Composition and apparatus for detecting gamma radiation
Abstract
A gamma radiation detector and a radioluminescent composition for use therein. The detector includes a radioluminescent composition that emits light in a characteristic wavelength region when exposed to gamma radiation, and means for detecting said radiation. The composition contains a scintillant such as anglesite (PbSO[sub 4]) or cerussite (PbCO[sub 3]) incorporated into an inert, porous glass matrix via a sol-gel process. Particles of radiation-sensitive scintillant are added to, a sol solution. The mixture is polymerized to form a gel, then dried under conditions that preserve the structural integrity and radiation sensitivity of the scintillant. The final product is a composition containing the uniformly-dispersed scintillant in an inert, optically transparent and highly porous matrix. The composition is chemically inert and substantially impervious to environmental conditions including changes in temperature, air pressure, and so forth. It can be fabricated in cylinders, blocks with holes therethrough for flow of fluid, sheets, surface coatings, pellets or other convenient shapes. 3 figs.
- Inventors:
- Issue Date:
- OSTI Identifier:
- 6978877
- Patent Number(s):
- 5336889
- Application Number:
- PPN: US 8-000309
- Assignee:
- Dept. of Energy, Washington, DC (United States)
- DOE Contract Number:
- AC09-89SR18035
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 4 Jan 1993
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; GAMMA DETECTION; SCINTILLATION COUNTERS; DESIGN; FABRICATION; PHOSPHORS; POROUS MATERIALS; DETECTION; MATERIALS; MEASURING INSTRUMENTS; RADIATION DETECTION; RADIATION DETECTORS; 440101* - Radiation Instrumentation- General Detectors or Monitors & Radiometric Instruments
Citation Formats
Hofstetter, K J. Composition and apparatus for detecting gamma radiation. United States: N. p., 1994.
Web.
Hofstetter, K J. Composition and apparatus for detecting gamma radiation. United States.
Hofstetter, K J. Tue .
"Composition and apparatus for detecting gamma radiation". United States.
@article{osti_6978877,
title = {Composition and apparatus for detecting gamma radiation},
author = {Hofstetter, K J},
abstractNote = {A gamma radiation detector and a radioluminescent composition for use therein. The detector includes a radioluminescent composition that emits light in a characteristic wavelength region when exposed to gamma radiation, and means for detecting said radiation. The composition contains a scintillant such as anglesite (PbSO[sub 4]) or cerussite (PbCO[sub 3]) incorporated into an inert, porous glass matrix via a sol-gel process. Particles of radiation-sensitive scintillant are added to, a sol solution. The mixture is polymerized to form a gel, then dried under conditions that preserve the structural integrity and radiation sensitivity of the scintillant. The final product is a composition containing the uniformly-dispersed scintillant in an inert, optically transparent and highly porous matrix. The composition is chemically inert and substantially impervious to environmental conditions including changes in temperature, air pressure, and so forth. It can be fabricated in cylinders, blocks with holes therethrough for flow of fluid, sheets, surface coatings, pellets or other convenient shapes. 3 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1994},
month = {8}
}