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Measurement of delayed neutron-emitting fission products in nuclear reactor coolant water during reactor operation

Journal Article · · Annu. Book ASTM Stand.; (United States)
OSTI ID:5558538
The method covers the detection and measurement of delayed neutron-emitting fission products contained in nuclear reactor coolant water while the reactor is operating. The method is limited to the measurement of the delayed neutron-emitting bromine isotope of mass 87 and the delayed neutron-emitting iodine isotope of mass 137. The other delayed neutron-emitting fission products cannot be accurately distinguished from nitrogen 17, which is formed under some reactor conditions by neutron irradiation of the coolant water molecules. The method includes a description of significance, measurement variables, interferences, apparatus, sampling, calibration, standardization, sample measurement procedures, system efficiency determination, calculations, and precision. (JMT)
OSTI ID:
5558538
Journal Information:
Annu. Book ASTM Stand.; (United States), Journal Name: Annu. Book ASTM Stand.; (United States) Vol. 45; ISSN ABASC
Country of Publication:
United States
Language:
English

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