SNS INSTRUMENTS OVERVIEW .


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2. . . . The Spallation Neutron Source. The SNS will start operation in 2006At 1.4 MW it will be ~8x ISIS, the world\'s driving beat spallation sourceThe top neutron flux will be ~20
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HYSPEC IDT Meeting SNS INSTRUMENTS OVERVIEW R. K. Crawford Instrument Systems Senior Team Leader September 10, 2004

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The Spallation Neutron Source The SNS will start operation in 2006 At 1.4 MW it will be ~8x ISIS, the world\'s driving beat spallation source The pinnacle neutron flux will be ~20 – 100x ILL SNS will be the world\'s driving office for neutron diffusing It will be a short drive from HFIR, a reactor source with a flux similar to the ILL

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Target Region Within Core Vessel Target Module with jumpers Outer Reflector Plug Target Moderators Core Vessel water cooled protecting Core Vessel Multi-channel rib

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Instrument Layout SNS SING UNIV NUC-PH CANADA Unfunded 11A - Powder Diffractometer – SNS Funded – Commission 2007 7 - Engineering Diffractometer – IDT CFI Funded – Commission 2008 6 - SANS – SNS Funded – Commission 2007 12 - Single Crystal Diffractometer – DOE Funded (SING) – Commission 2009 5 - Cold Neutron Chopper Spectrometer – IDT DOE Funded – Commission 2007 13 - Fundamental Physics Beamline – IDT DOE Funded – Commission TBD 4B - Liquids Reflectometer – SNS Funded – Commission 2006 14B - Hybrid Spectrometer – DOE Funded (SING) – Commission 2011 4A - Magnetism Reflectometer – SNS Funded – Commission 2006 15 – Spin Echo 3 - High Pressure Diffractometer – DOE Funded (SING) – Commission 2008 17 - High Resolution Chopper Spectrometer – DOE Funded (SING) – Commission 2008 18 - Wide Angle Chopper Spectrometer – IDT DOE Funded – Commission 2007 1B - Disordered Mat\'ls Diffractometer – DOE Funded (SING) – Commission 2010 2 - Backscattering Spectrometer – SNS Funded – Commission 2006

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Instrument Status Final plan audit for 5 SNS Project instruments Sept 28-Oct 1 Installation has begun Evacuated dissipating tank for backscattering spectrometer Core vessel embeds First 3 prepared for dispatching April 2006 CNCS and ARCS advance survey held in August – both booked for fruition by end of FY2006 SNAP and SEQUOIA preparatory outline audit held in May – both right now experiencing pattern audit and planned for finish in 2008 Other instruments in different phases of plan

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Instrument Installation has started! 13 th March

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Installation

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Core Vessel Inserts Core vessel embeds in different phases of manufacture and get together

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SNS Component Development/Support Data Acquisition System Detectors Neutron Choppers Sample Environment Analysis Software

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Data Acquisition Satellite Computers: Chopper, Sample Environment and so forth. Preprocessor Cluster Chopper Interface Accelerator Interface Control Computer External Interfaces Detector Electronics Detectors Soft Real Time Fire Wall File Server Real Time Basic equipment and programming segments for information procurement all exist in model frame. Framework configuration is standard to all instruments. Coordinated framework exhibited gave at April EFAC meeting

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Detector Selections Reflectometers (2) BNL 20 cm x 20 cm 3 He Area PSDs Backscattering Spectrometer 15 cm x 1.3 cm 3 He LPSDs ARCS Spectrometer 100 cm x 2.5 cm 3 He LPSDs Powder Diffractometer and VULCAN LiF/ZnS scintillator screens combined with wavelength moving filaments and phototubes SCD and MANDI Anger camera glimmer identifier SNAP Anger camera sparkle indicator SEQUOIA Spectrometer 120 cm x 2.5 cm 3 He LPSDs CNCS Spectrometer 3 He LPSDs SANS 100 cm x 0.8 cm 3 He LPSDs, 1 m x 1 m cluster

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Neutron Choppers Fabrication and gathering of T0 chopper for powder diffractometer in progress. BW Choppers for Backscattering Spect. Five 60-Hz transmission capacity choppers have been conveyed by Astrium, and have finished testing in the chopper lab at Argonne. Second acquisition for 60-Hz data transfer capacity choppers has been granted to Revolve. These will be attractive bearing choppers.

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Sample Environment Activities Standards Documented gauges for test environment mechanical interfaces to instruments Communication conventions created and institutionalized Functioning correspondence framework tried Prototype improvement Procuring a few gear things to create test holders, cryostat tails, and so forth SBIR/STTR with Containerless Research, Inc to create mechanized specimen changing at low and high temperatures Developing quick change cooler in a joint effort with Penn State

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Sample Environment Activities – cont\'d Basic suite of general example environment hardware will be secured in FY06-FY07 utilizing working spending Inventory will be sufficient to address all issues for standard example situations Operating staff satisfactory to bolster requirements for every single working instrument will be increase starting in FY2005 Working with client gatherings to distinguish needs and seek after advancement of hardware for particular specimen situations White paper and draft strategy on attractive field obstruction issues Self-repaid high-field magnets

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Analysis Software SNS is accepting a dynamic part in the advancement of information examination programming The NESSI workshop to archive prerequisites for such programming was held at SNS October 13-15, 2003 Draft necessities report arranged SNS group pioneer for logical calculation (Steve Miller) on board Preliminary usage arrange arranged Extensive worldwide coordinated effort Part of group is now at work

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Present Experimental Facilities Organization

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Summary 16 instruments in different phases of plan, acquirement, and establishment (5 of them in SING Project) Common segments foundation improvement is dynamic – information obtaining, finders, choppers, test environment, investigation programming Starting to change staffing blend to bolster establishment and operation First instruments start appointing in 2006

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