IMPROVEMENTS IN OR RELATING TO FUEL ELEMENTS
A reactor fuel element is described comprising a fuel member enclosed in a protective sheath, having within the sheath a device selected so as to be affected by a given physical condition in a manner detectable after the condition has changed. The device becomes radioactive under irradiation and can be subsequently counted to determine the extent of the irradiation. The device consists of either a cobalt foil or boron or boron carbide dispersed in an aluminum matrix. The fuel element is provided with heatinsulating discs at the ends of the fuel member. At least one of the discs contains a cavity where the device is inserted. An additional cavity communicates with the cavity containing the device so that the device can deform into the additional cavity on melting of at least part of the device. (N.W.R.)
- Research Organization:
- Originating Research Org. not identified
- NSA Number:
- NSA-15-021823
- OSTI ID:
- 4073024
- Report Number(s):
- GB 869645
- Country of Publication:
- United Kingdom
- Language:
- English
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