IRRADIATION CAPSULE
Patent
·
OSTI ID:4143515
A capsule is described comprising a hermetically sealed tubular container for the sample. The sample is supported by a cylindrical sleeve of refractory material so that annular interspaces are formed between the container wall and the sleeve, and between the sleeve and the sample, and a heating coil is disposed within that sleeve. Lateral openings in the sleeve in the proximity of its extremities ensure the communication of those interspaces in order to allow a natural circulation of the fluid within the capsule. According to the present addition, means are provided for the determination of the fluid flow of the circulation, comprising an airscrew-like wheel rotatively mounted within the sleeve in the proximity of one end of the sample. According to a first embodiment, the wheel rotates freely and is provided with a pin-point radioactive source that passes periodically in front of a radiation counter. The frequency of the measuring signal of the counter is a measure of the fluid flow. According to another embodiment, the wheel is driven by an electric motor disposed within the capsule such as to control the fluid flow up to a given level. (IIB)
- Research Organization:
- Originating Research Org. not identified
- NSA Number:
- NSA-18-006917
- OSTI ID:
- 4143515
- Report Number(s):
- FIRST ADD. NO. 78,282 TO FRENCH 1261979
- Country of Publication:
- France
- Language:
- English
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