WIDE DYNAMIC RANGE BIDIRECTIONAL INTEGRATING ELECTROMETER WITH LOW LEAKAGE CURRENT SOLID-STATE RESET AND RANGE CHANGE OPERATING OVER EXTENDED TEMPERATURE RANGE

摘要

PROBLEM TO BE SOLVED: To provide a radiation monitor which maintains accuracy by minimizing a leakage current.;SOLUTION: A radiation monitor 10 includes an ionization chamber 12 for detecting radiation that passes into the ionization chamber. The ionization chamber generates a current flow in response to the detected radiation. An electrometer 14 is electrically connected to the ionization chamber for measuring the current flow generated by the ionization chamber. The electrometer is operable in a plurality of modes based on the magnitude of the current flow generated by the ionization chamber. A method of measuring the current flow through the electrometer of the radiation monitor is also provided.;COPYRIGHT: (C)2014,JPO&INPIT