Tag gas capsule with magnetic piercing device

Details Tag gas capsule with magnetic piercing device Tag gas capsule with magnetic piercing device

1975-02-24

1976-06-22

Behrend, Harvey E.

176 19LD, G21C 316

Patent

active

039649679

ABSTRACT:
An apparatus for introducing a tag (i.e., identifying) gas into a tubular nuclear fuel element. A sealed capsule containing the tag gas is placed in the plenum in the fuel tube between the fuel and the end cap. A ferromagnetic punch having a penetrating point is slidably mounted in the plenum. By external electro-magnets, the punch may be caused to penetrate a thin rupturable end wall of the capsule and release the tag gas into the fuel element. Preferably the punch is slidably mounted within the capsule, which is in turn loaded as a sealed unit into the fuel element.

REFERENCES:
patent: 3157580 (1964-11-01), Williams
patent: 3350271 (1967-10-01), Maidment et al.
patent: 3632470 (1972-01-01), Rubin et al.
Transactions of ANS, vol. 13, No. 2, Nov. 13, 1970, pp. 797, 798.

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