MV X-Rays Demo Machine

    Machine validation status: Validated

    Most recent validation date: Feb 04 1994

    TAR description: TAR generated from PDDs at 100cm

    Modality: photon

    Energy (MV): 6.00

    Machine reference dist (cm): 100.0

    Reference depth (cm): 1.5

    Last generated date: Dec 17 1993

    Generated from: raw PDD

    Used PDDs at Source-to-skin dist

    (cm): 100.0

    Tissue Air Ratios Generated from PDD Data

    Depth(cm) 15x15 15.5x15.5 16x16 16.5x16.5 17x17 17.5x17.5---------------------------------------------------------------0.0 0.664 0.668 0.671 0.675 0.678 0.6820.1 0.667 0.670 0.674 0.677 0.681 0.6840.2 0.670 0.673 0.677 0.680 0.684 0.6870.3 0.679 0.682 0.686 0.689 0.693 0.6960.4 0.688 0.691 0.695 0.698 0.702 0.7050.5 0.721 0.724 0.726 0.729 0.732 0.7340.6 0.755 0.756 0.758 0.760 0.762 0.7640.7 0.830 0.831 0.832 0.833 0.834 0.8350.8 0.906 0.906 0.906 0.907 0.907 0.9070.9 0.942 0.943 0.943 0.944 0.945 0.9461.0 0.978 0.979 0.980 0.982 0.983 0.9841.1 0.998 0.999 1.000 1.002 1.003 1.0041.2 1.018 1.019 1.020 1.021 1.023 1.024

    1.3 1.029 1.030 1.031 1.033 1.034 1.0351.4 1.040 1.041 1.043 1.044 1.046 1.0471.5 1.045 1.046 1.048 1.049 1.051 1.0521.6 1.049 1.050 1.051 1.053 1.054 1.0551.7 1.053 1.054 1.055 1.056 1.058 1.0591.8 1.053 1.054 1.055 1.056 1.057 1.0591.9 1.052 1.053 1.055 1.056 1.057 1.0592.0 1.052 1.053 1.054 1.056 1.057 1.0592.1 1.051 1.052 1.053 1.055 1.056 1.0582.2 1.049 1.050 1.052 1.054 1.056 1.0572.3 1.049 1.050 1.051 1.053 1.054 1.0562.4 1.048 1.049 1.050 1.052 1.053 1.0552.5 1.045 1.046 1.047 1.049 1.051 1.0522.6 1.042 1.043 1.044 1.046 1.048 1.0502.7 1.041 1.042 1.044 1.045 1.047 1.0492.8 1.040 1.041 1.043 1.044 1.046 1.047

    2.9 1.038 1.039 1.041 1.042 1.044 1.0453.0 1.035 1.036 1.038 1.040 1.041 1.0433.1 1.033 1.034 1.036 1.037 1.039 1.0413.2 1.030 1.031 1.033 1.035 1.037 1.0393.3 1.027 1.028 1.030 1.031 1.033 1.0353.4 1.023 1.024 1.026 1.028 1.030 1.0313.5 1.021 1.022 1.024 1.026 1.028 1.0303.6 1.019 1.020 1.022 1.024 1.026 1.0283.7 1.017 1.018 1.020 1.022 1.024 1.0263.8 1.015 1.016 1.018 1.020 1.022 1.0243.9 1.012 1.013 1.014 1.016 1.018 1.020

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    Apr 21 1994 08:15:13 Version XIO - Release 1.0.0

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    Machine ID: photon1

    Description: 6 MV X-Rays Demo Machine

    Machine validation status: Validated

    Most recent validation date: Feb 04 1994

    TAR description: TAR generated from PDDs at 100cm

    Modality: photon

    Energy (MV): 6.00

    Machine reference dist (cm): 100.0

    Reference depth (cm): 1.5

    Last generated date: Dec 17 1993

    Generated from: raw PDD

    Used PDDs at Source-to-skin dist

    (cm): 100.0

    Tissue Air Ratios Generated from PDD Data

    Depth(cm) 15x15 15.5x15.5 16x16 16.5x16.5 17x17 17.5x17.5---------------------------------------------------------------4.0 1.008 1.008 1.010 1.013 1.015 1.0174.1 1.006 1.007 1.008 1.011 1.013 1.0154.2 1.004 1.005 1.007 1.009 1.011 1.0134.3 1.002 1.003 1.005 1.007 1.009 1.0114.4 1.000 1.001 1.003 1.005 1.007 1.0094.5 0.997 0.999 1.001 1.003 1.005 1.0074.6 0.995 0.996 0.998 1.000 1.002 1.0044.7 0.992 0.993 0.995 0.997 0.999 1.0014.8 0.989 0.990 0.992 0.994 0.996 0.9984.9 0.986 0.987 0.989 0.991 0.993 0.9955.0 0.983 0.984 0.986 0.988 0.990 0.9925.1 0.981 0.982 0.984 0.986 0.988 0.9905.2 0.979 0.980 0.982 0.984 0.986 0.988

    5.3 0.976 0.978 0.980 0.982 0.984 0.9865.4 0.974 0.976 0.977 0.979 0.982 0.9845.5 0.972 0.974 0.975 0.977 0.979 0.9815.6 0.969 0.971 0.973 0.975 0.977 0.9795.7 0.966 0.968 0.970 0.972 0.974 0.9765.8 0.963 0.965 0.967 0.969 0.971 0.9735.9 0.960 0.963 0.965 0.967 0.969 0.9716.0 0.957 0.960 0.962 0.964 0.966 0.9686.1 0.955 0.957 0.960 0.962 0.964 0.9666.2 0.953 0.955 0.957 0.960 0.961 0.9636.3 0.951 0.953 0.955 0.957 0.959 0.9616.4 0.948 0.951 0.953 0.955 0.957 0.9596.5 0.946 0.948 0.951 0.952 0.954 0.9566.6 0.943 0.945 0.948 0.950 0.951 0.9536.7 0.940 0.942 0.945 0.947 0.949 0.9516.8 0.937 0.939 0.942 0.944 0.946 0.948

