NEUTRON SOURCE POSITION MEASURING DEVICE AND NEUTRON SOURCE POSITION MEASURING METHOD

To easily measure the position of a neutron source.SOLUTION: A neutron source position measuring device 10 includes: a metal plate converter 12 containing a metallic element that is converted into another radioactive isotope that undergoes beta decay by a threshold reaction that absorbs neutrons; a...

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Bibliographic Details
Main Authors UEMOTO RYUJI, UEMATSU MIKIO, UNO HIROYUKI, NITTO KOICHI
Format Patent
LanguageEnglish
Japanese
Published 12.03.2024
Subjects
GAMMA RAY OR X-RAY MICROSCOPES
IRRADIATION DEVICES
MEASUREMENT OF NUCLEAR OR X-RADIATION
MEASURING
NUCLEAR ENGINEERING
NUCLEAR PHYSICS
PHYSICS
TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOTOTHERWISE PROVIDED FOR
TESTING
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Summary:To easily measure the position of a neutron source.SOLUTION: A neutron source position measuring device 10 includes: a metal plate converter 12 containing a metallic element that is converted into another radioactive isotope that undergoes beta decay by a threshold reaction that absorbs neutrons; a marker for identifying the position of a reference point 20 of the metal plate converter 12; and a neutron absorber 14 that is placed away from the metal plate converter 12 toward the neutron source 96 on a reference axis 22 passing through the reference point 20, and made of a material with a neutron absorption coefficient greater than that of metal plate converter 12 at an energy where a threshold reaction occurs.SELECTED DRAWING: Figure 2 【課題】中性子線源の位置を簡便に測定する。【解決手段】中性子線源位置測定装置１０は、中性子を吸収する閾値反応によってベータ壊変する別の放射性同位元素に変換される金属元素を含有する金属板コンバータ１２と、金属板コンバータ１２の基準点２０の位置を識別するためのマーカと、基準点２０を通る基準軸２２上において、金属板コンバータ１２から中性子線源９６側に離れて配置され、閾値反応が生じるエネルギーの中性子吸収係数が金属板コンバータ１２よりも大きい材料で構成される中性子吸収体１４と、を備える。【選択図】図２
Bibliography:Application Number: JP20220135645