the establishment of optically stimulated luminescence
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The Establishment of Optically Stimulated Luminescence (OSLD’s)
Dosimeters Studies in Universiti Teknologi Malaysia
(UTM)Assoc. Prof. Dr. Suhairul Hashim
Physics Department, Faculty of Science, Universiti Teknologi Malaysia, Johor Bahru, Malaysia.
Centre for Sustainable Nanomaterials (CSNano), Ibnu Sina Institute for Scientific and Industrial Research (ISI-SIR), Universiti Teknologi Malaysia, 81310 UTM Skudai, Johor, Malaysia.
Content
101
102
103
104
1
1
UTM at a Glance
Highlights on OSL research facilities in UTM
Research Direction
Research Performance 2017-2019
Conclusion Remarks
Conclusion Remarks
105
Welcome To
UNIVERSITI TEKNOLOGI MALAYSIA
UTM KUALA LUMPUR
CAMPUS
(35 hectares)
UTM JOHOR BAHRU
CAMPUS
(1,148 hectares)
innovative entrepreneurial global
UTM KUALA LUMPUR
CAMPUS
(35 hectares)
innovative entrepreneurial global
[1904] Treacher Technical School, Weld Road
[1925] Technical School, Jalan Briickfields --- JKR
[1930] Technical School, High Street
Research University 2010
Universiti Teknologi Malaysia (UTM) 1975
National Institute of Technology (ITK) University Status
1972
[1960] Technical College – Professional Programmes
[1955] Technical College, Jalan Gurney
[1946] Technical College – Diploma
[1906] Technical School, BatuLane , Bukit Nanas
Autonomous University 2012
UTM’s Journey:
From Technical School to
Research University
innovative entrepreneurial global
UTM at a Glance: Faculties
RANKINGS & RATINGS
★★★★★★Malaysia Research Assessment
(MyRA)
Top 1%QS World University Rankings
★★★★★★Rating for Higher Education
Institutions in Malaysia (SETARA)
#129THE Asia University Rankings
SOCIAL SCIENCES
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Education
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ENGINEERING
Civil Engineering
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Electrical Engineering
Mechanical Engineering
Chemical and Energy Engineering
SCIENCE & TECHNOLOGY
Science
Computing
Geoinformation & Real Estate
Razak School of Engineering and Advanced Technology
Malaysia-Japan International Institute of Technology
Advanced Informatics School
23kstudents
12kpostgraduates
5kPhD PGs
1Student statistics based on headcount as of
Dec 2017
UTM at a Glance: Faculties
RANKINGS & RATINGS
★★★★★★Malaysia Research Assessment (MyRA)
Top 1%QS World University Rankings
★★★★★★Rating for Higher Education
Institutions in Malaysia (SETARA)
#129THE Asia University Rankings
23kstudents
12kpostgraduates
5kPhD PGs
1Student statistics based on headcount as of Dec 2017
Synergy 4.0
Engineering
Science
Social Sciences & Humanities
Razak Faculty of Technology & Informatics
Malaysia-Japan International Institute of Technology
Azman Hashim International Business School
Built Environment & Surveying
UTM at a Glance: Research Capacity
HIGHER INSTITUTION CENTRE OF EXCELLENCE (HICoE)
6 CENTRE OF EXCELLENCE
Each of our centres of excellence have a more specific, in-depthfocus area & align their resources towards being recognized as thereferral centre for their scientific contribution.
4UTM four HICoEs in Malaysia, each championing a nichearea entrusted to them by the nation, ranging from 5Gtechnology to vibration engineering.
RESEARCH INSTITUTES 6One of the success stories of UTM where we grouptogether research centres with similar focus areas &established Research Institutes. The institutes has sinceperform better & manage to rival our top HICoE. 170+ RESEARCH GROUP
The smaller nucleus of our research entities where weencourage working in either single-discipline or multi-disciplinegroup.
1652 ACADEMICIANS
Since the inception of research university, we have build a strongresearch team led by over 1,600 academic staffs of which 86% ofthem are PhD holders.
5RESEARCH ALLIANCE (NICHE AREA)
Research in UTM are guided by the five niche areas(research alliance) built upon our conventional strength inengineering while exploring other emerging fields.
FACILITIES
OSL Facilities in Physics Department, Faculty of Science, UTM
MicroStar OSL Reader
Pocket Annealer
Dosimeter
nanoDot™ OSLD (screened and unscreened)
InLight ® OSLD (Personnel Monitoring)
InLight ® OSLD (Environmental Monitoring)
OSL READER (2 UNIT) IN PHYSICS
DEPARTMENT, FACULTY OF SCIENCE,
UTM MicroStar OSL Reader
Technical Specification
OperationAl2O3 with OSL is linear
from 10 µGy to >100 Gy
Speed Readout in 13 sec.