    6.9 0.934 0.936 0.939 0.941 0.943 0.9457.0 0.931 0.933 0.936 0.938 0.940 0.9427.1 0.928 0.930 0.933 0.935 0.937 0.9397.2 0.925 0.927 0.930 0.932 0.934 0.9367.3 0.922 0.924 0.927 0.929 0.931 0.9337.4 0.919 0.921 0.924 0.926 0.928 0.9307.5 0.916 0.918 0.920 0.923 0.925 0.9277.6 0.914 0.916 0.918 0.920 0.922 0.9257.7 0.911 0.913 0.915 0.917 0.920 0.9227.8 0.908 0.910 0.912 0.915 0.917 0.9197.9 0.905 0.907 0.910 0.912 0.914 0.916

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    Apr 21 1994 08:15:13 Version XIO - Release 1.0.0

    Doc: 001940321.081507.000

    Machine ID: photon1

    Description: 6 MV X-Rays Demo Machine

    Machine validation status: Validated

    Most recent validation date: Feb 04 1994

    TAR description: TAR generated from PDDs at 100cm

    Modality: photon

    Energy (MV): 6.00

    Machine reference dist (cm): 100.0

    Reference depth (cm): 1.5

    Last generated date: Dec 17 1993

    Generated from: raw PDD

    Used PDDs at Source-to-skin dist

    (cm): 100.0

    Tissue Air Ratios Generated from PDD Data

    Depth(cm) 15x15 15.5x15.5 16x16 16.5x16.5 17x17 17.5x17.5---------------------------------------------------------------8.0 0.902 0.905 0.907 0.909 0.911 0.9148.1 0.899 0.902 0.904 0.906 0.909 0.9118.2 0.896 0.899 0.901 0.903 0.905 0.9088.3 0.893 0.896 0.898 0.900 0.903 0.9058.4 0.890 0.892 0.895 0.897 0.900 0.9028.5 0.887 0.890 0.892 0.894 0.897 0.8998.6 0.884 0.887 0.889 0.891 0.894 0.8968.7 0.882 0.884 0.886 0.889 0.891 0.8948.8 0.879 0.881 0.883 0.886 0.888 0.8918.9 0.876 0.878 0.881 0.883 0.886 0.8889.0 0.873 0.875 0.878 0.880 0.883 0.8869.1 0.870 0.873 0.876 0.878 0.881 0.8839.2 0.868 0.871 0.873 0.876 0.879 0.881

    9.3 0.865 0.868 0.871 0.874 0.877 0.8799.4 0.863 0.866 0.869 0.872 0.874 0.8779.5 0.860 0.864 0.867 0.870 0.872 0.8749.6 0.857 0.860 0.863 0.867 0.869 0.8719.7 0.854 0.857 0.860 0.863 0.865 0.8689.8 0.850 0.853 0.856 0.859 0.862 0.8649.9 0.847 0.850 0.853 0.856 0.858 0.86110.0 0.843 0.846 0.849 0.852 0.855 0.85710.5 0.830 0.833 0.835 0.838 0.841 0.84311.0 0.817 0.820 0.823 0.826 0.829 0.83111.5 0.802 0.805 0.809 0.812 0.815 0.81712.0 0.789 0.792 0.795 0.799 0.802 0.80412.5 0.773 0.777 0.780 0.784 0.787 0.79013.0 0.761 0.764 0.767 0.770 0.773 0.77613.5 0.748 0.752 0.755 0.759 0.763 0.76614.0 0.735 0.738 0.742 0.745 0.748 0.751

    14.5 0.721 0.725 0.729 0.733 0.736 0.73915.0 0.708 0.711 0.715 0.719 0.722 0.72615.5 0.694 0.698 0.702 0.706 0.709 0.71316.0 0.680 0.684 0.688 0.692 0.696 0.70016.5 0.669 0.672 0.676 0.680 0.683 0.68717.0 0.656 0.660 0.663 0.667 0.671 0.67417.5 0.644 0.648 0.652 0.656 0.659 0.66318.0 0.632 0.636 0.640 0.644 0.648 0.65218.5 0.620 0.624 0.628 0.632 0.637 0.64119.0 0.608 0.612 0.617 0.621 0.625 0.62919.5 0.597 0.601 0.605 0.609 0.613 0.617

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    Apr 21 1994 08:15:13 Version XIO - Release 1.0.0

    Doc: 001940321.081507.000

    Machine ID: photon1

    Description: 6 MV X-Rays Demo Machine

    Machine validation status: Validated

    Most recent validation date: Feb 04 1994

    TAR description: TAR generated from PDDs at 100cm

    Modality: photon

    Energy (MV): 6.00

    Machine reference dist (cm): 100.0

    Reference depth (cm): 1.5

    Last generated date: Dec 17 1993

    Generated from: raw PDD

    Used PDDs at Source-to-skin dist

    (cm): 100.0

    Tissue Air Ratios Generated from PDD Data

    Depth(cm) 15x15 15.5x15.5 16x16 16.5x16.5 17x17 17.5x17.5---------------------------------------------------------------20.0 0.585 0.589 0.593 0.597 0.601 0.60520.5 0.573 0.578 0.582 0.586 0.590 0.59421.0 0.562 0.566 0.570 0.574 0.578 0.58221.5 0.552 0.555 0.559 0.563 0.567 0.57122.0 0.541 0.545 0.549 0.552 0.556 0.56022.5 0.530 0.534 0.537 0.541 0.545 0.54923.0 0.518 0.522 0.526 0.530 0.534 0.53723.5 0.509 0.513 0.516 0.520 0.524 0.52824.0 0.499 0.503 0.507 0.511 0.515 0.51824.5 0.488 0.492 0.496 0.500 0.504 0.50825.0 0.478 0.482 0.486 0.490 0.494 0.49825.5 0.469 0.473 0.477 0.481 0.485 0.48926.0 0.461 0.464 0.468 0.472 0.476 0.480

