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Published byAmbrose Goodwin Modified over 9 years ago
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1 Status of PT Cryocooler for Final Calorimeter KEK, ICEPP Tom HARUYAMA / Satoshi MIHARA 2004.1.20-21 MEG Pre-Meeting 1. Heat load and PT cryoooler 2. Further test and schedule
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2 -Heat Load- -Based on the KEK-original PT cryocooler, Cryocooler with higher cooling power has been developed for the final calorimeter
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3 Large Power Pulse Tube Cryocooler Technology transfered to Iwatani Co., Ltd Designed: 150 W @165K
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4 Large Power Pulse Tube Cryocooler Technology transfered to Iwatani Co., Ltd. One for Columbia University For Dark Matter Research Designed: - 90 W@165K - 3kWcompressor
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5 Large Power Pulse Tube Cryocooler - Technology transfered to Iwatani Co., Ltd. - Two for MEG Designed: - 150 W @165K - using 6.7kW compressor
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6 Large Power PT Cryocooler -Cooling power at 6.7kW compressor- KEK original for Large Proto For final calorimeter 6.7kW, 4Hz
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7 Results and Further Tests -Achieved cooling power of 190W at 165K (6.7kW compressor) -Orientation dependence test... Horizontal layout for the case of two cold head -Another phase shift configuration (Double Inlet) test... To increase cooling power Schedule -January 2004:Final parameter fixed -February 2004:Fabrication will start -March 2004:Will be delivered (two sets) -Can be installed for the LXe liquid purification test
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