UN METODO Y UN APARATO PARA VIGILAR CONTINUAMENTE EL CONTE- NIDO DE TRITIO EN MEDIOS FLUIDOS DE UN REACTOR NUCLEAR AUTO-RREGENERABLE.

摘要

1452079 Monitoring nuclear reactors WESTINGHOUSE ELECTRIC CORP 28 Dec 1973 [10 Jan 1973] 59998/73 Heading G6C [Also in Division H1] Tritium concentration in a fluid in a breeder reactor is monitored by passing the fluid over a permeable wall portion of an inclosure in which ionization current resulting from tritium activity flows, and measuring the current. In the embodiment shown, the reactor liquid sodium coolant passes through heat-exchanger 23 and to the interior of jacket 25 enclosing a tube 27, e.g. of nickel, permeable to hydrogen isotopes. The latter pass within the tube to a gamma-shielded chamber in which ionization of a filling gas, e.g. argon, produces discharge current between electrodes 35, 41 the magnitude of the current being indicated on a meter 55. In another embodiment Fig. 2 (not shown), the reactor cover gas, or (if the reactor is a gas-cooled breeder) the coolant gas, is similarly monitored.