    26.5 0.452 0.455 0.459 0.463 0.467 0.47027.0 0.443 0.446 0.449 0.453 0.457 0.46127.5 0.434 0.436 0.440 0.444 0.448 0.45228.0 0.424 0.427 0.431 0.435 0.439 0.44328.5 0.416 0.418 0.422 0.426 0.430 0.43429.0 0.407 0.408 0.412 0.417 0.421 0.42529.5 0.399 0.400 0.404 0.408 0.412 0.41630.0 0.391 0.393 0.396 0.400 0.403 0.407

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    Apr 21 1994 08:15:13 Version XIO - Release 1.0.0

    Doc: 001940321.081507.000

    Machine ID: photon1

    Description: 6 MV X-Rays Demo Machine

    Machine validation status: Validated

    Most recent validation date: Feb 04 1994

    TAR description: TAR generated from PDDs at 100cm

    Modality: photon

    Energy (MV): 6.00

    Machine reference dist (cm): 100.0

    Reference depth (cm): 1.5

    Last generated date: Dec 17 1993

    Generated from: raw PDD

    Used PDDs at Source-to-skin dist

    (cm): 100.0

    Tissue Air Ratios Generated from PDD Data

    Depth(cm) 18x18 18.5x18.5 19x19 19.5x19.5 20x20 20.5x20.5---------------------------------------------------------------0.0 0.685 0.688 0.692 0.696 0.699 0.7040.1 0.688 0.692 0.695 0.699 0.702 0.7070.2 0.691 0.695 0.698 0.702 0.705 0.7100.3 0.700 0.703 0.707 0.710 0.714 0.7190.4 0.709 0.712 0.716 0.719 0.723 0.7270.5 0.737 0.740 0.742 0.745 0.748 0.7520.6 0.766 0.767 0.769 0.771 0.773 0.7760.7 0.836 0.837 0.838 0.839 0.840 0.8420.8 0.907 0.907 0.907 0.907 0.907 0.9080.9 0.946 0.947 0.948 0.948 0.949 0.9501.0 0.986 0.987 0.988 0.990 0.991 0.9921.1 1.005 1.007 1.008 1.009 1.010 1.0111.2 1.025 1.026 1.027 1.028 1.030 1.030

    1.3 1.037 1.038 1.039 1.041 1.042 1.0431.4 1.048 1.050 1.051 1.053 1.054 1.0551.5 1.053 1.055 1.056 1.058 1.059 1.0601.6 1.056 1.058 1.059 1.060 1.061 1.0621.7 1.060 1.061 1.062 1.063 1.064 1.0651.8 1.060 1.061 1.062 1.064 1.065 1.0661.9 1.060 1.061 1.063 1.064 1.065 1.0662.0 1.060 1.062 1.063 1.065 1.066 1.0672.1 1.060 1.061 1.063 1.064 1.066 1.0672.2 1.059 1.061 1.062 1.064 1.066 1.0672.3 1.058 1.059 1.061 1.063 1.064 1.0652.4 1.056 1.058 1.059 1.061 1.062 1.0642.5 1.054 1.056 1.057 1.059 1.061 1.0622.6 1.052 1.054 1.055 1.057 1.059 1.0612.7 1.050 1.052 1.054 1.055 1.057 1.0582.8 1.049 1.050 1.052 1.053 1.055 1.056

    2.9 1.047 1.048 1.050 1.051 1.053 1.0543.0 1.044 1.046 1.048 1.049 1.051 1.0523.1 1.043 1.044 1.046 1.048 1.050 1.0513.2 1.041 1.043 1.044 1.046 1.048 1.0503.3 1.037 1.039 1.040 1.042 1.044 1.0463.4 1.033 1.035 1.036 1.038 1.040 1.0413.5 1.031 1.033 1.035 1.037 1.038 1.0403.6 1.029 1.031 1.033 1.035 1.037 1.0383.7 1.028 1.029 1.031 1.033 1.035 1.0373.8 1.026 1.028 1.029 1.031 1.033 1.0353.9 1.022 1.024 1.026 1.028 1.030 1.032

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    Apr 21 1994 08:15:13 Version XIO - Release 1.0.0

    Doc: 001940321.081507.000

    Machine ID: photon1

    Description: 6 MV X-Rays Demo Machine

    Machine validation status: Validated

    Most recent validation date: Feb 04 1994

    TAR description: TAR generated from PDDs at 100cm

    Modality: photon

    Energy (MV): 6.00

    Machine reference dist (cm): 100.0

    Reference depth (cm): 1.5

    Last generated date: Dec 17 1993

    Generated from: raw PDD

    Used PDDs at Source-to-skin dist

    (cm): 100.0

    Tissue Air Ratios Generated from PDD Data

    Depth(cm) 18x18 18.5x18.5 19x19 19.5x19.5 20x20 20.5x20.5---------------------------------------------------------------4.0 1.019 1.021 1.023 1.025 1.028 1.0304.1 1.017 1.019 1.021 1.023 1.025 1.0274.2 1.015 1.017 1.019 1.021 1.023 1.0254.3 1.013 1.015 1.017 1.019 1.021 1.0234.4 1.011 1.013 1.015 1.016 1.018 1.0204.5 1.009 1.010 1.012 1.014 1.016 1.0184.6 1.006 1.008 1.010 1.012 1.013 1.0154.7 1.003 1.005 1.007 1.009 1.011 1.0134.8 1.000 1.002 1.004 1.006 1.008 1.0104.9 0.997 0.999 1.001 1.003 1.005 1.0075.0 0.994 0.996 0.998 1.000 1.002 1.0045.1 0.992 0.994 0.996 0.998 1.000 1.0025.2 0.990 0.992 0.994 0.996 0.998 1.000

