Effective energy determination of neutron beams by transmittance measurements

Hisao Kobayashi

doi:10.1117/12.204150

3 March 1995 Effective energy determination of neutron beams by transmittance measurements

Hisao Kobayashi

Proceedings Volume 2339, International Conference on Neutrons and Their Applications; (1995) https://doi.org/10.1117/12.204150
Event: 4th International Conference on Applications of Nuclear Techniques: Neutrons and their Applications, 1994, Crete, Greece

Abstract

A method to determine an effective energy for beams with energies less than 100 meV is proposed using measured transmittances for neutron beams with continuum spectra. Effective energies for unknown beams were determined from a ratio of effective total macroscopic cross section of Ti to that of Pb. The effective energies are calibrated using mean energies from known neutron spectra of a thermal-neutron and two cold-neutron beams generated from research reactors. Results are summarized in a table and maximum systematic uncertainties of effective energies are estimated to be 14% for thermal and 27% for cold neutron regions.

Citation Download Citation

Hisao Kobayashi "Effective energy determination of neutron beams by transmittance measurements", Proc. SPIE 2339, International Conference on Neutrons and Their Applications, (3 March 1995); https://doi.org/10.1117/12.204150

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