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STATUS OF THE GAS SYSTEM C. Garabatos, GSI

STATUS OF THE GAS SYSTEM C. Garabatos, GSI. Schedule Supermodule infrastructure Back-up system Bubblers. Schedule. 09-10.06 Partial commissioning with Ar and 4-5 supermodules 11.06 Purifier and Membrane modules Closed-loop operation with Ar possible from 12.06

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STATUS OF THE GAS SYSTEM C. Garabatos, GSI

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  1. STATUS OF THE GAS SYSTEMC. Garabatos, GSI Schedule Supermodule infrastructure Back-up system Bubblers

  2. Schedule • 09-10.06 Partial commissioning with Ar and 4-5 supermodules • 11.06 Purifier and Membrane modules • Closed-loop operation with Ar possible from 12.06 • 04.07 Full commissioning with Xe, analysis, recovery • Recovery plant lost! C. Garabatos, GSI

  3. On-detector hardware C. Garabatos, GSI

  4. First ideas (B.W.) Working on it... C. Garabatos, GSI

  5. The CO2 back-up system • Cumbersome, fires rarely, not écolo (~100 l/h continuous CO2 flow) • Decided to keep it anyway (O2) • Replace CO2 by N2 ? • ... C. Garabatos, GSI

  6. Concerns with bubblers • Bubblers produce pressure fluctuations of several mbar • Bubblers may produce an increasing overpressure with increasing flow (~10 l/h) • Bubblers may spill oil into the detector • Design our own! C. Garabatos, GSI

  7. Dynamics of pressure waves C. Garabatos, GSI

  8. 2nd prototype: many small holes • 1.5 mm holes • Should be perfectly aligned • Thin holes • Extra horizontal grid • Small and simple • Thanks to Aramark! C. Garabatos, GSI

  9. Performance Expect improvements with 3rd, professional prototype C. Garabatos, GSI

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