    5.3 0.988 0.990 0.992 0.994 0.996 0.9985.4 0.985 0.988 0.990 0.992 0.994 0.9965.5 0.983 0.985 0.987 0.989 0.992 0.9935.6 0.981 0.983 0.985 0.987 0.989 0.9915.7 0.978 0.980 0.982 0.984 0.986 0.9885.8 0.975 0.978 0.979 0.982 0.984 0.9855.9 0.973 0.975 0.977 0.979 0.981 0.9836.0 0.970 0.972 0.974 0.976 0.978 0.9806.1 0.968 0.970 0.972 0.974 0.976 0.9786.2 0.965 0.967 0.969 0.971 0.973 0.9756.3 0.963 0.965 0.967 0.969 0.970 0.9726.4 0.960 0.962 0.964 0.966 0.968 0.9706.5 0.958 0.960 0.962 0.963 0.965 0.9676.6 0.955 0.957 0.959 0.961 0.963 0.9656.7 0.953 0.955 0.956 0.958 0.960 0.9626.8 0.950 0.952 0.954 0.956 0.958 0.960

    6.9 0.947 0.949 0.951 0.953 0.955 0.9577.0 0.944 0.947 0.949 0.951 0.953 0.9557.1 0.942 0.944 0.946 0.948 0.950 0.9527.2 0.939 0.941 0.943 0.945 0.947 0.9507.3 0.936 0.938 0.940 0.942 0.945 0.9477.4 0.933 0.935 0.937 0.940 0.942 0.9447.5 0.930 0.932 0.934 0.937 0.939 0.9427.6 0.927 0.929 0.932 0.934 0.936 0.9397.7 0.924 0.927 0.929 0.931 0.934 0.9367.8 0.922 0.924 0.926 0.928 0.931 0.9337.9 0.919 0.921 0.923 0.926 0.928 0.930

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    Apr 21 1994 08:15:13 Version XIO - Release 1.0.0

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    Machine ID: photon1

    Description: 6 MV X-Rays Demo Machine

    Machine validation status: Validated

    Most recent validation date: Feb 04 1994

    TAR description: TAR generated from PDDs at 100cm

    Modality: photon

    Energy (MV): 6.00

    Machine reference dist (cm): 100.0

    Reference depth (cm): 1.5

    Last generated date: Dec 17 1993

    Generated from: raw PDD

    Used PDDs at Source-to-skin dist

    (cm): 100.0

    Tissue Air Ratios Generated from PDD Data

    Depth(cm) 18x18 18.5x18.5 19x19 19.5x19.5 20x20 20.5x20.5---------------------------------------------------------------8.0 0.916 0.918 0.920 0.923 0.925 0.9278.1 0.913 0.915 0.918 0.920 0.922 0.9258.2 0.910 0.913 0.915 0.917 0.920 0.9228.3 0.907 0.910 0.912 0.915 0.917 0.9198.4 0.905 0.907 0.909 0.912 0.914 0.9178.5 0.902 0.904 0.906 0.909 0.911 0.9148.6 0.899 0.901 0.904 0.906 0.909 0.9118.7 0.896 0.899 0.901 0.904 0.906 0.9098.8 0.893 0.896 0.899 0.901 0.904 0.9068.9 0.891 0.893 0.896 0.898 0.901 0.9039.0 0.888 0.891 0.893 0.896 0.898 0.9019.1 0.886 0.888 0.891 0.893 0.896 0.8989.2 0.883 0.886 0.888 0.891 0.893 0.895

    9.3 0.881 0.883 0.886 0.888 0.890 0.8939.4 0.879 0.881 0.883 0.886 0.888 0.8909.5 0.877 0.879 0.881 0.883 0.885 0.8879.6 0.873 0.876 0.878 0.880 0.882 0.8849.7 0.870 0.872 0.875 0.877 0.879 0.8829.8 0.867 0.869 0.871 0.874 0.876 0.8799.9 0.863 0.866 0.868 0.871 0.873 0.87610.0 0.860 0.862 0.865 0.868 0.870 0.87310.5 0.846 0.849 0.851 0.854 0.857 0.86011.0 0.833 0.836 0.838 0.840 0.842 0.84511.5 0.820 0.822 0.824 0.826 0.829 0.83112.0 0.807 0.810 0.812 0.815 0.817 0.82012.5 0.793 0.795 0.798 0.800 0.803 0.80613.0 0.779 0.781 0.784 0.787 0.789 0.79213.5 0.768 0.770 0.772 0.775 0.777 0.78014.0 0.753 0.756 0.758 0.761 0.763 0.765

    14.5 0.742 0.744 0.747 0.749 0.752 0.75415.0 0.728 0.731 0.733 0.736 0.739 0.74115.5 0.715 0.718 0.720 0.723 0.725 0.72716.0 0.702 0.704 0.706 0.709 0.711 0.71316.5 0.689 0.692 0.694 0.697 0.699 0.70117.0 0.677 0.679 0.682 0.684 0.687 0.68917.5 0.666 0.669 0.671 0.673 0.676 0.67818.0 0.655 0.657 0.660 0.662 0.664 0.66718.5 0.644 0.646 0.649 0.651 0.653 0.65519.0 0.633 0.635 0.637 0.639 0.641 0.64319.5 0.621 0.623 0.626 0.628 0.630 0.632

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    Apr 21 1994 08:15:13 Version XIO - Release 1.0.0

