NUCLEAR REACTOR
Patent
·
OSTI ID:4715262
A method of testing the presence of a damaged fuel cartridge in a gas cooled nuclear reactor comprises sampling coolant gas, which has passed over the cartridges in the reactor, precipitating for a minimum period of two minutes any ionised particles present in the coolant gas sampled, and measuring the activity of the precipitated particles. The apparatus for testing the presence of a damaged fuel cartridge according to this method comprises a bank of precipitation chambers, means for moving an electrode therethrough, this electrode passing after the precipitation of the particles from the chambers to a bank of monitors, so that each monitor measures only the activity of ionised particles precipitated from a chamber corresponding to the monitor in question and a signal occurring at a monitor can be identified in this manner with a particular precipitation chamber. A pressure vessel encloses the precipitation chambers, electrode and monitors. Preferably the said electrode is constituted of a wire running over pullies and passing successively the banks of precipitation chambers and of monitors. (IIB)
- Research Organization:
- Originating Research Org. not identified
- NSA Number:
- NSA-17-021289
- OSTI ID:
- 4715262
- Report Number(s):
- FR 1254826
- Country of Publication:
- France
- Language:
- English
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