System for use with solid state dosimeter

Patent · Tue Sep 04 00:00:00 EDT 1990

OSTI ID:7067844

Miller, S D; McDonald, J C; Eichner, F N; Tomeraasen, P L

The present invention constitutes a system for determining the amounts of ionizing radiation to which dosimeters using thermoluminescent materials have been exposed. In accordance with this system, the thermoluminescent materials which comprise the dosimeters are first cooled by contact with a cryogenic substance such as liquefied nitrogen. The thermoluminescent materials are then optically stimulated by exposure to ultraviolet light. Thereafter, the amounts of visible light emitted by the thermoluminescent materials are detected and counted as the materials are allowed to warm up to room temperature. The amounts of luminescence exhibited by the materials are related to radiation exposure and provide a sensitive measure of radiation dosage. It has been discovered that the above procedure is most effective when heavily doped thermoluminescent materials are used and that the procedure allows many useful plastic materials to now be employed in dosimeter constructions. 3 figs.

• DOE Contract Number: AC06-76RL01830
• Assignee: Battelle Memorial Inst., OH (United States)
• Patent Number(s): US 4954707; A
• Application Number: PPN: US 7-213245
• OSTI ID: 7067844
• Resource Relation: Patent File Date: 29 Jun 1988
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
EXPOSURE RATEMETERS
DESIGN
IONIZING RADIATIONS
RADIATION DOSES
THERMOLUMINESCENT DOSEMETERS
COOLING
MATERIALS
DOSEMETERS
DOSES
LUMINESCENT DOSEMETERS
MEASURING INSTRUMENTS
MONITORS
RADIATION MONITORS
RADIATIONS
440102* - Radiation Instrumentation- Radiation Dosemeters