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    Machine ID: photon1

    Description: 6 MV X-Rays Demo Machine

    Machine validation status: Validated

    Most recent validation date: Feb 04 1994

    TAR description: TAR generated from PDDs at 100cm

    Modality: photon

    Energy (MV): 6.00

    Machine reference dist (cm): 100.0

    Reference depth (cm): 1.5

    Last generated date: Dec 17 1993

    Generated from: raw PDD

    Used PDDs at Source-to-skin dist

    (cm): 100.0

    Tissue Air Ratios Generated from PDD Data

    Depth(cm) 18x18 18.5x18.5 19x19 19.5x19.5 20x20 20.5x20.5------------------------------------------------------------------20.0 0.609 0.612 0.614 0.616 0.618 0.62020.5 0.598 0.601 0.603 0.605 0.607 0.60921.0 0.587 0.589 0.591 0.594 0.596 0.59821.5 0.575 0.578 0.580 0.583 0.585 0.58722.0 0.564 0.567 0.569 0.571 0.573 0.57622.5 0.553 0.556 0.558 0.560 0.562 0.56423.0 0.541 0.545 0.547 0.549 0.551 0.55323.5 0.532 0.536 0.538 0.540 0.542 0.54424.0 0.522 0.526 0.529 0.530 0.532 0.53424.5 0.512 0.516 0.519 0.521 0.522 0.52425.0 0.502 0.506 0.509 0.511 0.512 0.51425.5 0.493 0.497 0.500 0.502 0.503 0.50526.0 0.484 0.487 0.491 0.492 0.494 0.495

    26.5 0.474 0.478 0.482 0.483 0.485 0.48627.0 0.465 0.468 0.472 0.474 0.475 0.47727.5 0.456 0.460 0.463 0.466 0.467 0.46828.0 0.447 0.451 0.455 0.457 0.459 0.46028.5 0.438 0.442 0.446 0.449 0.450 0.45229.0 0.429 0.433 0.437 0.441 0.442 0.44329.5 0.420 0.424 0.428 0.431 0.433 0.43430.0 0.411 0.414 0.418 0.422 0.423 0.424

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    Apr 21 1994 08:15:13 Version XIO - Release 1.0.0

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    Machine ID: photon1

    Description: 6 MV X-Rays Demo Machine

    Machine validation status: Validated

    Most recent validation date: Feb 04 1994

    TAR description: TAR generated from PDDs at 100cm

    Modality: photon

    Energy (MV): 6.00

    Machine reference dist (cm): 100.0

    Reference depth (cm): 1.5

    Last generated date: Dec 17 1993

    Generated from: raw PDD

    Used PDDs at Source-to-skin dist

    (cm): 100.0

    Tissue Air Ratios Generated from PDD Data

    Depth(cm) 21x21 21.5x21.5 22x22 22.5x22.5 23x23 23.5x23.5------------------------------------------------------------------------0.0 0.710 0.715 0.721 0.726 0.732 0.7380.1 0.713 0.718 0.724 0.729 0.735 0.7400.2 0.716 0.721 0.726 0.732 0.737 0.7430.3 0.724 0.729 0.734 0.740 0.745 0.7500.4 0.732 0.738 0.743 0.748 0.753 0.7580.5 0.756 0.761 0.765 0.770 0.774 0.7790.6 0.780 0.784 0.788 0.791 0.795 0.7990.7 0.845 0.848 0.850 0.853 0.856 0.8590.8 0.910 0.912 0.913 0.915 0.917 0.9180.9 0.952 0.953 0.955 0.956 0.958 0.9601.0 0.994 0.995 0.997 0.998 0.999 1.0011.1 1.013 1.014 1.015 1.016 1.018 1.0191.2 1.031 1.033 1.034 1.035 1.036 1.037

    1.3 1.043 1.044 1.045 1.046 1.046 1.0471.4 1.055 1.056 1.056 1.057 1.057 1.0581.5 1.061 1.061 1.062 1.063 1.064 1.0651.6 1.063 1.064 1.065 1.066 1.066 1.0671.7 1.066 1.066 1.067 1.068 1.069 1.0701.8 1.066 1.067 1.068 1.069 1.070 1.0701.9 1.067 1.068 1.069 1.069 1.070 1.0712.0 1.068 1.068 1.069 1.070 1.070 1.0712.1 1.068 1.068 1.069 1.069 1.070 1.0712.2 1.068 1.068 1.069 1.069 1.070 1.0702.3 1.066 1.067 1.067 1.068 1.069 1.0692.4 1.064 1.065 1.066 1.067 1.067 1.0682.5 1.063 1.064 1.065 1.066 1.066 1.0672.6 1.061 1.062 1.063 1.064 1.065 1.0662.7 1.059 1.060 1.061 1.061 1.062 1.0632.8 1.056 1.057 1.058 1.058 1.059 1.059

    2.9 1.055 1.056 1.056 1.057 1.057 1.0583.0 1.053 1.054 1.055 1.055 1.056 1.0573.1 1.052 1.053 1.053 1.054 1.054 1.0553.2 1.051 1.051 1.052 1.052 1.053 1.0533.3 1.047 1.048 1.048 1.049 1.050 1.0513.4 1.043 1.044 1.045 1.046 1.048 1.0493.5 1.041 1.042 1.043 1.044 1.045 1.0463.6 1.039 1.040 1.041 1.042 1.043 1.0433.7 1.038 1.039 1.039 1.040 1.041 1.0423.8 1.036 1.037 1.038 1.039 1.039 1.0403.9 1.034 1.034 1.035 1.036 1.037 1.038

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    Apr 21 1994 08:15:13 Version XIO - Release 1.0.0

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    Machine ID: photon1

    Description: 6 MV X-Rays Demo Machine

    Machine validation status: Validated

    Most recent validation date: Feb 04 1994

    TAR description: TAR generated from PDDs at 100cm

    Modality: photon

    Energy (MV): 6.00

    Machine reference dist (cm): 100.0

    Reference depth (cm): 1.5

    Last generated date: Dec 17 1993

    Generated from: raw PDD

    Used PDDs at Source-to-skin dist

    (cm): 100.0

    Tissue Air Ratios Generated from PDD Data

    Depth(cm) 21x21 21.5x21.5 22x22 22.5x22.5 23x23 23.5x23.5---------------------------------------------------------------4.0 1.031 1.032 1.033 1.034 1.035 1.0364.1 1.029 1.030 1.031 1.031 1.032 1.0334.2 1.026 1.027 1.028 1.029 1.030 1.0314.3 1.024 1.025 1.026 1.027 1.028 1.0294.4 1.022 1.023 1.024 1.025 1.025 1.0264.5 1.019 1.020 1.021 1.022 1.023 1.0244.6 1.017 1.018 1.019 1.020 1.021 1.0224.7 1.014 1.015 1.016 1.017 1.018 1.0194.8 1.011 1.013 1.014 1.015 1.016 1.0174.9 1.009 1.010 1.011 1.012 1.013 1.0155.0 1.006 1.007 1.008 1.010 1.011 1.0125.1 1.004 1.005 1.006 1.008 1.009 1.0105.2 1.002 1.003 1.004 1.005 1.007 1.008

