High-efficiency scintillation detector for combined detection of thermal and fast neutrons and gamma radiation
Abstract
A scintillation based radiation detector for the combined detection of thermal neutrons, high-energy neutrons and gamma rays in a single detecting unit. The detector consists of a pair of scintillators sandwiched together and optically coupled to the light sensitive face of a photomultiplier tube. A light tight radiation pervious housing is disposed about the scintillators and a portion of the photomultiplier tube to hold the arrangement in assembly and provides a radiation window adjacent the outer scintillator through which the radiation to be detected enters the detector. The outer scintillator is formed of a material in which scintillations are produced by thermal-neutrons and the inner scintillator is formed of a material in which scintillations are produced by high-energy neutrons and gamma rays. The light pulses produced by events detected in both scintillators are coupled to the photomultiplier tube which produces a current pulse in response to each detected event. These current pulses may be processed in a conventional manner to produce a count rate output indicative of the total detected radiation event count rate. Pulse discrimination techniques may be used to distinguish the different radiations and their energy distribution.
- Inventors:
- Issue Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- OSTI Identifier:
- 6807626
- Patent Number(s):
- 6019738
- Assignee:
- TIC; EDB-88-179255
- Patent Classifications (CPCs):
-
A - HUMAN NECESSITIES A61 - MEDICAL OR VETERINARY SCIENCE A61B - DIAGNOSIS
A - HUMAN NECESSITIES A63 - SPORTS A63B - APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING
- DOE Contract Number:
- AC05-84OR21400
- Resource Type:
- Patent
- Resource Relation:
- Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; SOLID SCINTILLATION DETECTORS; DESIGN; FAST NEUTRONS; GAMMA RADIATION; INVENTIONS; RADIATION DETECTORS; THERMAL NEUTRONS; BARYONS; ELECTROMAGNETIC RADIATION; ELEMENTARY PARTICLES; FERMIONS; HADRONS; IONIZING RADIATIONS; MEASURING INSTRUMENTS; NEUTRONS; NUCLEONS; RADIATIONS; SCINTILLATION COUNTERS; 440103* - Radiation Instrumentation- Nuclear Spectroscopic Instrumentation
Citation Formats
Chiles, M M, Mihalczo, J T, and Blakeman, E D. High-efficiency scintillation detector for combined detection of thermal and fast neutrons and gamma radiation. United States: N. p., 1987.
Web.
Chiles, M M, Mihalczo, J T, & Blakeman, E D. High-efficiency scintillation detector for combined detection of thermal and fast neutrons and gamma radiation. United States.
Chiles, M M, Mihalczo, J T, and Blakeman, E D. Fri .
"High-efficiency scintillation detector for combined detection of thermal and fast neutrons and gamma radiation". United States.
@article{osti_6807626,
title = {High-efficiency scintillation detector for combined detection of thermal and fast neutrons and gamma radiation},
author = {Chiles, M M and Mihalczo, J T and Blakeman, E D},
abstractNote = {A scintillation based radiation detector for the combined detection of thermal neutrons, high-energy neutrons and gamma rays in a single detecting unit. The detector consists of a pair of scintillators sandwiched together and optically coupled to the light sensitive face of a photomultiplier tube. A light tight radiation pervious housing is disposed about the scintillators and a portion of the photomultiplier tube to hold the arrangement in assembly and provides a radiation window adjacent the outer scintillator through which the radiation to be detected enters the detector. The outer scintillator is formed of a material in which scintillations are produced by thermal-neutrons and the inner scintillator is formed of a material in which scintillations are produced by high-energy neutrons and gamma rays. The light pulses produced by events detected in both scintillators are coupled to the photomultiplier tube which produces a current pulse in response to each detected event. These current pulses may be processed in a conventional manner to produce a count rate output indicative of the total detected radiation event count rate. Pulse discrimination techniques may be used to distinguish the different radiations and their energy distribution.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Feb 27 00:00:00 EST 1987},
month = {Fri Feb 27 00:00:00 EST 1987}
}