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U.S. Department of Energy
Office of Scientific and Technical Information

IMPROVEMENTS RELATING TO THE DETECTION OF BURSTS OF FUEL ELEMENTS IN NUCLEAR REACTORS

Patent ·
OSTI ID:4843869
For the detection of bursts of fuel elements, the activity is measured of the solid decay products of gaseous fission products, which may be conveyed by a portion of the reactor coolant coming at a given instant from a selected reactor channel. For this purpose the coolant sample is led beforehand through a chamber in which a sufficient portion of the said decay products may be formed and is then led into a precipitation chamber. A part of the wall of the latter chamber is formed by the surface of a collecting drum constituting the negative electrode. A repulsion electrode is placed in front of the surface of the drum. The solid decay products collected on this drum during a precipitation period are then transposed by a rotation of the drum and brought in front of a scintillation counter to measure their activity. (NPO)
Research Organization:
Originating Research Org. not identified
NSA Number:
NSA-15-027105
OSTI ID:
4843869
Report Number(s):
FR 1201566
Country of Publication:
France
Language:
English