1 / 12

Lithium Hydride Absorber Program

Lithium Hydride Absorber Program. A. Bross. LiH Discs. We want to 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

griffin-gross
Download Presentation

Lithium Hydride Absorber Program

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. Lithium Hydride Absorber Program A. Bross Alan Bross MICE CM - Daresbury June 7, 2008

  2. LiH Discs We want to 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 or Two LiH discs (50 cm diameter, 6.5 cm thick) • For use in MICE Step III.1 Alan Bross MICE CM - Daresbury June 7, 2008

  3. MICE Step III.1 Alan Bross MICE CM - Daresbury June 7, 2008

  4. Y12 National Security Complex • Only 1 vendor was found that would cast LiH • After some reflection (and some input from Chemists from Argonne Lab), the vendor decided casting LiH was too dangerous (production of H2 gas) • Negotiating with Y12 to fabricate these discs. • We are also investigating if the UK equivalent (AWE, plc – Atomic Weapons Establishment) can help • 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 - Daresbury June 7, 2008

  5. Instrumental Disc 12 Blind holes for housing thermo-couples Alan Bross MICE CM - Daresbury June 7, 2008

  6. The Set Up of the Thermal Test Foam board & gasket 1” copper tube with heaters High temp glass ceramic High temp low k gasket Machined LiH disc 12” dia steel ring Thermocouples X12 Flexible cooling tube Stainless steel base structure Alan Bross MICE CM - Daresbury June 7, 2008

  7. The Set Up Ready for the Thermal Test Alan Bross MICE CM - Daresbury June 7, 2008

  8. A Couple of Quick Checks • Heat Sink Check: • A coil of Parflex flexible thermoplastic polyethylene tubing, (¼”OD, 0.04” wall) was wrapped around the steel ring; • Chiller temperature was set at -10C; • Steel ring temperature was at -1C. • Heat Source Check: • 3 kapton flex heaters with R=157 ohms were glued to the inside of the copper sleeve evenly; • +123C was achieved on sleeve surface at applied voltage of 30V Alan Bross MICE CM - Daresbury June 7, 2008

  9. The Hardware Ready to take the Disc Alan Bross MICE CM - Daresbury June 7, 2008

  10. The MICE Energy Absorber Carbon-fiber Clamp Shells LiH Disc (~ 10 kg) The absorber is fastened by two M8 screws and nuts first. Alan Bross MICE CM - Daresbury June 7, 2008

  11. Installation in MICE This absorber is lowered down through the slot of the ss spool piece Alan Bross MICE CM - Daresbury June 7, 2008

  12. Procurement • Once DOE funds arrive at Fermilab (June) we will place the order • Final Cost Alan Bross MICE CM - Daresbury June 7, 2008

More Related