June 12, 2003 JHC CRYOGENIC TESTING PREPARATION The racetrack coil requires a cooldown to and power...

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June 12, 2003 JHC CRYOGENIC TESTING PREPARATION • The racetrack coil requires a cooldown to and power testing at a temperature near 77K • A 12 x 12 x 12” aluminum test module has been fabricated to qualify pedestrian insulation types for the above requirement • 4” of layered spun glass duct board performed adequately without dew formation difficulties • Primary lesson learned: A thin gas layer is desirable between the liquid tray and the underlying insulation • Next step: Collaborate with EE’s on power feedthroughs

Transcript of June 12, 2003 JHC CRYOGENIC TESTING PREPARATION The racetrack coil requires a cooldown to and power...

Page 1: June 12, 2003 JHC CRYOGENIC TESTING PREPARATION The racetrack coil requires a cooldown to and power testing at a temperature near 77K A 12 x 12 x 12” aluminum.

June 12, 2003 JHC

CRYOGENIC TESTING PREPARATION

• The racetrack coil requires a cooldown to and power testing at a temperature near 77K

• A 12 x 12 x 12” aluminum test module has been fabricated to qualify pedestrian insulation types for the above requirement

• 4” of layered spun glass duct board performed adequately without dew formation difficulties

• Primary lesson learned: A thin gas layer is desirable between the liquid tray and the underlying insulation

• Next step: Collaborate with EE’s on power feedthroughs

Page 2: June 12, 2003 JHC CRYOGENIC TESTING PREPARATION The racetrack coil requires a cooldown to and power testing at a temperature near 77K A 12 x 12 x 12” aluminum.

June 12, 2003 JHC

INSULATION TEST MODULE

12” x 12” x 12” Test Module

2” Duct Board Sample

Page 3: June 12, 2003 JHC CRYOGENIC TESTING PREPARATION The racetrack coil requires a cooldown to and power testing at a temperature near 77K A 12 x 12 x 12” aluminum.

June 12, 2003 JHC

INSULATION TEST MODULE, 2” TRIAL

Gaseous Vent

Dew/Frost Forming

LN2 Feed Line


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