1 Michael Rowen 1 SXR Instrument FAC SXR Instrument Michael Rowen – Engineering Physicist June 9, 2009

2 Michael Rowen 2 SXR Instrument FAC Outline SXR Consortium SXR Instrument Configuration End Stations Funding-Spending Schedule Conclusions

3 Michael Rowen 3 SXR Instrument FAC SXR Consortium The SXR instrument is being built by a consortium formed between Stanford University, the University of Hamburg, CFEL (at DESY), LBNL, and the LCLS. The instrument is a soft x-ray beam line capable of monochromatic, “white” beam and spectrometer mode operations. SXR will be operated as a general user instrument. Consortium members get a slight preference during early operation only. All experiments will be handled through the LCLS proposal process. The end stations are to be supplied by users. User may collaborate with any of groups with listed endstations ( or propose their own systems.

4 Michael Rowen 4 SXR Instrument FAC SXR Instrument Single pulse shutter Transmission sample Chamber M1 Mirror & Grating System Exit slit & Spectrometer Detector Photon Stopper K-B Focusing Optics End Stations (user supplied) Beam Dump For overview see

5 Michael Rowen 5 SXR Instrument FAC Transmission Sample System:  Simple chamber just before mono.  Sample introduction and manipulator from top.  Coaxial pump laser in-coupling.  Two mirrors for 800 & 400nm The SXR Instrument will have the capability to do transmission experiments utilizing the monochromator as a spectrometer.

6 Michael Rowen 6 SXR Instrument FAC Monochromator  Upright image-fixed exit slit.  Operate in monochromatic (& spectrometer mode) &  “White” beam mode  Commercial mechanical system Varied Line Space (VLS) Plane Grating Monochromator:

7 Michael Rowen 7 SXR Instrument FAC Exit Slit Spectrometer Detector Exit slit commercial: Detector Design based on XTOD Imaging Detector: 10 μm resolution required 2.5x2.5mm area imaged Use 1024x1024 camera for 120Hz data collection Use XTOD Imaging Detector lens system

8 Michael Rowen 8 SXR Instrument FAC Refocusing Optics SXR End Station spot spec’ed at <10x10  m. AMO K-B system has tighter specs. Cost savings by copying AMO system. Small modification mirrors to accommodate the different focal lengths. SXR to clone AMO K-B system:

9 Michael Rowen 9 SXR Instrument FAC Differential Pump & Coaxial Pump Laser Between the focusing optics and the end station there will be a differential pump to allow operation of end stations at up to 1x10 -6 torr Differential pump sections double as collimators for beam containment. There will be a mirror for coaxial introduction of a pump or alignment laser. Two mirrors for 800 & 400nm Laser in-coupling mirror End Stations Differential Pumping

10 Michael Rowen 10 SXR Instrument FAC End Stations End Stations proposed to date: ( CFEL-ASG Multi-Purpose (CAMP), atoms to nano-particles : Max-Planck ASG at CFEL Surface Chemistry PES/XES/XAS: Stanford Electron Beam Ion Trap (EBIT): MPI Heidelberg & LLNL Momentum Resolved X-ray Scattering: Stanford & LBNL Resonant Imaging: Stanford Liquid Jet - Chemical Dynamics: CFEL, MAX-lab & MPI Gottingen

11 Michael Rowen 11 SXR Instrument FAC SXR Funding Stanford: $750k committed $500k at SLAC Remainder available as needed LBNL: $377k in kind design and engineering support Hamburg/DESY: $1800k committed $1200k at SLAC $300k due in May $300k due in July LCLS: $1500k committed and at SLAC

12 Michael Rowen 12 SXR Instrument FAC Hamburg/DESY/SLAC MoU & Funding MoU signed off by all parties 2/24/09. Approval to spend funds from Hamburg & CFEL 4/29/09. Processing the long lead requisitions as quickly as possible.

13 Michael Rowen 13 SXR Instrument FAC Costs-Spending All major SXR procurements have been at or below the budgeted amount. The engineering effort has been on track with the available funding. So far we have been limited by slow arrival funding and then spending approval. Timely procurement of critical items is critical to the schedule.

14 Michael Rowen 14 SXR Instrument FAC Critical Procurements Mono Optics: Grating substrates delivered, QC’ed and at ruling vender Ruled gratings due end September M1 Mirror due late June Coating at LLNL projected 4 weeks from availability gratings Monochromator System: Awaiting placement of order Projected delivery late November Exit Slit: Order in process Projected delivery mid December K-B Mirrors: Order in process Projected delivery late November Coating at LLNL projected 4 weeks from availability mirrors Assembly at LBNL K-B Mirror System: To be built at LBNL (same group as doing the AMO K-B system)

15 Michael Rowen 15 SXR Instrument FAC Summary SXR Schedule

16 Michael Rowen 16 SXR Instrument FAC Conclusions The SXR instrument is on a very tight schedule Only <2 week float to final installations during the January-February down. The critical item is the monochromator as it is in the 1 st hutch. The critical path item are the K-B mirrors in the 2 nd Hutch. The funding hurdles are past. There are no show stoppers at this time. SXR should be ready for beam by the end of February 2010.

17 Michael Rowen 17 SXR Instrument FAC End Presentation