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Absorber Production Status

Absorber Production Status. Shigeru Ishimoto KEK MICE CM23, HIT in Harbin China, 13-17 Jan, 2009. Contents MICE absorber design/status MICE absorber instrumentation Schedule Summary. Sasanqua at KEK on 13-DEC,’09. heater. machining after welding. 2 test flanges.

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Absorber Production Status

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  1. Absorber Production Status Shigeru Ishimoto KEK MICE CM23, HIT in Harbin China, 13-17 Jan, 2009 • Contents • MICE absorber design/status • MICE absorber instrumentation • Schedule • Summary Sasanqua at KEK on 13-DEC,’09

  2. heater machining after welding 2 test flanges

  3. Body; cut from single Al-block oversize before finishing

  4. Pipe-welding support flange

  5. Tee and 30 pin feedthrough to absorber LH2 In In seal Kyocera 30 pin feedthrough

  6. Small flange and G-10 support G-10 (x8) t=1, W=25, L=90 mm Total ~ 0.2 W 34 SS f15.7 6.5 7 SS, t=1 Screws on AFC Magnet 34 AL f14.8 From Absorber

  7. Flange of MICE absorber Tolerance between flange and body: 0.1-0.3 mm Design window; Oxford Design flange; KEK Machining ; Mississippi

  8. Flange-Body Tolerance In 1.0 Gap 0.5

  9. Prototype absorber test at KEK

  10. Temperature & level sensors in the absorber In LH2 10 Cernox 1050SD Calibrated 4- 300K 4 wires; AB101, 102, 105, 109,110 2 wires; AB103,104,106,107,108 (Total 5*4 + 5*2 = 30 wires) Im=0.1 mA; 101,103,105,107,109 Im=1 mA; 102,104,106,108,110 over heating mode in gas

  11. Sensor and heater (overall) HTR-25W-100W VAC/LT tight 25.4 VAC. tight

  12. Sensor blocks 20 5 2 cernox inside absorber X 5 19 2 or 4 x 0.14 mm2 ETFE cable CX-1050-SD cernox for L-H2 pipes X 2 16 20 cernox for L-N2 pipes X 2

  13. Instrumentation Temperature Readout Lake Shore Thermometer Readout 218S 8 Cernox (4 inside, 4 outside) X 1 Over Current Readout (LH2 Level Sensor) DC PS (constant current); 0 – 1 mA(max) Keithley 2700 DMM; 20 CH 5 Cernox (5 inside) + 2 Heater Volts X 1 set Heater controller Lake Shore Heater controller 332S 1 Cernox (bottom) + 1 Heater ( 1 spare) X 1

  14. Status of Absorber parts (*) Thank Mike for supplying Cernoxes (Yoshitaka, Makoto and Shigeru)

  15. Absorber Schedule 12-Mar MIRAPRO Test Area will move to North-CH

  16. Summary • Ordering of the first absorber body was delayed 2-3 month from original expectation. It will make tight schedule of preparation and test at KEK. • Thermometer/level sensors inside and outside absorber body were ordered by LBNL to save extra cost. Thanks again! • Other parts will arrive at KEK by March-2009. • Thin absorber flanges will be set at KEK. First flanges will be arrived from Univ. • of Mississippi.

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