Neutron detector for use within nuclear reactor
AssigneeMitsubishi Denki Kabushiki Kaisha
InventorToshimasa Tomoda
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Abstract
An improved long operating lifetime ionization chamber type neutron detector for use within a nuclear reactor. The chamber contains uranium U-235 as the neutron sensitive material and helium or argon fill gas. The atom rate of U-235 to fill gas is from 0.45 to 1.8 for helium, and 2.3 to 9 for argon.
Claims3
In an ionization chamber type neutron detector for use within a nuclear reactor, which detector utilizes enriched uranium U-235 as the neutron sensitive substance within the chamber and helium or argon as the ionizable fill gas within the chamber, the improvement comprising providing an atom ratio of U-235 to ionizable fill gas of 0.45 to 1.8 for helium fill gas, and 2.3 to 9 for argon fill gas.
Dependencies are inferred from the claim text.