Neutron beam detecting device, neutron beam detecting method, and neutron beam detection program

A neutron beam detecting method for detecting a neutron beam, comprising:

• using a solar cell-type detector and a radiation detector, the solar cell-type detector being provided with, on a surface thereof, a conversion film configured to convert neutrons into a predetermined radiation, and being configured to generate a current in response to radiation incident through the conversion film, the radiation detector being configured to generate a current insensitive to neutrons as an output signal in response to the incident radiation;
• causing a current measuring device to detect, as signals, a current generated by the solar cell-type detector and a current generated by the radiation detector in response to the incident radiation;
• causing a flux calculating unit to compare the current signal generated by the solar cell-type detector and the current signal generated by the radiation detector which are detected by the current measuring device;
• and
• causing the flux calculating unit to associate the current signals from the solar cell-type detector and the radiation detector detected by the current measuring device with a relation between a flux of incident radiation of a predetermined type obtained in advance and the detected currents from the solar cell-type detector and the radiation detector, and to calculate a flux of a neutron beam based on a result of the association.

A neutron beam detection program used in a neutron beam detecting method for detecting a neutron beam, the program being executed to:

• use a solar cell-type detector and a radiation detector, the solar cell-type detector being provided with, on a surface thereof, a conversion film configured to convert neutrons into a predetermined radiation, and being configured to generate a current in response to radiation incident through the conversion film, the radiation detector being configured to generate a current insensitive to neutrons as an output signal in response to the incident radiation;
• cause a current measuring device to detect, as signals, a current generated by the solar cell-type detector and a current generated by the radiation detector in response to the incident radiation;
• use a flux calculating unit that compares the current signal generated by the solar cell-type detector and the current signal generated by the radiation detector which are detected by the current measuring device;
• and
• cause the flux calculating unit to associate the current signals from the solar cell-type detector and the radiation detector detected by the current measuring device with a relation between a flux of incident radiation of a predetermined type obtained in advance and the detected currents from the solar cell-type detector and the radiation detector, and to calculate a flux of a neutron beam based on a result of the association.