1. Absorber Production Status Contents (1)MICE absorber design/status (2)MICE absorber instrumentation (3)Schedule (4)Summary Sasanqua at KEK on 13-DEC,’09 Shigeru Ishimoto KEK MICE CM23, HIT in Harbin China, 13-17 Jan, 2009

2. machining after welding heater 2 test flanges

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

4. Pipe-welding support flange

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

6. G-10 (x8) t=1, W=25, L=90 mm Total ~ 0.2 W SS, t=1 Screws on AFC Magnet 76.5 34 SS  15.7 AL  14.8 34 From Absorber Small flange and G-10 support

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

8. Flange-Body Tolerance In 1.0 Gap 0.5

9. Prototype absorber test at KEK

10. 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) I m =0.1 mA; 101,103,105,107,109 I m =1 mA; 102,104,106,108,110 Temperature & level sensors in the absorber In LH2 over heating mode in gas

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

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

13. Instrumentation Temperature Readout Lake Shore Thermometer Readout 218S 8 Cernox (4 inside, 4 outside) Heater controller Lake Shore Heater controller 332S 1 Cernox (bottom) + 1 Heater ( 1 spare) 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 X 1 set

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

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

16. Summary (1)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. (2)Thermometer/level sensors inside and outside absorber body were ordered by LBNL to save extra cost. Thanks again! (3)Other parts will arrive at KEK by March-2009. (4)Thin absorber flanges will be set at KEK. First flanges will be arrived from Univ. of Mississippi.