Capacity 1 slide (1 dosimeter)
LED array 36
Size(cm) 11(H) x 33(W) x 23(D)
Power
requirements
110-220 V, 1.5 amps, 50-60
Hz
Weight 8 kg
Bar code inputkeyboard; external bar code
reader; file upload
Monitoring
Position Dial
(DRK, CAL, LED,
E1,E2,E3,E4)
System
Interface
Dosimeter
Slot
Pocket Annealer
Dosimeter Slot
Technical Specification
Dimensions(cm) 28(H) x 28(L) x 11.5(W)
Weight 5.4 kg
110-220V 1.6 A / 50-60 Hz
Load capacity Manual (1 dosimeter)
Annealing Time
Time range from 1 to 255
seconds.
Time adjustment by step of
1 second
Annealing
Performance
10 seconds of exposure to
reach a value less than 0.1
mSv with an initial dose <
to 1 mSv
Operating
Performance-10℃ to 40 ℃
Hydrometry < 90 %
Dosimeter
1. nanoDot™ OSLD
Technical Specification
Dose operating
range
For general applications, useful dose
range 10 µGy to >100Gy;
Lower Limit of
Detection (LLD)0.1 mGy
Useful Energy Range From 5 keV to 20 MeV
Energy Dependence
Accurate within ±10% over diagnostic
energy range 70-140 kvP; within ±5%
for photons and electrons from 5 MeV-
20MeV
Accuracy (total
uncertainly - single
measurement)
±10% with standard nanoDot;
±5.5% with screened nanoDot
Precision±5%, k=2 for both standard and
screened nanoDot
Dimension (H×W×D) 10 mm×10 mm×0.2 mm
Mass density 1.03 g cm3
Serial
Number
Our Facilities:
Standard nanoDot (Unscreen) : ~100 pcs.
Screened nanoDot : ~400 pcs.
2D Bar
Code
2. InLight ® OSLD (Personnel Monitoring)
Our Facilities:
InLight ® OSLD (XA) : ~73 pcs.
2D Bar Code
Serial Number
Specifications
Radiation
TypeEnergy Range
Minimum Dose
Equivalent
Reported
Photon
(x or
gamma ray)
5 keV to 20 MeV5 mrem
(50 μSV)
Beta
Particle
150 keV to 10 MeV
(expressed as
average energy)
10 mrem
(100 μSV)
3. InLight ® OSLD (Environmental Monitoring)
Our Facilities:
InLight ® OSLD (EX) : ~186 pcs.
Serial Number
2D Bar Code
Specifications
Radiation
TypeEnergy Range
Minimum
Ambient Dose
Equivalent
Reported
Photon
(x or gamma
ray)
5 keV to 20 MeV
5 mrem
(50 μSV)
High Sensitivity:
0.1 mrem
(1 μSv)
Beta Particle
150 keV to 10 MeV
(expressed as
average energy)
10 mrem
(100 μSV)
High Sensitivity:
20 mrem
(200 μSV)
Component in XA and EX OSLDs
Element Position
(primary filter)
Filtration
(approx mg∙cm-2)Use
E1 OW
(open window)29 Beta response
E2PL
(plastic)275* Beta characterization
photon response
E3 Al
(aluminum)375* Photon characterization
E4Cu
(copper)545* Photon response
and characterization
*Add approximately 120 mg/cm2 for the outer holder.
E1
E2
E3
E4
: Hp (10) Deep Dose
: Hp (3) Lens Dose
: Hp (0.07) Shallow Dose
: Beta Dose
(Source: Nagase Landauer Ltd.)
RESEARCH STUDY Personnel Effective Dose of Fluoroscopy-Guided Interventional in National
Cancer Institute of Malaysia
OBJECTIVES OF THE
STUDY
1. To investigate the performance of Al2O3:C based OSL system for personnel
dosimetry.
2. To estimate the personnel effective dose for interventional radiology staff
during the fluoroscopy-guided interventional procedure.
3. To determine the respective eyes lens dose with position of the interventional
radiologist during the fluoroscopy-guided interventional procedure.
SIGNIFICANCE OF THE
STUDY
The information that will be derived from this study will give advantage to perform
new future works involving patient and personnel dose with different modality and
procedure. It’s will improve personnel awareness of radiation exposure results from
medical exposures to keep the patient and personnel radiation dose as low as
reasonably achievable.
