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Lithium Hydride Absorber Program Update

This report details the progress in procurement and testing of Lithium Hydride (LiH) components for MICE (Muon Ionization Cooling Experiment). Key updates include the acquisition of a 30 cm instrumented LiH disc for thermal property measurements, multiple small samples for radiation stability tests, and significant LiH discs and wedges intended for MICE Steps III and IV. Updates also address the manufacturing process at the Y12 National Security Complex, quality testing and inspection, and current machining schedules, projected to complete by early November.

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Lithium Hydride Absorber Program Update

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  1. Lithium Hydride Absorber ProgramUpdate Alan Bross MICE CM Sofia – October 5th , 2010

  2. LiH Discs We will Procure: • An instrumented LiH disc (30 cm diameter, 4 cm thick) for measuring thermal properties • Two small (1.25” diameter X 0.25” thick) samples for radiation stability tests • One LiH disc (50 cm diameter, 6.5 cm thick) • For use in MICE Step III.1 - IV • Two LiH wedges • For use in MICE Step IV? Alan Bross MICE CM - Sofia October 5, 2010

  3. MICE Step III.x or IV Alan Bross MICE CM - Sofia October 5, 2010

  4. Y12 National Security Complex • Y12 is producing the LiH • Produced by Hot Isostatic Pressing (150 oC, 30,000 psi) • Will use existing mold • Final parts will be • Tested for Chemical composition and purity • Radio-graphed to ensure no voids • Machined to size • Dimensional inspection • Coated with epoxy completely Alan Bross MICE CM - Sofia October 5, 2010

  5. The MICE Energy Absorber • New Hanger Arrangement • 3 SS straps • 1 Machined SS clamp • 45 cm diameter & 65 mm thick Alan Bross MICE CM - Sofia October 5, 2010

  6. Procurement - Disks • Current Schedule • All disks are complete except for some final machining on the 12” disk that is to be instrumented. • Problem with a few of the holes • Other disks are in inspection • All machining should be done in 1 week • Then 1 week to do the paralene coating • Ship by November 1 Alan Bross MICE CM - Sofia October 5, 2010

  7. Procurement - Wedges Alan Bross MICE CM - Sofia October 5, 2010

  8. Wedge 1 – 90o Alan Bross MICE CM - Sofia October 5, 2010

  9. Wedge - Procurement • We have ordered a 90 wedge, but it will come in two pieces • Need to develop hanger • Run with full or ½ wedge • Wedge machining has not yet started • I do not have a delivery date yet. Alan Bross MICE CM - Sofia October 5, 2010

  10. Final ½ Wedge Alan Bross MICE CM - Sofia October 5, 2010

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