1 / 17

SXR Instrument

SXR Instrument. Michael Rowen – Engineering Physicist June 9, 2009. Outline. SXR Consortium SXR Instrument Configuration End Stations Funding-Spending Schedule Conclusions. SXR Consortium.

tallys
Télécharger la présentation

SXR Instrument

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

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

  2. Outline • SXR Consortium • SXR Instrument Configuration • End Stations • Funding-Spending • Schedule • Conclusions

  3. 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 (http://lcls.slac.stanford.edu/sxr/SXRTechEndStations.aspx)or propose their own systems.

  4. SXR Instrument For overview see http://lcls.slac.stanford.edu/sxr/SXRTechOverview.aspx K-B Focusing Optics Photon Stopper Beam Dump Exit slit & Spectrometer Detector End Stations (user supplied) Transmission sample Chamber M1 Mirror & Grating System Single pulse shutter

  5. 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. 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. 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. Refocusing Optics SXR to clone AMO K-B system: • SXR End Station spot spec’ed at <10x10mm. • AMO K-B system has tighter specs. • Cost savings by copying AMO system. • Small modification mirrors to accommodate the different focal lengths.

  9. 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 End Stations Differential Pumping Laser in-coupling mirror

  10. End Stations End Stations proposed to date: (http://lcls.slac.stanford.edu/sxr/SXRTechEndStations.aspx) • 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. 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. 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. 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. 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. Summary SXR Schedule

  16. 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 1st hutch. • The critical path item are the K-B mirrors in the 2nd 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. End Presentation

More Related