    5.3 1.000 1.001 1.002 1.003 1.005 1.0065.4 0.998 0.999 1.000 1.001 1.003 1.0045.5 0.995 0.997 0.998 0.999 1.000 1.0025.6 0.993 0.994 0.995 0.997 0.998 0.9995.7 0.990 0.991 0.993 0.994 0.995 0.9965.8 0.987 0.989 0.990 0.991 0.992 0.9945.9 0.985 0.986 0.987 0.988 0.990 0.9916.0 0.982 0.983 0.985 0.986 0.987 0.9886.1 0.979 0.981 0.982 0.983 0.985 0.9866.2 0.977 0.978 0.980 0.981 0.982 0.9846.3 0.974 0.976 0.977 0.978 0.980 0.9816.4 0.972 0.973 0.975 0.976 0.977 0.9796.5 0.969 0.970 0.972 0.973 0.975 0.9766.6 0.967 0.968 0.970 0.971 0.973 0.9746.7 0.964 0.966 0.967 0.969 0.970 0.9726.8 0.962 0.963 0.965 0.966 0.968 0.970

    6.9 0.959 0.961 0.963 0.964 0.966 0.9677.0 0.957 0.959 0.960 0.962 0.963 0.9657.1 0.954 0.956 0.958 0.959 0.961 0.9627.2 0.952 0.954 0.955 0.956 0.958 0.9597.3 0.949 0.951 0.952 0.954 0.955 0.9577.4 0.947 0.948 0.950 0.951 0.952 0.9547.5 0.944 0.946 0.947 0.948 0.950 0.9517.6 0.941 0.943 0.945 0.946 0.947 0.9497.7 0.938 0.940 0.942 0.943 0.945 0.9467.8 0.935 0.938 0.939 0.941 0.942 0.9447.9 0.933 0.935 0.936 0.938 0.940 0.942

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    Apr 21 1994 08:15:13 Version XIO - Release 1.0.0

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    Machine ID: photon1

    Description: 6 MV X-Rays Demo Machine

    Machine validation status: Validated

    Most recent validation date: Feb 04 1994

    TAR description: TAR generated from PDDs at 100cm

    Modality: photon

    Energy (MV): 6.00

    Machine reference dist (cm): 100.0

    Reference depth (cm): 1.5

    Last generated date: Dec 17 1993

    Generated from: raw PDD

    Used PDDs at Source-to-skin dist

    (cm): 100.0

    Tissue Air Ratios Generated from PDD Data

    Depth(cm) 21x21 21.5x21.5 22x22 22.5x22.5 23x23 23.5x23.5---------------------------------------------------------------8.0 0.930 0.932 0.934 0.936 0.937 0.9398.1 0.927 0.929 0.931 0.933 0.935 0.9378.2 0.924 0.927 0.928 0.930 0.932 0.9348.3 0.922 0.924 0.926 0.928 0.930 0.9328.4 0.919 0.922 0.923 0.925 0.927 0.9298.5 0.916 0.919 0.921 0.923 0.924 0.9268.6 0.914 0.916 0.918 0.920 0.922 0.9248.7 0.911 0.914 0.916 0.917 0.919 0.9218.8 0.909 0.911 0.913 0.915 0.916 0.9188.9 0.906 0.909 0.910 0.912 0.914 0.9159.0 0.903 0.906 0.908 0.909 0.911 0.9139.1 0.901 0.903 0.905 0.907 0.908 0.9109.2 0.898 0.900 0.902 0.904 0.905 0.907

    9.3 0.895 0.897 0.899 0.901 0.903 0.9059.4 0.892 0.895 0.896 0.898 0.900 0.9029.5 0.890 0.892 0.893 0.895 0.897 0.8999.6 0.887 0.889 0.891 0.893 0.895 0.8969.7 0.884 0.886 0.888 0.890 0.892 0.8949.8 0.881 0.883 0.886 0.887 0.889 0.8919.9 0.878 0.881 0.883 0.885 0.887 0.88910.0 0.875 0.878 0.880 0.882 0.884 0.88610.5 0.862 0.865 0.868 0.870 0.872 0.87411.0 0.847 0.849 0.851 0.854 0.856 0.85811.5 0.834 0.836 0.838 0.840 0.842 0.84512.0 0.822 0.825 0.827 0.830 0.832 0.83412.5 0.808 0.811 0.814 0.816 0.818 0.82113.0 0.795 0.798 0.800 0.803 0.805 0.80713.5 0.782 0.784 0.787 0.789 0.791 0.79414.0 0.768 0.770 0.773 0.775 0.778 0.780

    14.5 0.757 0.759 0.761 0.764 0.766 0.76915.0 0.744 0.746 0.749 0.752 0.754 0.75715.5 0.730 0.732 0.735 0.737 0.739 0.74216.0 0.716 0.718 0.720 0.723 0.725 0.72716.5 0.704 0.706 0.708 0.711 0.713 0.71517.0 0.691 0.694 0.696 0.699 0.701 0.70317.5 0.680 0.683 0.685 0.688 0.690 0.69218.0 0.669 0.671 0.674 0.676 0.678 0.68018.5 0.657 0.660 0.662 0.664 0.666 0.66819.0 0.646 0.648 0.650 0.652 0.654 0.65619.5 0.634 0.636 0.638 0.641 0.643 0.645

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    Apr 21 1994 08:15:13 Version XIO - Release 1.0.0

