[Updated on July 12] Integration of CiNii Articles into CiNii Research from April 1, 2022

The improvement of the energy resolution in epi-thermal neutron region of Bonner sphere using boric acid water solution moderator.

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Abstract

Bonner sphere is useful to evaluate the neutron spectrum in detail. We are improving the energy resolution in epi-thermal neutron region of Bonner sphere, using boric acid water solution as a moderator. Its response function peak is narrower than that for polyethylene moderator and the improvement of the resolution is expected. The resolutions between polyethylene moderator and boric acid water solution moderator were compared by simulation calculation. Also the influence in the uncertainty of Bonner sphere configuration to spectrum estimation was simulated.

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