Nuclear fuel rod helium leak inspection apparatus and method

Induced nuclear reactions: processes – systems – and elements – Testing – sensing – measuring – or detecting a fission reactor... – Leak detection

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376253, 376450, G21C 1700

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active

050098357

ABSTRACT:
An inspection apparatus and method for testing nuclear fuel rods for helium leaks includes the basic operative steps of constantly leaking helium at a predetermined known value into a test chamber containing a fuel rod to be tested, and sampling the atmosphere within the chamber and measuring the helium in the atmosphere. A measured helium value below a preset minimum helium value indicates a malfunction in the inspection apparatus, whereas a measured helium value above a preset maximum helium value indicates the existence of a helium leak from the fuel rods. On the other hand, a measured helium value between the minimum and maximum helium values indicates the absence of a helium leak from the fuel rod.

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"Vacuum Lock-Sample Changer for a Mass Spectrometer," B. S. Prahallada Rao and S. R. Halbe, Journal of Physics E: Scientific Instruments, vol. 9, pp. 205-207.

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