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    Machine ID: photon1

    Description: 6 MV X-Rays Demo Machine

    Machine validation status: Validated

    Most recent validation date: Feb 04 1994

    TAR description: TAR generated from PDDs at 100cm

    Modality: photon

    Energy (MV): 6.00

    Machine reference dist (cm): 100.0

    Reference depth (cm): 1.5

    Last generated date: Dec 17 1993

    Generated from: raw PDD

    Used PDDs at Source-to-skin dist

    (cm): 100.0

    Tissue Air Ratios Generated from PDD Data

    Depth(cm) 21x21 21.5x21.5 22x22 22.5x22.5 23x23 23.5x23.5----------------------------------------------------------------------20.0 0.623 0.625 0.627 0.629 0.632 0.63420.5 0.611 0.613 0.616 0.618 0.620 0.62221.0 0.600 0.602 0.604 0.606 0.608 0.61021.5 0.589 0.591 0.593 0.595 0.598 0.60022.0 0.578 0.580 0.582 0.584 0.587 0.58922.5 0.567 0.569 0.571 0.573 0.575 0.57723.0 0.555 0.557 0.559 0.561 0.563 0.56523.5 0.546 0.548 0.550 0.552 0.554 0.55624.0 0.536 0.538 0.540 0.542 0.544 0.54624.5 0.526 0.528 0.530 0.531 0.533 0.53525.0 0.516 0.517 0.519 0.521 0.522 0.52425.5 0.506 0.508 0.510 0.511 0.513 0.51526.0 0.497 0.499 0.500 0.502 0.503 0.505

    26.5 0.488 0.489 0.491 0.492 0.494 0.49527.0 0.478 0.480 0.481 0.483 0.484 0.48627.5 0.470 0.471 0.473 0.474 0.476 0.47728.0 0.461 0.463 0.464 0.466 0.467 0.46928.5 0.453 0.455 0.456 0.457 0.459 0.46029.0 0.445 0.446 0.447 0.449 0.450 0.45229.5 0.435 0.437 0.438 0.439 0.441 0.44230.0 0.426 0.427 0.428 0.430 0.431 0.432

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    Apr 21 1994 08:15:13 Version XIO - Release 1.0.0

    Doc: 001940321.081507.000

    Machine ID: photon1

    Description: 6 MV X-Rays Demo Machine

    Machine validation status: Validated

    Most recent validation date: Feb 04 1994

    TAR description: TAR generated from PDDs at 100cm

    Modality: photon

    Energy (MV): 6.00

    Machine reference dist (cm): 100.0

    Reference depth (cm): 1.5

    Last generated date: Dec 17 1993

    Generated from: raw PDD

    Used PDDs at Source-to-skin dist

    (cm): 100.0

    Tissue Air Ratios Generated from PDD Data

    Depth(cm) 24x24 24.5x24.5 25x25 40x40----------------------------------------------------------0.0 0.743 0.749 0.754 0.8180.1 0.746 0.751 0.756 0.8240.2 0.748 0.753 0.759 0.8300.3 0.756 0.761 0.766 0.8460.4 0.763 0.768 0.773 0.8620.5 0.783 0.788 0.792 0.9100.6 0.803 0.807 0.811 0.9580.7 0.861 0.864 0.867 0.9900.8 0.920 0.922 0.923 1.0230.9 0.961 0.963 0.964 1.0371.0 1.002 1.004 1.005 1.0511.1 1.020 1.021 1.023 1.0581.2 1.038 1.039 1.040 1.064

    1.3 1.048 1.049 1.049 1.0691.4 1.058 1.059 1.059 1.0731.5 1.065 1.066 1.067 1.0731.6 1.068 1.069 1.070 1.0741.7 1.071 1.072 1.073 1.0741.8 1.071 1.072 1.073 1.0731.9 1.071 1.072 1.073 1.0722.0 1.071 1.072 1.073 1.0712.1 1.071 1.072 1.072 1.0702.2 1.071 1.071 1.072 1.0682.3 1.070 1.071 1.071 1.0672.4 1.069 1.070 1.071 1.0662.5 1.068 1.069 1.070 1.0642.6 1.067 1.068 1.069 1.0632.7 1.063 1.064 1.065 1.0612.8 1.060 1.060 1.061 1.059

    2.9 1.059 1.059 1.060 1.0573.0 1.057 1.058 1.059 1.0563.1 1.056 1.056 1.057 1.0543.2 1.054 1.054 1.055 1.0533.3 1.052 1.053 1.054 1.0503.4 1.050 1.051 1.052 1.0473.5 1.047 1.048 1.049 1.0463.6 1.044 1.045 1.046 1.0463.7 1.043 1.044 1.044 1.0433.8 1.041 1.042 1.043 1.0413.9 1.039 1.040 1.041 1.039

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    Apr 21 1994 08:15:13 Version XIO - Release 1.0.0

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    Machine ID: photon1

    Description: 6 MV X-Rays Demo Machine

    Machine validation status: Validated

    Most recent validation date: Feb 04 1994

    TAR description: TAR generated from PDDs at 100cm

    Modality: photon

    Energy (MV): 6.00

    Machine reference dist (cm): 100.0

    Reference depth (cm): 1.5

    Last generated date: Dec 17 1993

    Generated from: raw PDD

    Used PDDs at Source-to-skin dist

    (cm): 100.0

    Tissue Air Ratios Generated from PDD Data

    Depth(cm) 24x24 24.5x24.5 25x25 40x40-----------------------------------------------------4.0 1.037 1.038 1.038 1.0384.1 1.034 1.035 1.036 1.0354.2 1.032 1.033 1.034 1.0334.3 1.030 1.031 1.031 1.0304.4 1.027 1.028 1.029 1.0284.5 1.025 1.026 1.027 1.0254.6 1.023 1.024 1.025 1.0244.7 1.020 1.021 1.023 1.0224.8 1.018 1.019 1.020 1.0214.9 1.016 1.017 1.018 1.0195.0 1.013 1.015 1.016 1.0185.1 1.011 1.013 1.014 1.0155.2 1.009 1.010 1.012 1.013

