Quantitative relations between beta-gamma mixed-field dosimeter responses and dose-equivalent conversion factors according to the testing standard

Technical Report · Sun Aug 01 04:00:00 EDT 1982

OSTI ID:5076485

Gupta, V P

The conventional two-element personnel dosimeters, usually having two thick TLD (thermoluminescent dosimetry) ribbons, are used extensively for radiation protection dosimetry. Many of these dosimeters are used for the measurement of beta and gamma radiation doses received in mixed beta-gamma fields. Severe limitations exist, however, on the relative magnitudes and energies of these fields that may be measured simultaneously. Moreover, due to a well-known energy dependence of these dosimeters, particularly for the beta-radiations, systematic errors will occur whenever the differences in workplaces and calibration radiation energies exist. A simple mathematical approach is presented to estimate the deep and shallow dose equivalent values at different energies for such dosimeters. The formulae correlate the dosimeter responses and dose equivalent conversion factors at different energies by taking into account the guidelines of the adopted ANSI Standard N13.11 and the dosimetry practices followed by most dosimeter processors. This standard is to be used in a mandatory testing program in the United States.

• Research Organization: Idaho National Engineering Lab., Idaho Falls (USA)
• DOE Contract Number: AC07-76ID01570
• OSTI ID: 5076485
• Report Number(s): EGG-SHS-5934; ON: DE82018819
• Country of Publication: United States
• Language: English

Related Subjects

440102* -- Radiation Instrumentation-- Radiation Dosemeters
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
BETA DOSIMETRY
CALIBRATION
DOSE EQUIVALENTS
DOSE-RESPONSE RELATIONSHIPS
DOSEMETERS
DOSIMETRY
ENERGY DEPENDENCE
GAMMA DOSIMETRY
LUMINESCENT DOSEMETERS
MEASURING INSTRUMENTS
PERFORMANCE
TESTING
THERMOLUMINESCENT DOSEMETERS