SAXS/WAXS Conversion for Beamline Engineering Review
Beamline Layout Beamline Optics Shutter & Slits PSS Front End Shield Wall Microscope Room XRay Hutch Instrument Rack
Beamline Optics Multilayer Mono Double Be Window PEEM2 Branchline M1 Mirror Primary Slits Mono BPM M1 BPM Brems. Collimator
Slits & Shutter Primary Scatter Slits Secondary Scatter Slits Shutter Assembly Ion Pump & Valve Tree Gate Valve Mica Window
End Station Gimble SAXS Detector WAXS Detector Flight Tube Sample Stage Detector Gantry Beam-Stop Gantry Detector Platform Sample Platform Shutter Slits Valve Slits
Major Beamline Modifications Add Double Beryllium Window Move BPM Downstream Install Mono Where BPM Was Remove Carbon Filters Raise Mirror and Slits 6mm Remove Downstream Be Window & Valve Tree Install Shutter Where Be Window Was Install ADC Slits Upstream of Shutter & Cut Small Clearance Hole in Microscope Room Wall Install ADC Slits Just Inside Hutch Install Mica Window After Final Slits
Current State Empty Spool PEEM BL BPM Brems. Collimator Carbon Filters M1 Mirror
PEEM Spool Support Replacement Remove Stand Replace With Uni-Strut
Critical Points & Apertures FrontEnd Aperture Double Be Window Multilayer Mono M1 Mirror Primary Aperture Primary Slits Shutter Secondar y Slits Detector Position (m) to 36.3 Vertical Opening (mm) 8 Horizontal Opening (mm) 8 Material Be 2 X 125μm Mo/B 4 C d = 2 nm Stainles s Steel
Double Be Window Design
Be Window Stress Analysis 125μ Be Window Thickness 33.6°C Temperature Rise 113MPa Maximum Stress 3X Safety Factor
Multilayer Mono Design Goals Optimized for 10 keV Limited scanning range Side water cooled No in-vacuum water joints Compact footprint
Mono Chamber Electrical Feedthroughs Alignment Viewport BPM Water-Tube Feedthroughs Goniometer CFF 6” Viewports
Mono Interior Rotating Arm Radiation Shroud Water Tube Aperture Beam Scraper Cooled 1 st Crystal Floating 2 nd Crystal
Kinematic Crystal Mount LVDTs Spring Clamps Stabilizing Springs Cantilevered Mounts Pico-Motors Tungsten- Carbide Rods
Heating of First Multilayer
Tangential Surface Deformation
Cool SideHot Side
Water Cooled Shutter NM Laser Shutter LSX055 Power Dissipation: 45-65W Electrical Feedthrough Cooling Block Shutter Water Tubing CFF 8” Viewport