Title:
リチウムランタナイドボレート・シンチレータに基づく低エネルギー中性子検出器
Document Type and Number:
Japanese Patent JP3957763
Kind Code:
B2
Abstract:
An apparatus for detecting neutrons includes a cerium activated scintillation crystal containing 10B, with the scintillation crystal emitting light in response to alpha particles emitted from the 10B(n, alpha )Li* reaction. The apparatus also includes a gamma scintillator positioned adjacent the crystal and which generates light in response to gamma rays emitted from the decay of Li*. The apparatus further includes a first and a second light-to-electronic signal converter each positioned to respectively receive light from the crystal and the gamma scintillator, and each respectively outputting first and second electronic signals representative of alpha particles from the 10B(n, alpha )Li* reaction and gamma rays from the 10B(n, alpha )Li* reaction. The apparatus includes a coincidence circuit connected to receive the first and second signals and which generates a coincidence signal when the first and second signals coincide. The apparatus also includes a data analyzer for receiving an additional signal from at least one of the first and second converters, and for operating in response to the coincidence signal.
Inventors:
Kuzir John Bee.
Application Number:
JP51497298A
Publication Date:
August 15, 2007
Filing Date:
September 19, 1997
Export Citation:
Assignee:
Mission Support Incorporated
International Classes:
G01T3/06
Domestic Patent References:
| JP53131987A | ||||
| JP58030881U | ||||
| JP62228187A | ||||
| JP62277587A | ||||
| JP8297167A |
Other References:
J.MASCETTI, Concentration Quenching of the Nd3+ Emission in Alkali rare Earth Borates, Journal of Solid State Chemistry, 米国,1983年, Vol.50,No.2, page204-212
J.Bart Czirr, A compact neutron coincidence sepectrometer,its measured response functions and potential applications, Nuclear Instruments & Methods in Physics Research, NL, Elsevier Science, 1994年,Vol.349,No.2-3, page 532-539
J.Bart Czirr, A NEUTRON COINCIDENCE SPECTROMETER, Nuclear Instruments and Methods in Physics Research, NL, Elsevier Science, 1989年,Vol.284,No.2-3, page 365-369
J.Bart Czirr, Performance and characteristics of a new scintillator, Nuclear Instruments and Methods in Physics Research, NL, Elsevier Science, 1999年,Vol.424,No.1, page 15-19
J.Bart Czirr, A compact neutron coincidence sepectrometer,its measured response functions and potential applications, Nuclear Instruments & Methods in Physics Research, NL, Elsevier Science, 1994年,Vol.349,No.2-3, page 532-539
J.Bart Czirr, A NEUTRON COINCIDENCE SPECTROMETER, Nuclear Instruments and Methods in Physics Research, NL, Elsevier Science, 1989年,Vol.284,No.2-3, page 365-369
J.Bart Czirr, Performance and characteristics of a new scintillator, Nuclear Instruments and Methods in Physics Research, NL, Elsevier Science, 1999年,Vol.424,No.1, page 15-19
Attorney, Agent or Firm:
Hatsushi Shimizu
Kazunori Hashimoto
Kazunori Hashimoto