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Low Temperature Test of HWR Cryomodule
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 Title & Authors
Low Temperature Test of HWR Cryomodule
Kim, Heetae; Kim, Youngkwon; Lee, Min Ki; Park, Gunn-Tae; Kim, Wookang;
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 Abstract
Low temperature test for half-wave resonator (HWR) cryomodule is performed at the superfluid helium temperature of 2 K. The effective temperature is defined for non-uniform temperature distribution. Helium leak detection techniques are introduced for cryogenic system. Experimental set up is shown to make the low temperature test for the HWR cryomodule. The cooldown procedure of the HWR cryomodule is shown from room temperature to 2 K. The cryomodules is precooled with liquid nitrogen and then liquid helium is supplied to the helium reservoirs and cavities. The pressure of cavity and chamber are monitored as a function of time. The vacuum pressure of the cryomodule is not increased at 2 K, which shows leak-tight in the superfluid helium environment. Static heat load is also measured for the cryomodule at 2.5 K.
 Keywords
Cryomodule;Linear accelerator;Low temperature test;Effective temperature;Vacuum pump;
 Language
English
 Cited by
 References
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