Calibration of a thermoluminescent dosimetry system to measure effective dose equivalent for 6- to 7-MeV gamma rays

Journal Article · Sat Feb 01 04:00:00 EST 1986 · Health Phys.; (United States)

DOI:https://doi.org/10.1097/00004032-198602000-00007· OSTI ID:5522293

Walsh, M L; Facey, R A

Uncertainty exists as to expected responses of personnel dosimeters when worn in fields of 16N gamma's. Doses to internal organs are also not well known. Accordingly, the response of the Ontario Hydro (OH) TLD badge in terms of the effective dose equivalent (EDE) concept of ICRP Publication 26 was evaluated. Photons at 6-7 MeV were generated from accelerator protons using the 19F (p, alpha gamma)16O* reaction, which closely simulates a 16N-decay gamma field. A phantom containing more than 300 internal TLDs and wearing the OH TLD badges was exposed in stationary and rotational configurations. Ratios of organ dose equivalents (gonads, mean bone marrow, lung and thyroid) to chest badge exposures were 0.6-0.7 for the stationary (frontal) field and 0.7-0.9 for the rotational field. Ratios of EDE to chest badge were 0.60 and 0.77, respectively. The OH TLD badge (and other badges of the same design) will perform satisfactorily in a 16N gamma field under the EDE concept.

• Research Organization: Ontario Hydro, Pickering, Canada
• OSTI ID: 5522293
• Journal Information: Health Phys.; (United States), Journal Name: Health Phys.; (United States) Vol. 2; ISSN HLTPA
• Country of Publication: United States
• Language: English

Related Subjects

440102 -- Radiation Instrumentation-- Radiation Dosemeters
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
61 RADIATION PROTECTION AND DOSIMETRY
655003* -- Medical Physics-- Dosimetry
DOSE EQUIVALENTS
DOSEMETERS
ELECTROMAGNETIC RADIATION
GAMMA RADIATION
IONIZING RADIATIONS
LUMINESCENT DOSEMETERS
MEASURING INSTRUMENTS
MOCKUP
MONITORING
PERSONNEL MONITORING
PHANTOMS
RADIATION MONITORING
RADIATIONS
SIMULATION
STRUCTURAL MODELS
TESTING
THERMOLUMINESCENT DOSEMETERS