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Title: Evaluation of BeO ceramic disks for thermally stimulated exoelectron dosimetry

Technical Report ·
DOI:https://doi.org/10.2172/7259378· OSTI ID:7259378
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BeO ceramic disks were evaluated for application as dosimeters for both penetrating and non-penetrating radiation. Response to penetrating radiation was measured as thermoluminescence (TL) and to non-penetrating radiation as thermally stimulated exoelectron emission (TSEE). Field experiments demonstrated that both TSEE and TL responses from BeO can monitor diverse radiation fields. BeO disks in a passive dosimeter were found to be sensitive to a lower exposure level of 100 pCi-day/liter of radon. The depth of the more active exoelectron layer in BeO was found to be 4 ..mu..m. A second less active, exoelectron layer extends to a depth of at least 16 ..mu..m.

Research Organization:
Massachusetts Inst. of Tech., Oak Ridge, Tenn. (USA). School of Chemical Engineering Practice
DOE Contract Number:
W-7405-ENG-26
OSTI ID:
7259378
Report Number(s):
ORNL/MIT-220; TRN: 76-023040
Country of Publication:
United States
Language:
English

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Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
EXOELECTRON DOSEMETERS
PERFORMANCE TESTING
BERYLLIUM OXIDES
CALIBRATION
CERAMICS
SENSITIVITY
ALKALINE EARTH METAL COMPOUNDS
BERYLLIUM COMPOUNDS
CHALCOGENIDES
DOSEMETERS
MEASURING INSTRUMENTS
OXIDES
OXYGEN COMPOUNDS
TESTING
440102* - Radiation Instrumentation- Radiation Dosemeters