Method and apparatus for the Prevention of Fading Phenomena in Semiconductor type Neutron Detector using Displacement Damage in Detection

摘要

PURPOSE: An apparatus and a method for preventing fail of a semiconductor type neutron probe device are provided to prevent a loss of dosimetry information of neutrons by using a displacement damage principle. CONSTITUTION: An exposure dose of a neutron is represented at an initial time(1). Then, a next measurement step is carried out(2). In this state, variation of the exposure dose of the neutron between above steps is detected(3). If an amount of the exposure dose is increased, the amount of increased exposure dose is accumulated and the next measurement step is carried out(4). If the exposure dose is reduced, previous exposure dose value is maintained(5). Then, the next measurement step is carried out, thereby preventing a loss of dosimetry information of neutrons.