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Test Lab Cryogenic Requirements

Test Lab Cryogenic Requirements. Kirk Davis Director’s Review of Cryogenic Capacity 26 May, 2010. Test Lab Cryogenic Loads. Cryomodule Test Facility (CMTF): Cryomodule cooldown, static, and RF heat loads. 4 to 6 week test cycle

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Test Lab Cryogenic Requirements

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  1. Test Lab Cryogenic Requirements Kirk Davis Director’s Review of Cryogenic Capacity 26 May, 2010

  2. Test Lab Cryogenic Loads • Cryomodule Test Facility (CMTF): Cryomodule cooldown, static, and RF heat loads. 4 to 6 week test cycle • Vertical Test Area (VTA): SRF cavity testing, materials testing, component testing. 2 to 3 day test cycle • Hall D Solenoid Testing • Test Lab Service Supply LN2, N2, and He

  3. 12GeV Cryomodule Production Load Scheduling • The CTF can meet any foreseeable VTA load without a cryomodule in the CMTF. • The VTA runs at half-capacity on the day of a CMTF cryomodule cooldown. • The VTA is shut down the day of a CMTF cryomodule fill and two subsequent days are required for full CTF recovery (usually scheduled over a weekend). • With a cold cryomodule in the CMTF, the available CTF supply to the VTA will be 3/4 of scheduled demand. • To meet scheduled demand and improve efficiency, Cryo has proposed that a 10,000 L LHe dewar integrated with a properly designed sub-cooler be installed in place of the existing 3,800 L LHe Dewar.

  4. 12GeV Cryomodule Production Loads

  5. Hall D Solenoid Testing • Physics is scheduled to test a superconducting solenoid beginning around July, 2010. A total of four tests are planned, each lasting approximately 3 weeks with 2-3 months between tests. • Static, dynamic, and cooldown loads are expected to resemble those of a cryomodule in the CMTF.\ • The LHe required for this testing will be supplied from CTF coldbox #3, dedicated to this load. Coldbox #2 will continue to supply VTA and CMTF as usual.

  6. N2 Loads • Existing Test Lab 3000 gal dewar supplies warm gas and LN2 to the test lab. • Warm gas is used for test lab service distribution and EEL building. • LN2 is used for automated cryo-cycling or cold-shocking of production parts and for filling portable dewars. • LN2 is proposed for pre-cooling Hall D solenoid. Estimated load of 20 g/s for cooldown, 7 g/s static; CTF will supply this LN2. • Existing supply dewar must be refilled at least once per week to meet demands. Maintaining tanker truck access is important.

  7. On The Horizon • JLAMP, if funded, will look like an extension of the 12GeV production run • ILC R&D should continue for the foreseeable future • FRIB cavity production • Proposed cavity production scale larger than 12GeV • Quarter-wave structures may exceed the size capacity of all VTA dewars except D5 • Some cryomodules may exceed the height capacity of the CMTF • Project X • Spoke cavities and ILC type elliptical cavities • Injector Test Cave upgrade

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