Thermal neutron calibration method using an intense neutron beam from JRR-3M

We have developed a thermal neutron calibration method using a reactor produced neutron beam in JRR-3M of the Japan Atomic Energy Agency. Neutron-induced prompt gamma ray analysis has usually been performed in this beam line. Neutron energy distributions with negligible contributions from epithermal...

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Bibliographic Details
Published in:Radiation measurements 2010-12, Vol.45 (10), p.1124-1126
Main Authors: Matsumoto, T., Harano, H., Nishiyama, J., Matsue, H., Masuda, A., Uritani, A., Kudo, K.
Format: Article
Language:English
Subjects:
Earth sciences
Earth, ocean, space
Exact sciences and technology
Geochronology
Isotope geochemistry. Geochronology
Neutron flux
Neutron spectrum
Reactor produced neutron beam
Thermal neutron calibration
Time-of-flight method
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Summary:We have developed a thermal neutron calibration method using a reactor produced neutron beam in JRR-3M of the Japan Atomic Energy Agency. Neutron-induced prompt gamma ray analysis has usually been performed in this beam line. Neutron energy distributions with negligible contributions from epithermal neutrons were measured by a time-of-flight method with a chopper made of 6LiF powder. The thermal neutron flux was determined by a gold foil activation method. We found that the thermal neutron beam in JRR-3M was well suited for calibration, neutron detector development or neutron dosimetry.
ISSN:1350-4487
1879-0925
DOI:10.1016/j.radmeas.2010.06.052