SEDL / STP / STP223-EB / STP42017S

A Technique for Gamma Radiographic Inspection of Parallel-Plate Fuel Assemblies

Calkins, G. D.
Battelle Memorial Inst., Columbus, Ohio

Pobereskin, M.
Battelle Memorial Inst., Columbus, Ohio

Price, R. B.
Battelle Memorial Inst., Columbus, Ohio

EWBANK, N. M.
Atomics International, Canoga Park, Calif.

Pages: 9    Published: Jan 1958

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Abstract

Using a 0.005-in. diameter tungsten wire, a line radiation source of tungsten-185 was prepared by neutron activation. Parallel wires mounted in a holder which fits into the coolant channel were used to locate the core alloy edge, necking, and defects in the core for two adjacent fuel plates in a multiplate assembly.

From the radiation energy viewpoint, thulium-170 was a more suitable radiation source. Thulium is not available, however, as wire, and a development program for the production of uniform diameter thulium wire would be necessary.