Uranium‐233 fission detectors for neutron flux measurement in reactors

Autor: K. R. Prasad, V. Balagi
Rok vydání: 1996
Předmět:
Zdroj: Review of Scientific Instruments. 67:2197-2201
ISSN: 1089-7623
0034-6748
DOI: 10.1063/1.1147036
Popis: Fission counters have been developed indigenously, using 233U as a sensing material for reactor startup applications. The first model has a counting sensitivity of 0.003 cps/nv in the pulse mode, 1×10−15 A/nv in the dc mode, and 6.4×10−29 A2 Hz/nv in the Campbell mode. A more sensitive counter with about 75 mg of 233U showed an average sensitivity of 0.02 cps/nv. A proposal for 233U in‐core miniature dc fission chambers is discussed. A design for high sensitivity (0.5 cps/nv) U‐233 pulse counter with transmission line‐type readout is also proposed.
Databáze: OpenAIRE