Photo KEK March-28, 2002

MICE Absorber and Test Cryostat

Shigeru Ishimoto (KEK)

Shoji Suzuki (KEK)

Edgar Black (IIT)

Mary Anne Cummings (NIU)

(1) MICE Absorber Present Status(2) MICE Absorber Test Process and Test Cryostat(3) LH2 Level Sensor and Thermometers

MICE Meeting

at CERN

March-29, 2004

MICE Absorber Present Status

MICE Absorber

MICE Absorber

MICE Absorber

L-H2 Level Sensors Stay Off Lines

H2 Monitor FlangesNew

MICE Absorber

March-24, 2004

MICE Absorber Test Flange

March-24, 2004

MICE Absorber Test Process and Test Cryostat

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

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

RAL

(6) Pressure Test at room temperature

(7) Cooling Test W/gas-He

(8) Cooling Test W/L-H2

(4) Pressure Test at rum temperature with Windows

(5) Pressure Test W/gas He at 20K temperature with Windows At KEK (or FNAL)

(2)&(5) Needs Test Cryostat

(A) Test Cryostat at MTA

L-H2 Test

(B) New Horizontal Test Cryostat

Cold gas-He Test

MICE Absorber Test Cryostat (Plan)

MICE Absorber Test Cryostat (Plan)

MICE Absorber Test Cryostat (Plan)

LH2 Level Sensor and Thermometers

CX-1050SD

LH2 Level Sensor and Thermometers

LH2 Level Sensor

Needs LH2 Level Monitor

- Cooling Experiment

- Operation Requirement

- Safety Requirement

No Space for Capacitance Level Sensor (AMI) D= 1/2”, L > 5”

Level Monitor by Resistance Thermometer with high current I ~ 10 x INORMAL

T = TB+ T, R = RB+ R

T = TB , R = RB

Liquid Level

Resistance Thermometer

Calibration of LH2 Level Sensor

x5

Down parts are for the Solid H2 Target

Thermometers and Level Sensor in LH2

Thermometers in Vacuum

Wiring and Connecters

32 pin Connecter on KF40

32 pin Connecter (1 of 2) on KF40

Thermometers and Level Sensor in LH2

LH2

Wiring and Connecters

( I )

Thermometers in Vacuum

Wiring and Connecters

( II )vacuum (CX-1050SD except “LH2 TOP”)

Summary

(1) MICE absorber(No.1) will arrive soon.(2) 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.

Thermometers and Level Sensor in LH2

Thermometers in Vacuum

Wiring and Connecters

LH2