Aymeric ROBERT – XCS Instrument Scientist Eric Bong – XCS Lead Engineer April, 2009

1. LUSIX-ray Correlation Spectroscopy InstrumentAdvanced Procurement Review :Large Angle Detector Mover Aymeric ROBERT – XCS Instrument Scientist Eric Bong – XCS Lead Engineer April, 2009

2. XCS Instrument Overview Request your help : We should name this device in another way Suggestions ?

3. XCS Instrument Overview 600 mm 2x 2 mm 3 mm 30 mm 1400 mm ( Floor )

4. XCS LA-mover Transport Tunnel The Large Angle Detector Stage (LADS) is a component of the XCS Instrument. It positions the XCS pixelated detector (or any future detector available) in reciprocal space to perform X-ray Photon Correlation Spectroscopy experiments. The LADS vacuum flight path provides the capability to reduce air-scattering and air-absorption between the sample location (i.e located at the Center Of Rotation of the XCS diffractometer system) and the detector. The positioning of the detector must be obtained in a precise and reproducible fashion. The Large Angle Detector Stage motion should be totally decoupled from the XCS diffractometer system. As for the XCS diffractometer system, the joint use of the XCS diffractometer system and the LADS will perform as a 4-circle horizontal scattering geometry Diffractometer. FEH Hutch 4

5. XCS LA-mover Transport Tunnel • The Large Angle Detector Stage serves the following purposes: • Positioning the XCS pixelated detector (or future detectors available) at the location of interest in the reciprocal space in the vicinity of the horizontal scattering plane. • Allowing a large sample-detector distance enabling to resolve speckle patterns (i.e coherent diffraction patterns) • Allowing to reach scattering angles 2θ up to 55 degrees for diffraction experiments • Allowing some Small Angle X-ray Scattering capability when 2θ=0º. • Allowing Grazing Incidence scattering and diffraction experiments. FEH Hutch 4

6. XCS Large Angle Detector Mover Methodology Produce Physics Requirement Document Evaluation of existing devices P3 SLAC plan to contract design/build Perform design concept study Split effort between mover and components mounted to mover feasible? no Continue with design/build yes Design upper components at SLAC • Multiple vendors expressed interest in mover design/build • Description : i.e 3 Major Elements • Carriage mover • End module • Vacuum chamber

7. XCS LA-Detector Mover Safety • Safety • Informal meeting with Ernie Gomes and David Shemwell (SLAC ES&H) • Both ES&H Representatives were satisfied that a safe implementation of the large angle mover can be accommodated with a combination of engineering and administrative controls • Preliminary concept • Set motors to run at low velocities and acceleration (software) • Set low current trip threshold of motors (software) • Brakes on all axis • Installation • Need to coordinate with vendor regarding the hazards associated with large angle mover installation, initial turn on and rigging • Seismic • The entire system will be reviewed and approved by SLAC for seismic safety • Electrical • NRTL, SLAC Inspection and approval

8. XCS LAM Device Location in the XCS Experimental Hutch Transport Tunnel FEH Hutch 4

9. XCS LAM : Carriage Mover Conceptual Design of the XCS LAM : Based on the comparison of existing designs for the mover Transport Tunnel HERIX, sector 30 FEH Hutch 4

10. XCS LAM : Carriage Mover Conceptual Design of the XCS LAM Transport Tunnel FEH Hutch 4

11. XCS LAM : Carriage Mover Horizontal Motion Description • Completely decouple from the Diffractometer System • The carriage is supported by two units, combining the following motions: • The upstream unit consists of : • 1 X driven motion • 1 Z driven linear motion • 1 slaved rotation motion • The downstream unit consists of : • 1 X driven motion • 1 Z slaved linear motion • 1 slaved rotation motion Transport Tunnel FEH Hutch 4

12. XCS LAM : Carriage Mover • Horizontal Motion [2θ] • Range -1° to 55° • Desired resolution 1mDeg • Additional lateral horizontal translation : 1m Transport Tunnel FEH Hutch 4

13. XCS LAM : Carriage Mover • Vertical Motion [γ,Y] • [γ] Range -0.1° to 1° • Desired resolution 1mDeg • [Y] range +3mm/-30mm • Preliminary range of translation : -45mm/+145mm Transport Tunnel FEH Hutch 4

14. XCS LAM : Carriage Mover • Additional Requirements • Top of the carriage mover below 892mm, when centered • Maximum Load : 4000lbs • Maximum width : 30 inch • Respect stay clears • Installation of rails on the side for mounting top elements • Controls provided by SLAC ( will be obtained from APS) • Overview of the Top Elements mounted on the rail Transport Tunnel FEH Hutch 4

15. XCS LAM : End Module • Adjustable End Module : • Adjustable longitudinal position : no motor required • Precision Detector positioning system • Local Detector for alignment • Beamstop system before an exit window Transport Tunnel FEH Hutch 4

16. XCS LAM : End Module • Detector Precision Positioning : • [X,Y] range +12”/-6” with 10μm repeatability • [Z] longitudinal adjustment over 25”. Not motorized • Maximum Detector weight 50lbs Transport Tunnel FEH Hutch 4

17. XCS LAM : End Module • Beamstop System • Possibility to have multiple beamstops • Motion on the vacuum side (upstream from the exit window) • Located as close as possible from the window • Radial range >6” with 10μm repeatability • Tangential range >±0.25” with 10μm repeatability Transport Tunnel FEH Hutch 4

18. XCS LAM : End Module • Exit window • Mounted on a 12” flange • As large as possible given the chosen material • Easily exchangeable • Kapton vs beryllium tbi Transport Tunnel FEH Hutch 4

19. XCS LAM : Vacuum System • Vacuum system • 12” section if possible • Vacuum better than 5.10-4 Torr (No UHV!) • Vented to air • Resonable pumping time • Providing 2 possible distance in combination with End-module • Entrance window : large CVD C* (40mm Ø) • MODULARITY ! Transport Tunnel FEH Hutch 4

20. XCS LAM Transport Tunnel FEH Hutch 4

21. XCS LAM Transport Tunnel FEH Hutch 4

22. XCS Large Angle Detector MoverEngineering Specifications

23. Acquisition Strategy • The carriage mover will be procured as a Design/build contract. • The end-module, vacuum system and rail will be designed by SLAC staff. • Soon at the level of Preliminary Design Review • Final Design Review before the PO for the carriage mover is out. • To sole or not to sole source… • Current plan is to go out for bid

24. Status of Discussions with Vendors • Cost based on ANL HERIX instrument spoke with Oxford who built HERIX • Potential Vendors • Oxford Instrument • Interested in bidding on contract • Built Herix • Huber (via Blake Industries) • Interested in bidding on contract • JJ X-Ray • Interested in bidding on contract • Aerotech • Interested in bidding on contract • KTC • Interested in bidding on contract

25. XCS LAM XCS LAMProcurement Specification

26. XCS Detector Mover Schedule • Possible advanced schedule • Must re-baseline P3 schedule to validate advanced schedule

27. XCS LAM • Vendor Selection Criteria : identical to XPP procurements