Measurement of the neutron flux distribution in a research reactor by neutron activation analysis

The neutron flux distribution in the core region of the JRTR was measured through the neutron activation analysis method. Sample mount and a tool for withdrawing the sample mount were devised to irradiate the Au wires and foils. The measured data were compared with calculated values to confirm the r...

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Bibliographic Details
Published in:Journal of radioanalytical and nuclear chemistry 2021-11, Vol.330 (2), p.501-512
Main Authors: Park, Byung-Gun, Jun, Byung Jin, Kang, Gi-Doo, Kim, Myong-Seop, Yoo, Han Jong, Chung, Byun-Young, Lee, Byungchul
Format: Article
Language:English
Subjects:
Activation analysis
Analysis
Chemistry
Chemistry and Materials Science
Diagnostic Radiology
Electric power distribution
Foils
Hadrons
Heavy Ions
Inorganic Chemistry
Irradiation
Mathematical analysis
Neutron activation analysis
Neutron flux
Neutrons
Nuclear Chemistry
Nuclear energy
Nuclear Physics
Nuclear reactors
Physical Chemistry
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Summary:The neutron flux distribution in the core region of the JRTR was measured through the neutron activation analysis method. Sample mount and a tool for withdrawing the sample mount were devised to irradiate the Au wires and foils. The measured data were compared with calculated values to confirm the reliability of the power distribution calculation. The reactor power during irradiation was estimated to be 9% lower than indications of power monitoring systems calibrated at around 10 μW. The measured transversal and axial neutron reaction rate distributions showed agreement within 1.32% difference with the calculated results.
ISSN:0236-5731
1588-2780
DOI:10.1007/s10967-021-07837-2