Impact of upgraded in vivo lung measurement capability on an internal dosimetry program

Conference · Thu Aug 01 04:00:00 EDT 1985

OSTI ID:5632760

Carbaugh, E H; Sula, M J; Aldridge, T L; Spitz, H B

Implementation of high-purity germanium (Ge) detectors in place of sodium iodide (NaI) detectors for in vivo lung measurements of low-energy photon-emitting radionuclides resulted in significant improvement in detection capability and corresponding improvements in the monitoring of potentially exposed workers. Lung activities below those detectable with the NaI system were discovered during the first 18 months of operation. In a number of cases, these activities were estimated to represent intakes resulting in lung doses as high as 25% of the 15 rem/y United States Department of Energy Radiation Protection Standard. Evaluation of these lung activities and their associated intakes was substantially more time consuming than originally anticipated due to calibration differences between the Ge and NaI systems and to the difficulty of completing some of the follow-up investigations.

• Research Organization: Pacific Northwest Lab., Richland, WA (USA)
• DOE Contract Number: AC06-76RL01830
• OSTI ID: 5632760
• Report Number(s): PNL-SA-12650; CONF-8509212-4; ON: DE86010939
• Country of Publication: United States
• Language: English

Related Subjects

440102 -- Radiation Instrumentation-- Radiation Dosemeters
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
560161* -- Radionuclide Effects
Kinetics
& Toxicology-- Man
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
BODY
CALIBRATION
DOSES
DOSIMETRY
GE SEMICONDUCTOR DETECTORS
HAPO
HIGH-PURITY GE DETECTORS
LUNGS
MEASURING INSTRUMENTS
NATIONAL ORGANIZATIONS
ORGANS
PERSONNEL DOSIMETRY
RADIATION DETECTORS
RADIATION DOSES
RESPIRATORY SYSTEM
SEMICONDUCTOR DETECTORS
US AEC
US DOE
US ERDA
US ORGANIZATIONS