RADIATION DETECTOR
First Claim
1. A scintillation radiation detector capable of discriminating between neutron events and gamma-ray events, comprising:
- a scintillator;
an optical filter;
a first photodetector to which a first part of light emitted from the scintillator is introduced via the optical filter; and
a second photodetector to which a second part of light emitted from the scintillator is introduced not via the optical filter,wherein, for a set of two wavelengths of A nm and (A+B) nm,the scintillator emits at least a light having the wavelength of A nm and a light having the wavelength of (A+B) nm when irradiated by gamma-ray, emits a light having the wavelength of A nm when irradiated by neutrons, and does not emit a light having the wavelength of (A+B) nm when irradiated by neutrons; and
the optical filter blocks the light having the wavelength of A nm and transmits the light having the wavelength of (A+B) nm.
3 Assignments
0 Petitions
Accused Products
Abstract
Provided is a radiation detector with improved n/γ discrimination and usable even under high counting rate conditions with a reduced load on a signal-processing system. The detector capable of distinguishing neutron and gamma-ray events includes: a scintillator; an optical filter; a first photodetector to which a first part of light emitted from the scintillator is introduced via the optical filter; and a second photodetector to which a second part of light emitted from the scintillator is introduced not via the optical filter, wherein, for a set of two wavelengths A and (A+B) nm, the scintillator emits at least a light of A nm and a light of (A+B) nm when irradiated by gamma-ray, and emits a light of A nm and does not emit a light of (A+B) nm when irradiated by neutrons; and the optical filter blocks the light of A nm and transmits the light of (A+B) nm.
2 Citations
7 Claims
-
1. A scintillation radiation detector capable of discriminating between neutron events and gamma-ray events, comprising:
-
a scintillator; an optical filter; a first photodetector to which a first part of light emitted from the scintillator is introduced via the optical filter; and a second photodetector to which a second part of light emitted from the scintillator is introduced not via the optical filter, wherein, for a set of two wavelengths of A nm and (A+B) nm, the scintillator emits at least a light having the wavelength of A nm and a light having the wavelength of (A+B) nm when irradiated by gamma-ray, emits a light having the wavelength of A nm when irradiated by neutrons, and does not emit a light having the wavelength of (A+B) nm when irradiated by neutrons; and the optical filter blocks the light having the wavelength of A nm and transmits the light having the wavelength of (A+B) nm. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
Specification