MICE Absorber Test Cryostat

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MICE Absorber and Test Cryostat
MICE Meeting at CERN March-29, 2004
Shigeru Ishimoto (KEK) Shoji Suzuki (KEK) Edgar
Black (IIT) Mary Anne Cummings (NIU)
Photo KEK March-28, 2002
(1) MICE Absorber Present Status (2) MICE
Absorber Test Process and Test Cryostat (3) LH2
Level Sensor and Thermometers
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MICE Absorber Present Status
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MICE Absorber
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MICE Absorber
5
MICE Absorber
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Stay Off Lines
L-H2 Level Sensors
New
H2 Monitor Flanges
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MICE Absorber
March-24, 2004
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MICE Absorber Test Flange
March-24, 2004
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MICE Absorber Test Process and Test Cryostat
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MICE Absorber Test Process
3-5 Bodies by (KEK) 6-10 Windows by
(USA)
20K Gas-He Test at (KEK)
Test check absorbers assemble in MICE at RAL
L-H2 Test at MTA with a Spare Body and Windows
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Detail Test Process

• KEK
• (1) Pressure Test at room temperature with Dummy
  Windows
• (2) Pressure Test with Dummy Windows 20 K
  gas-He

(3) At US/FNAL Pressure Test at room temperature
(4) Pressure Test at rum temperature with
Windows (5) Pressure Test W/gas He at 20K
temperature with Windows At KEK (or FNAL)
RAL (6) Pressure Test at room temperature (7)
Cooling Test W/gas-He (8) Cooling Test W/L-H2
(2)(5) Needs Test Cryostat (A) Test Cryostat
at MTA ? L-H2 Test (B)
New Horizontal Test Cryostat
? Cold gas-He Test
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MICE Absorber Test Cryostat (Plan)
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MICE Absorber Test Cryostat (Plan)
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MICE Absorber Test Cryostat (Plan)
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LH2 Level Sensor and Thermometers
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LH2 Level Sensor and Thermometers
CX-1050SD
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LH2 Level Sensor
Needs LH2 Level Monitor - Cooling Experiment
- Operation Requirement - Safety Requirement
No Space for Capacitance Level Sensor (AMI)
D 1/2, L gt 5
Resistance Thermometer
T TB dT, R RB dR
Level Monitor by Resistance Thermometer with high
current I 10 x INORMAL
Liquid Level
T TB , R RB
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Calibration of LH2 Level Sensor
x5
Down parts are for the Solid H2 Target
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Wiring and Connecters
Thermometers and Level Sensor in LH2
32 pin Connecter on KF40
Thermometers in Vacuum
32 pin Connecter (1 of 2) on KF40
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Wiring and Connecters ( I )
Thermometers and Level Sensor in LH2
LH2
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Wiring and Connecters ( II )
vacuum (CX-1050SD except LH2 TOP)
Thermometers in Vacuum
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• Summary
• MICE absorber(No.1) will arrive soon.
• Horizontal test cryostat will be designed and
  fabricated at KEK.
• (3) MICE absorbers will be tested at KEK W/ cold
  gas-He at 10-20K.
• (4) MICE absorbers will be shipped to RAL with
  sensors and real windows (ready to use). ?
  PROPOSE
• (5) L-H2 test at FNAL/MTA with a spear MICE
  absorber.
• ? PROPOSE
• (6) Thermometers/LH2 level sensors and
  wiring/connecters are existing.

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Wiring and Connecters
Thermometers and Level Sensor in LH2
LH2
Thermometers in Vacuum