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《Physics Experimentation》 2009-10
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Measurement of low temperature thermal conductivity of pure Cu with helium refrigerator

LI Ke,RAN Shu-neng,JIA Chun-yan,SONG Jian-bang, WU Si-cheng(Physics School,Peking University,Beijing 100871,China)  
The usual liquid nitrogen equipment can only measure the thermal conductivity of pure Cu at temperatures from 78 K to room temperature.Our new system uses helium refrigerator,the lowest temperature can be reduced to 9 K.The uncertainty of the result is about 3%.
【CateGory Index】: TB651
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