CURRENT PROGRESS In progress
COLLABORATION 1. Malaysian Nuclear Agency
2. National Cancer Institute of Malaysia.
Sample characterisation in Malaysia Nuclear AgencyInterventional Fluoroscopy Guided (IFG) procedure in
National Cancer Institute of Malaysia
1
CURRENT RESEARCH
Ratna Suffhiyanni Omar (PSC163042) Register on 20/2/17
RESEARCH STUDY Anthropomorphic Phantom Organ Dose Assessment Using Optically
Stimulated Luminescence Dosimeters Unified in Multi-Detector Computed
Tomography
OBJECTIVES OF THE
STUDY
1. To calibrate the thermoluminescence dosimeter (TLD-100™) and nanoDot™
optically stimulated luminescence dosimeter (OSLD) in dose mapping
measurement.
2. To implement the standardized CT test parameters used in QC protocol from
different MDCT models.
3. To assess the organ dose profile using nanoDot™ OSLDs and standard
anthropomorphic phantom (Alderson Radiation Therapy phantom).
4. To compare dose mapping profile results using Monte Carlo (MC) simulation in
CT-Expo software.
SIGNIFICANCE OF THE
STUDY
1. To ensure that the CT clinical diagnostic information at the lowest possible cost
and with the least possible radiation exposure to the patient/medical staff.
2. This study is designed and attempted to be a significance study to do more good
than harm to the patient in CT clinical diagnosis or treatment.
3. This method may pave the way of introducing the diagnostic reference level in
terms of dose distribution in different organs during CT procedures.
CURRENT PROGRESS In Progress
COLLABORATION 1. Malaysian Nuclear Agency
2. Sultanah Aminah Hospital, Johor Bahru
2
CURRENT RESEARCH
Asmah Bohari (PSC163011) Register on 23/8/16
Instrument: Constant Potential Industrial
X-ray (Model Philips MG 165).
Filter: 4.0 mm Al + 0.2 mm Cu RQT filter
Al RQT
Filter
Cu RQT
Filter
Sample characterisation in Malaysia Nuclear Agency
Dose mapping on ART
phantom
2.5 cm length, 0.7 cm diameter
19
21
22
23
20
24
RIGHTLEFT
Anthropomorphic Alderson Radiation Therapy
phantom (model number ARTM1092)
RESEARCH STUDY Determination of Optically Stimulated Luminescence Dosimetric
Characteristics and Suitability for Entrance Surface Dose Assessment in
Diagnostic X-ray Examinations
OBJECTIVES OF THE
STUDY
1. To calibrate and evaluate the stability of the new Landauer InLight MicroStar
OSL dosimetry system.
2. To investigate the dosimetric characteristics of the nanoDots OSLD including
repeatability, reproducibility, dose linearity, signal depletion, element correction
factor, angular dependence, and energy dependence in radiography energy
range from 40 kV – 150 kV with typical doses ranging from 0 – 20 mGy.
3. To assess the suitability of the nanoDots OSLD for direct and indirect ESD
measurements in Chest, Abdomen, Skull, and Thoracic spine radiography, with
associated eye, thyroid and gonad doses using adult anthropomorphic phantom
and compare with CALDose_X 5.0 software calculations.
SIGNIFICANCE OF THE
STUDY
1. This research could serve as a baseline for OSL dosimetry technique in UTM,
and as reference for future studies in similar research.
2. Provide an improved calibration data for the new OSL system suitable for
implementation of dose assessment in general radiography.
3. Introduces new sets of :- energy correction factors to correct for energy
differences in radiography (40 – 150 kV) - element correction factors for new
batch of nanoDots OSLD.
4. Ascertain the suitability of the nanoDots OSLD for ESD measurements in routine
X-ray examinations (general and dual energy radiography).
CURRENT PROGRESS Completed on 12/9/18
COLLABORATION 1. Malaysia Nuclear Agency
2. National Cancer Institute of Malaysia
3. Diagnostic Imaging Laboratory, Faculty of Health Sciences, UKM, Kuala Lumpur
4. Permai Hospital, Johor Bahru
3
CURRENT RESEARCH
Yahaya Musa(PSC153022) Register on 23/9/15
Dosimetric characterization
Direct Measurement
• OSLD place directly on the whole-body phantom
• Phantom (weight, thickness, e.t.c) and exposure
parameters (kVp, mAs, e.t.c) were recorded
Indirect Measurement
• OSLD place at sufficient distance dFTD from the X-
ray tube in the absence of backscatter material
ESD Measurement
Research Performance 2017-2019
1. Y. Musa, S. Hashim, S.K. Ghoshal, D.A. Bradley, N.E. Ahmad, M.K.A. Karim, A. Hashim and A.B.A. Kadir,
(2018), “General radiographic attributes of optically stimulated luminescence dosimeters: A basic insight”.
