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MICE Collaboration meeting at Berkeley 9 – 12 February 2005 AFC Module progress Presented by

MICE Collaboration meeting at Berkeley 9 – 12 February 2005 AFC Module progress Presented by Wing Lau -- with input from AFC group members. Status of Progress. Status of Progress. Comp. Status of Progress. Heater/thermometer assemble for MICE absorber. AL. block. CX-1050-SD.

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MICE Collaboration meeting at Berkeley 9 – 12 February 2005 AFC Module progress Presented by

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  1. MICE Collaboration meeting at Berkeley 9 – 12 February 2005 AFC Module progress Presented by Wing Lau --with input from AFC group members

  2. Status of Progress

  3. Status of Progress

  4. Comp.

  5. Status of Progress

  6. Heater/thermometer assemble for MICE absorber AL. block CX-1050-SD HTR-25-100

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

  8. 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 

  9. Wiring of thermometers, level sensor & heaters • 4 wires measurement for thermometers and heaters • AC Bridge 370S with16ch Scanner Max. 16 CH • 6 for absorber (8  6, 2 at top ) 2 for windows 2 for LH2 pipes 2 for C-He pipes 3 for Cryocooler 1 for magnet bore

  10. MICE absorbermonitor/control (R&D at KEK, plan) LAN PC IEEE-488/RS232C cc1mA DCPS DCPS DCPS Keithley 2700 0.1mA Inside Abs. READ OUTS CRYOCOOL HTR Abs. HTR-UP Abs. HTR-DWN 16 CX-1050SD’s Abs. LEVEL CX-1050 3-HTR 5-CX-1050 CRYOSTAT P&VAC Sensors

  11. 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

  12. 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

  13. Status of Progress

  14. Force profile received from Yury in January 2005

  15. Case 1: Forces (in MN) for Flip mode, Stage 6, p=240 MeV/c, β=42cm MICE cooling channel FEA model with the loading and boundary conditions

  16. Max reaction force in Y direction at the support base is 44548 N Case 1: FEA result

  17. Super-module reaction forces

  18. Rail – mounting concept Combined Roller Bearing

  19. Force transfer concept - Y

  20. Status of Progress

  21. Ulisse Bravar • 26 January 2005 • This note presents the optic solutions for MICE Step III for a large number of different running conditions. • Two gap distances between the two spectrometers are considered, 800 mm and 1600 mm. • For the 800 mm gap, a table with forces and peak fields on coil surfaces for the worst case scenarios is attached, courtesy of H. Witte • For the 1600 mm gap, all currents in the MICE coils are equal to or less than the worst case currents of the 800 mm gap. • Hence, for the 1600 mm case, forces and peak fields are also lower than the ones in the 800 mm case. • In conclusion, currents, peak fields and forces both in the 800 mm and in the 1600 mm gaps are within tolerances.

  22. Status of Progress

  23. Status of Progress

  24. H Detector 2 H Detector 2 Hydrogen System Baseline layout High level vent High level vent High level vent High level vent Vent Vent outside outside Non return Non return flame flame valve valve Vent manifold Vent manifold Vent manifold Vent manifold arrester arrester 0.1 bar 0.1 bar H H Detector Detector Hydrogen zone 2 Hydrogen zone 2 2 2 Extract hood Extract hood VP2 VP2 PV8 PV8 P1 P1 P P Metal Hydride Metal Hydride P P PV7 PV7 storage unit storage unit P P (20m (20m capacity) capacity) 3 3 PV2 PV2 PV1 PV1 Chiller Chiller /He /He 1 bar 1 bar ater Unit ater Unit Tbed Tbed Buffer Buffer Hydrogen Hydrogen PV3 PV3 1 m 1 m 3 3 vessel vessel supply supply PV4 PV4 P P Fill valve Fill valve P P HV1 HV1 Coolant Coolant Out In Out In P2 P2 P P 0.5 bar 0.5 bar 0.9 bar 0.9 bar P3 P3 HV2 HV2 P P P P Purge valve Purge valve P P P P P P H H Detector Detector 2 2 Safety window Purge valve Purge valve HV3 HV3 Absorber window 0.9 bar 0.9 bar PV6 PV6 Nitrogen Nitrogen Helium Helium supply supply supply supply 0.5 bar 0.5 bar VP1 VP1 - - Pressure Pressure Non-return valve Pressure gauge Pressure regulator Pressure Bursting disk Bursting disk Valve Valve P P P P VP VP Vacuum pump Vacuum pump relief valve relief valve

  25. Model

  26. Absorber thermal model

  27. FEA result summary

  28. Absorber test cryostat ATC-002 (dimensions) MICE W W D2; Cryocooler flange (needs larger Cryocooler flange for pips) D1 H2 H1

  29. July 05 Oct 05 Jan 06 Apr 06 July 06 Oct 06 Jan 07 Apr 07 Absorber R & D Thermal performance test on 1st absorber (KEK) Thermal performance test on 2nd absorber Thermal performance test on 3rd absorber Hydrogen system R&D Phase 1 deliverable fully installed & tested Initial design KEK test cryostat comes to RAL Prelim. D & S review Detailed design & procurement Permission to operate Installation & commissioning Test programme

  30. Lab G Solenoid Power Supplyand Quench Protection

  31. The MICE Coupling Coil Power Supplywith Quench Protection

  32. The MICE Coupling Coil Power Supplywith Quench Protection Note: The coil is shown split into two parts. The coil may be split into three or four parts instead of two parts.

  33. Detector Magnet Power Supplies Match 1 Match 2 End 1 Center End 2

  34. Concluding Comments on Quenches • The focusing and coupling magnets will have passive quench protection. The detector magnet will likely have an active quench protection system. • The three focusing magnets should be in series. • Each coupling magnet should have its own power supply to reduce the charge time. • Like detector magnet coils can be put in series. • A coupling coil quench will quench the rest of MICE. A focus coil quench will not quench a coupling coil.

  35. Task Description • An AFC Module window that was damaged during machining was used to test a non-contact measurement method. A standard CMM was also used for comparison. All measurements were made on both sides of the window with the thickness being determined indirectly from the two sets of data. Measurements consisted of 12 radial slices at 15º increments. The center 80 mm of the window is damaged. • Measurement Methods • Standard CMM with low contact force • Vision machine with medium magnification lens • Vision machine with high magnification (not yet complete) • Summary of Results • Best data obtained from CMM measurement • Vision machine data shows more scatter • Good portion of window is within 40 mm of design thickness

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