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HXMA BL Status UpdateHXMA BL Status Update@ CLS AUM 07@ CLS AUM 07June 15, 2007June 15, 2007

• XAFS: operational;

• Microprobe: opening for letter of intent;

• Diffraction: under commissioning.

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XAFS EndstationXAFS EndstationStatus: operational:Beam modes: Mono only & M-mono-MGeneral User program: successfully performing general users' experiments since Jan. 2007Detectors available & will be available:

•Straight ion chamber (CLS);•Lytle (CLS);•Single element Vortex (CLS);•4 elements Vortex (CLS);•Single Ge detector (CLS);•32 element Ge detector (Graham & Ingird);

Low temperature sample environment:•ARS, MIN DE-202X-G-T (CLS);•Oxford, CF1208 (Helen);

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GU program (XAFS)GU program (XAFS)

Beamline New Proposals

BeamtimeRenewals

Cycle #6

Far IR 4 N/A

HXMA 20 7

SM 19 N/A

SGM 16 12

PGM 9 3

Total 68 21

Cycle #5

Far IR 0 N/A

Mid IR 11 N/A

HXMA 19 N/A

SGM 22 12

PGM 6 5

Total 58 17

Cycle#5 Cycle#6

Total GU proposals 19 27

Proposals allocated 12 13

Allocated / Total (proposal)

63% 48%

Total shifts requested 150 334

Shifts allocated 63 77

Allocated / Total (shifts) 42% 23%

Note: In cycle#5, 11 GU experiments have performed, 1 canceled because CLS machine failure.

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Beam time available for cycle#6Beam time available for cycle#6Actual % %

HXMA Allocation 292 275

Unknown - Possible unstable beam after October startup (1st 2 weeks unknown) 17

CLS Beamline Scientist (≤10%) 28 10 27.5

Maintenance & upgrades (≤10%) 28 10 27.5

Purchased Allocation (≤25%) (69 available, requesting 52) 52 25 68.75

Beam Team Allocation (≤15% of available time)   15 41.25

Discretionary (% undefined) (fee for service shifts not used) 18 0

General User Allocation (>%) (Requested 265) 77 40 110

100 275

BT member (s) Time request (shifts)

1 Graham and Ron 60 (20 days)

2 Ron 6

3 John 20+N

4 Dean 15 (5 days)

5 Jeanne 8

Microprobe / letter of intent 12

total 121+NBL commissioning time?

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Diffractometer & microprobe Diffractometer & microprobe

Future development:

GIXRD, DAFS, SEXAFS,

Resonant Anomalous Scattering

Sample environment:

Complete control of diffractometer, point detector and Vortex through spec@ software

Target: Letter of Intent during cycle 8. Operational in cycle 9.

Beamsize 10 x 30 m2 (V x H)

with Rh coated KB mirror pairs

1.891.88

1.871.86

1.851.84

Vertical Position (mm

)

2.802.752.702.652.60

Horizontal Position (mm)

10 x 30 m2 (V x H)

User interface

optical lens system, data collectionBeam size, flux, stability

Target: Operational in cycle 8 (2008)

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Microprobe commissioning Microprobe commissioning

Cu (line)profile

Selenium in Umangite (Cu3Se2) mineral specimen

Commissioning exercise data R Cavell, March 2007

Spot size approx 20 m, scan step 15 m,

Excitation energy 13500 eV, Vortex silicon drift detector.

Area examined (and illustrated ) approx 3200 m × 1600 m

Software by Sam Webb (SSRL)

4100

Mapping the Umangite Mineral

0

Co

As

Fe

Se

Cu

0 3200 microns

4100

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Long term Development Plan (1)Long term Development Plan (1)

Plan (1): 2nd mono @ POE

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Wiggler relocation and Plan (2)Wiggler relocation and Plan (2)

•Preliminary planed scheduled in October•Plan (1): 2nd ID source

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BL maintenanceBL maintenance

• BL optical component realignment after long shutdown:– Primary slits– Mirrors and mono

• Mechanical: survey• Optical (mono only & m-mono-m modes);

– Modification of BL BPMs @ Frontend (1) and pOE (2);

– Collimating mirror conditioning for UV and soft x-ray;

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BL study and upgradeBL study and upgrade

• X-ray beam stability at XAFS focus point (pressure, frequency of mono cooling LN2, cooling water, turbo pump…);

• BL BPM @ sOE;• BL harmonic rejection mirror;• Mono 2 detune effect; • BL single element Ge detector;• BL single element Vortex detector;• BL 4 element Vortex detectorBL maintenance, BL study and upgrade

needs more 10% beam time.