Application of a multi-element beta dosimeter
A passive beta dosimeter has been developed at the Pacific Northwest Laboratory (PNL) to more accurately account for the beta energy distribution in the radiation field. This dosimeter uses TLD chips placed under shields of varying thicknesses. Each shield attenuates the beta radiation to some degree, depending on the thickness of the shield. An indication of the beta energy spectum can therefore be obtained by examining the relative responses of the TLDs under the different shields. This indication of the spectrum allows the selection of the appropriate energy-dependent calibration factor for converting TLD response to dose. A number of these multi-element dosimeters have been exposed in unknown fields of mixed gamma and beta radiation, and doses for both radiation components have been determined.
- Research Organization:
- Pacific Northwest Lab., Richland, WA (USA)
- DOE Contract Number:
- AC06-76RL01830
- OSTI ID:
- 6380598
- Report Number(s):
- PNL-SA-10670; CONF-830204-8; ON: DE83007845
- Country of Publication:
- United States
- Language:
- English
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Use of multi-element beta dosimeters for measuring dose rates in the TMI-2 containment building
Use of multi-element beta dosimeters for measuring dose rates in the TMI-2 containment building
Related Subjects
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
BETA DOSIMETRY
BETA SPECTRA
CALIBRATION
DESIGN
DOSEMETERS
DOSIMETRY
ENERGY DEPENDENCE
FUNCTIONS
LUMINESCENT DOSEMETERS
MEASURING INSTRUMENTS
OPERATION
RESPONSE FUNCTIONS
SHIELDING
SPECTRA
THERMOLUMINESCENT DOSEMETERS
THERMOLUMINESCENT DOSIMETRY