Studies on Ceramic Fuels with the Use of Fission Gas Release Loop, (III)

Abstract
Flux monitoring in the specimen chamber of FGRL was carried out by directly and continuously reading with a γ-ray spectrometer the content of 16N in the primary cooling water produced by 16O(n,p)16N reaction within the cooling jacket of FGRL. 16N generation is not influenced by γ-ray build-up in the reactor nor by the temperature in the specimen chamber. The detector can be simply set outside the pipe through which the cooling water flows, because the high energy γ-rays (6.13 MeV) emitted during the 16N decay easily penetrate the pipe wall.

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