Boron coated neutron detector and method for manufacturing the same

摘要

A boron-coated neutron detector, comprising a cathode tube with a plurality of passages formed therein along its longitudinal direction, the inner wall of each passage being coated with boron material; an electrode wire serving as an anode and arranged longitudinally in each of the passages, the electrode wire adapted to be applied with high voltage; and an insulating end plate to which each end of the cathode tube is fixed, the electrode wire being fixed to the cathode tube via the insulating end plate. Preferably, the cathode tube is formed by jointing a plurality of boron-coated substrates. The boron-coated neutron detector increases the detection efficiency of the neutron detector, which may reach or even exceed the detection efficiency of the 3He neutron detector of the same size, and the cost thereof is much cheaper than the 3He neutron detector.

主权项

1. A boron-coated neutron detector, comprising:
a cathode tube with a plurality of passages formed therein along its longitudinal direction, the inner wall of each passage being coated with boron material; an electrode wire serving as an anode and arranged longitudinally in each of the passages; and an insulating end plate fixed to each end of the cathode tube, the electrode wire being fixed to the cathode tube via the insulating end plates, wherein the cathode tube is formed of a plurality of boron-coated substrates that form the plurality of passages and each of the plurality of boron-coated substrates contains at least one L-shaped step, such that each of the plurality of passages has a square cross section and linear portions of adjacent ones of the plurality of boron-coated substrates do not overlap one another.