    5.3 1.007 1.008 1.010 1.0105.4 1.005 1.006 1.007 1.0085.5 1.003 1.004 1.005 1.0055.6 1.000 1.001 1.003 1.0035.7 0.998 0.999 1.000 1.0015.8 0.995 0.996 0.997 0.9995.9 0.992 0.993 0.995 0.9976.0 0.990 0.991 0.992 0.9956.1 0.987 0.989 0.990 0.9936.2 0.985 0.986 0.988 0.9916.3 0.983 0.984 0.985 0.9886.4 0.980 0.982 0.983 0.9866.5 0.978 0.979 0.981 0.9846.6 0.976 0.977 0.979 0.9826.7 0.973 0.975 0.976 0.9796.8 0.971 0.973 0.974 0.976

    6.9 0.969 0.970 0.972 0.9747.0 0.967 0.968 0.970 0.9717.1 0.964 0.965 0.967 0.9697.2 0.961 0.962 0.964 0.9677.3 0.958 0.959 0.961 0.9657.4 0.955 0.956 0.958 0.9637.5 0.952 0.953 0.955 0.9617.6 0.950 0.951 0.953 0.9597.7 0.948 0.949 0.951 0.9577.8 0.946 0.947 0.949 0.9547.9 0.943 0.945 0.947 0.952

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    XiO

    35

    XIO Demo-only data Page 35 of 36

    Apr 21 1994 08:15:13 Version XIO - Release 1.0.0

    Doc: 001940321.081507.000

    Machine ID: photon1

    Description: 6 MV X-Rays Demo Machine

    Machine validation status: Validated

    Most recent validation date: Feb 04 1994

    TAR description: TAR generated from PDDs at 100cm

    Modality: photon

    Energy (MV): 6.00

    Machine reference dist (cm): 100.0

    Reference depth (cm): 1.5

    Last generated date: Dec 17 1993

    Generated from: raw PDD

    Used PDDs at Source-to-skin dist

    (cm): 100.0

    Tissue Air Ratios Generated from PDD Data

    Depth(cm) 24x24 24.5x24.5 25x25 40x40--------------------------------------------------------8.0 0.941 0.943 0.945 0.9508.1 0.938 0.940 0.942 0.9478.2 0.936 0.938 0.940 0.9448.3 0.933 0.935 0.937 0.9418.4 0.931 0.933 0.934 0.9398.5 0.928 0.930 0.932 0.9368.6 0.925 0.927 0.929 0.9348.7 0.923 0.924 0.926 0.9328.8 0.920 0.922 0.923 0.9308.9 0.917 0.919 0.920 0.9289.0 0.914 0.916 0.918 0.9269.1 0.912 0.913 0.915 0.9249.2 0.909 0.911 0.913 0.921

    9.3 0.906 0.908 0.910 0.9199.4 0.904 0.905 0.907 0.9169.5 0.901 0.903 0.905 0.9139.6 0.898 0.900 0.902 0.9119.7 0.896 0.898 0.900 0.9089.8 0.893 0.895 0.897 0.9059.9 0.891 0.893 0.895 0.90310.0 0.888 0.890 0.892 0.90010.5 0.876 0.878 0.880 0.89011.0 0.860 0.863 0.865 0.87811.5 0.847 0.849 0.851 0.86712.0 0.836 0.838 0.840 0.85812.5 0.823 0.826 0.828 0.84013.0 0.810 0.812 0.814 0.83113.5 0.796 0.799 0.801 0.82014.0 0.782 0.785 0.787 0.809

    14.5 0.771 0.774 0.776 0.79515.0 0.759 0.761 0.764 0.78215.5 0.745 0.747 0.750 0.77216.0 0.730 0.733 0.735 0.76216.5 0.718 0.721 0.724 0.75217.0 0.706 0.709 0.712 0.74217.5 0.695 0.697 0.700 0.73118.0 0.683 0.686 0.688 0.71918.5 0.671 0.673 0.676 0.70719.0 0.658 0.661 0.664 0.69619.5 0.647 0.650 0.652 0.686

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    Computat ional Data Tables

    XIO Demo-only data Page 36 of 36

    Apr 21 1994 08:15:13 Version XIO - Release 1.0.0

    Doc: 001940321.081507.000

    Machine ID: photon1

    Description: 6 MV X-Rays Demo Machine

    Machine validation status: Validated

    Most recent validation date: Feb 04 1994

    TAR description: TAR generated from PDDs at 100cm

    Modality: photon

    Energy (MV): 6.00

    Machine reference dist (cm): 100.0

    Reference depth (cm): 1.5

    Last generated date: Dec 17 1993

    Generated from: raw PDD

    Used PDDs at Source-to-skin dist

    (cm): 100.0

    Tissue Air Ratios Generated from PDD Data

    Depth(cm) 24x24 24.5x24.5 25x25 40x40--------------------------------------------------20.0 0.636 0.638 0.641 0.67620.5 0.624 0.627 0.629 0.66621.0 0.613 0.615 0.618 0.65621.5 0.602 0.604 0.607 0.64522.0 0.591 0.593 0.596 0.63422.5 0.579 0.581 0.584 0.62423.0 0.567 0.569 0.572 0.61323.5 0.558 0.560 0.562 0.60424.0 0.548 0.550 0.552 0.59524.5 0.537 0.539 0.540 0.58625.0 0.525 0.527 0.529 0.57625.5 0.516 0.518 0.519 0.56626.0 0.507 0.508 0.510 0.554

    26.5 0.497 0.499 0.500 0.54627.0 0.487 0.489 0.490 0.53827.5 0.479 0.480 0.482 0.52928.0 0.470 0.472 0.473 0.52028.5 0.462 0.463 0.465 0.51129.0 0.453 0.454 0.456 0.50229.5 0.443 0.445 0.446 0.49430.0 0.433 0.435 0.436 0.486