A two-section gas-filled ionization chamber for neutron flux measurements

摘要

A promising design of a KHK-type two-section gas-filled ionization chamber is described for the first time. A relationship between the design parameters, gas pressure, and characteristics of the material is determined, under which full compensation of the background currents from the y-radiation and the measurement of thermal neutron fluxes in a range of 400 to 7×10{sup}9 cm{sup}(-2) s{sup}(-1) at a load characteristic with a <5% nonlinearity are provided. Test results of the chamber are presented.