1 / 27

Absorber R&D and Instrumentation

Absorber R&D and Instrumentation. Shigeru Ishimoto KEK and MICE Japan. MICE Meeting at FNAL, Jun 8-11, 2006. “Sakuraso” Japanese Primula and Green House. MICE Absorber (present version). Room Temp. Magnet Bore. L-He/N2 OUT. Thermometers CX-1050-SD. L-H2 OUT. L-H2 Level Sensor

shona
Download Presentation

Absorber R&D and Instrumentation

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. Absorber R&D and Instrumentation Shigeru Ishimoto KEK and MICE Japan MICE Meeting at FNAL, Jun 8-11, 2006 “Sakuraso”Japanese Primula and Green House

  2. MICE Absorber (present version) Room Temp. Magnet Bore L-He/N2 OUT Thermometers CX-1050-SD L-H2 OUT L-H2 Level Sensor CX-1050-SD (20 L) L-H2 IN L-He/N2 IN 2-Heaters HTR-25-100

  3. Absorber Test Cryostat & Test Absorber

  4. Condenser & Level Sensor 192 KF40 L=100 Pipe For Test (0.2 L) 48 pin feedthrough on KF40

  5. L-H2/LHe Level sensor in absorber DC ~mA DC Current for L-H2/LHe should be optimized (KEK R&D).  V4 V3 LHe LH2 CX-1050-SD 

  6. LH2/He Level Sensor KF40 L=100 Extension Tube 2 cm CX-1050-SD X5 (serial) 2 cm 2 cm 2 cm CX-1050-SD X1 calibrated (4 wires) KF40 + 48 pin feedthrough

  7. Cryocooler & Condenser Heat Links 1st stage Condenser Heater HTR-25-100 (100W) LH2 IN/OUT 2nd stage LH2 Condenser LH2/He Level Sensor In Extension KF40 + 48 pin feedthrough

  8. Absorber Test Cryostat MLI H2 TANK 2m3 (1.0-1.3 bar) ~1 L

  9. Absorber DAQ System LakeShore 218S Cernox x8 Keithley 2700 DMM MKS 0-2000 Torr Level #1-5 VAC. Gauge . . . MONITOR (LabView) Shoji Suzuki Keithley 2700 DMM LakeShore 218

  10. Cryostat Test Results 0.368 l/h  (3.23 W) (MICE; 57 hr for 20 l) Empty 0.20 l/h  (1.77 W) 4 hrs; 300K  20 K Cryocooler OFF

  11. Level Sensor Test Results X100 X100

  12. L-H2 Level Sensor Test ~ 3 mW each ~ 0.2 mW Good linearity in L-H2 It will be tested in gas phase ~ 0.75 mW Thermometer 0.01mA

  13. Revision of Absorber Parts Motivation Effect of cryocooler selection Smaller packing size Easy setup Wiring path near absorber Remove risk of transition joint Accuracy of pipe assemble 1 more joint between cryocooler and absorber without transition joint • Changed or new parts • Transition Joint  Mini flange with In-seal • G-10 support of absorber & pipes • 30 pin feedthrough at LH2 Inlet pipe • L-He IN & OUT; straight pipes • Assemble & welding method of pipes

  14. G-H2 OUT Mini In-Flange He/N2 OUT G-10 Support Absorber & Pipes  L-H2 IN He/N2 IN Tee 30 Pin Feedthrough

  15. A-A’ (22.5 deg.) He/N2 OUT G-H2 OUT Straight Pipes Tee  L-H2 IN He/N2 IN 30 Pin Feedthrough

  16. Mini In-Flange No-Transition G-10 Support Absorber & Pipes cut after welding Heater • L-H2 IN

  17. Mini In-Flange; SS/Al joints Mini Rotational Flange SS In In AL LH2 IN/OUT If it needs rotation He IN/OUT

  18. 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 34 Screws on AFC Magnet AL f14.8 From Absorber

  19. 30 Pin Feedthrough In

  20. Wiring of thermometers, level sensor & heaters • 4 wires measurement for thermometers and heaters • LakeShare x2 218S Max. 16 Cernox 6 for absorber (2 on top )  5 8 wires for level sensors Total 32 wires inside absorber  28 2 for windows 2 for LH2 pipes 2 for C-He pipes 3 for Cryocooler  2 1 for magnet bore 3 heaters Total 52 wires in vacuum 30 Pin Feedthrough 48 Pin Feedthrough at Vacuum

  21. MICE absorbermonitor/control (plan) ALRAM, VALVES, CRYOCOOLER-OFF, HEATER-OFF… Programmable Controller or LOGIC LAN DIRECT CONTROL DIO Contacts PC / WS IEEE-488 DMR 1-6 2CH AC Bridge 370S DCPS DCPS DCPS cc1mA Keithley/ADC Inside Abs. Abs. HTR-UP Abs. LEVEL CX-1050 16 CX-1050SD’s READ OUTS CRYOCOOL HTR Abs. HTR-DWN 3-HTR 5-CX-1050 CRYOSTAT P&VAC&LEVEL Sensors

  22. (EXCEL FILE) http://ishimotopc2.kek.jp/MICE-Instruments.xls

  23. Thermometers in absorber AC Bridge 370S 3716; 16ch Scanner CX-1050-SD

  24. LakeShore Cartridge Heater

  25. Detail heater assemble for MICE absorber HTR-25-100 ¼” Hole STOPPER

  26. Digital meter relay for MICE Absorber/Cryocooler DMR; DIGITAL METER RELAY (Digital comparator) Watanabe (Japan) for example INPUT WSM-452HR-R3NNNX-22VD ; DC 0-199.99 mV WSM-452HR-R3NNNX-32VD ; DC 0-1.9999 V WSM-452HR-R3NNNX-42VD ; DC 0-19.999 V WSM-452HR-R3NNNX-52VD ; DC 0-199.99 V OUTPUT( 4.5 digit set) HI-relay (NC, HO) LO-relay (NC, NO) Scaling; A-B (V)  C-D (Unit) DC24V

  27. Summary • Absorber R&D at KEK • - Level sensor test is going • - Absorber L-H2 cooling will start soon • Revision of Absorber Parts • - New parts - - - Mini In-Flanges, G-10, feedthrough, tee … • - Pipe assemble, installation tools • (3) Absorber Instrumentation Detail • - Selection of Cernox read out, with or without heater control • - Needs monitor/control program

More Related