Radiation Physics and Chemistry Vol. 147, pp 1-6. (Impact Factor 1.315; Q1 in Nuclear Science &
Technology)
2. S. Hashim, Y. Musa, S.K. Ghoshal, N.E. Ahmad, I.H. Hashim, M. Yusop, D.A. Bradley, and A.B.A. Kadir,
(2018), “Optically stimulated Al2O3:C luminescence dosimeters for teletherapy: Hp(10) performance
evaluation”. Applied Radiation and Isotopes Vol. 135, pp 7 -11. (Impact Factor 1.128; Q3 in Nuclear Science
& Technology)
3. Yahaya Musa, Suhairul Hashim, David A. Bradley, Muhammad Khalis A. Karim, and Asmaliza Hashim,
(2017), “Reproducibility assessment of commercial optically stimulated luminescence system in diagnostic X-
ray beams”. Journal of Radioanalytical and Nuclear Chemistry Vol. 314, pp 2029 – 2036. (Impact Factor
1.282; Q2 in Nuclear Science & Technology)
4. Y. Musa, S. Hashim, M.K.A. Karim, K.A. Bakar, W.C. Ang, N. Salehhon, (2017),“Response of optically
stimulated luminescence dosimeters subjected to X-rays in diagnostic energy range”. Journal of Physics:
Conference Series Vol 851, pp 012001.
5. Y. Musa, S. Hashim, S.K. Ghoshal, D.A. Bradley, N.E. Ahmad, M.K.A. Karim, A. Sabarudin (Under Review-
2019), “Effectiveness of Al2O3:C OSL dosimeter toward entrance surface dose measurement in common X-ray
diagnostics: Outperforming traits”. Radiation Physics and Chemistry. (Impact Factor 1.315; Q1 in Nuclear
Science & Technology)
6. A. Bohari, S. Hashim, S.K.Ghoshal and S. N. M. Mustafa, (In-press-2019), “Assessment Of Interchangeability
Of Personal Effective Dose Algorithms In Fluoroscopy-guided Interventions Using Bland-altman Analysis”
Radiation Protection Dosimetry. (Impact Factor 0.822; Q3 in Nuclear Science & Technology)
Inter-comparison report
Organization : Universiti Teknologi Malaysia
Reading Date : 17-Jan-19
set ID Reading dose (mSv) Hp(10) (mSv) Uncer (mSv)
Control
XA02455778V 0.210
XA00091979T 0.160
XA01712567C 0.150
AVERAGE DOSE 0.173
A
XA018395662 0.750 0.577
0.125
XA01839680A 0.500 0.327XA016368455 0.730 0.557
B
XA01997748L 3.340 3.167
0.475
XA00359291I 3.450 3.277XA01373128D 4.290 4.117
C
XA01473414F 0.490 0.317
0.025
XA01622543L 0.520 0.347XA01839801C 0.470 0.297
D
XA01622746B 2.680 2.507
0.165
XA018771169 2.350 2.177XA02006661P 2.670 2.497
E
XA01373354E 0.780 0.607
0.095
XA01839498X 0.590 0.417XA019977401 0.590 0.417
F
XA01997941V 4.700 4.527
0.915
XA016267178 6.530 6.357XA017393659 5.900 5.727
G
XA01997855O 0.490 0.317
0.020
XA01997824T 0.530 0.357XA01840207J 0.530 0.357
H
XA01839800E 2.740 2.567
0.120
XA02006695E 2.900 2.727XA01839562A 2.980 2.807
BKG
XA02335338C 0.200
XA02006696C 0.160
XA01373363F 0.200
INTERCOMPARISON OF PERSONAL
DOSE EQUIVALENT (Hp(10)) STUDY
Contributions of the Study
This research could serve as abaseline for OSL dosimetrytechnique in UTM, and asreference for future studies insimilar research.
Provide an improved calibration
data for the new OSL system
suitable for implementation of
dose assessment.
Introduces new sets of :
• energy correction factors tocorrect for energy differences inradiography (40 – 150 kV)
• element correction factors fornew batch of nanoDots OSLD
Ascertain the suitability of thenanoDots OSLD for ESDmeasurements in routine medicaldiagnosis examinations.
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