Inspection of nuclear fuel rods

Details Inspection of nuclear fuel rods Inspection of nuclear fuel rods

G - Physics

21

C

358/5

G21C 17/06 (2006.01) G21C 17/07 (2006.01)

Patent

CA 1057425

TITLE OF THE INVENTION INDUSTRIAL TECHNIQUE ABSTRACT OF THE DISCLOSURE A typical embodiment of the invention detects leaking fuel rods by means of a radiation detector that measures the concentra- tion of xenon-133 (Xe1 3 3 ) within each individual rod. A collimated detector that provides signals related to the energy of incident radiation is aligned with one of the ends of a fuel rod. A statis- tically significant sample of the gamma radiation (? rays) that characterize Xe1 3 3 is accumulated through the detector. The data so accumulated indicates the presence of a concentration of Xe1 3 3 appropriate to a sound fuel rod, or a significantly different con- centration that reflects a leaking fuel rod.

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