Title: Method of detecting stacks with leaky fuel elements in liquid-metal-cooled reactor and apparatus for effecting same

Abstract: A method of detecting stacks with leaky fuel elements in a liquid-metal-cooled reactor, consisting in that prior to withdrawing a coolant sample, gas is accumulated in the coolant of the stack being controlled, the reactor being shut down, separated from the sample by means of an inert carrier gas, and the radioactivity of the separated gas is measured. An apparatus for carrying out said method comprises a sampler in the form of a tube parallel to the reactor axis in the hole of a rotating plug and adapted to move along the reactor axis. Made in the top portion of the tube are holes for the introduction of the inert carrier gas and the removal thereof together with the gases evolved from the coolant, while the bottom portion of the tube is provided with a sealing member.

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Inventors: Aristarkhov, Nikolai Nikolaevich (PROSPE, KT)
Efimov, Igor Alexandrovich (PROSPE, KT)
Zaitsev, Boris Ivanovich (ULIT, SA)
Peters, Iskra Genrikhovna (ULIT, SA)
Tymosh, Boris Severianovich (PROSPE, KT)
Filonov, Viktor Sergeevich (ULIT, SA)
Sharov, Alexei Lavrentievich
Shildin, Alexei Ivanovich (ULIT, SA)
Balashova, Galina Stepanov (ULIT, SA)

Application Number: 408934
Filing Date: 1973-10-23
Publication_date: 1976-03-09
Assignee:
Primary Class(es): 376/253 250/390.01, 250/391, 376/264, 976/DIG224
Other Classes:
US Patent Ref:

3197377	Jul, 1965	Ohlinger	250/390.
3733249	May, 1973	Miller et al.	176/19.

Other Refs:
Primary Examiner: Willis, Davis L.
Assistant Examiner:
Attorney: Haseltine, Lake & Waters