Radiant energy – Invisible radiant energy responsive electric signalling – Neutron responsive means
Patent
1973-10-23
1976-03-09
Willis, Davis L.
Radiant energy
Invisible radiant energy responsive electric signalling
Neutron responsive means
250391, G01T 300
Patent
active
039433650
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.
REFERENCES:
patent: 3197377 (1965-07-01), Ohlinger
patent: 3733249 (1973-05-01), Miller et al.
Aristarkhov Nikolai Nikolaevich
Balashova Galina Stepanovna
Bets Nikolai Ivanovich
Efimov Igor Alexandrovich
Filonov Viktor Sergeevich
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