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http://dx.doi.org/10.5757/JKVS.2007.16.4.235

Consideration on the helium leak detection in a large vacuum chamber  

In, S.R. (Nuclear Fusion Research Center, KAERI)
Publication Information
Journal of the Korean Vacuum Society / v.16, no.4, 2007 , pp. 235-243 More about this Journal
Abstract
Nowadays, in our country, large vacuum chambers for huge experimental facilities such as the tokamak fusion device, high power neural beam test stand, and space simulator have been constructed. In such a vacuum chamber of very large size, it is quite complicate to check on leakage quantitatively, while the probability of a leak is relatively high. To investigate the feasibility of applying reliably a helium leak detection to the huge vacuum chambers, and to find a reasonable methodology of choosing an optimum set-up for leak detection, several virtual constructions of the leak detection system have been analyzed by calculating the pressure distribution in the system and the helium level in the sensor part.
Keywords
large vacuum chamber; helium leak detection; helium partial pressure;
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