High efficiency mixed species radioiodine air sampling, readout, and dose assessment system
Reactor accidents require monitoring to assess the impact to persons in the environment. This implies methods and apparatus to accurately and economically sample and evaluate possible released activity. The development of a prototype iodine air sampling system that can differentiate against noble gas activity and be evaluated by standard Civil Defense instrumentation is reported. The apparatus can efficiently (95 percent) collect organic or inorganic, particulate or gaseous radioiodine in concentrations below stable atmospheric iodine, and under severe ambient conditions. Response to noble fission gases was reduced to less than 4 x 10/sup -4/ of an equal iodine airborne activity by heating the collector to approximately 100/sup 0/C. Reliable sample size, +-5 percent, was achieved by using a simple air flow regulator. Thyroid dose commitment was mathematically and graphically related to the iodine isotope distribution expected in the environment and to the response of the Civil Defense CDV-700 instrument used to evaluate the sample. Sensitivity of the method allows dose assessment of 1 to 2 rads to a child's thyroid. (CH)
- Research Organization:
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Sponsoring Organization:
- US Energy Research and Development Administration (ERDA)
- DOE Contract Number:
- E(30-1)-16
- OSTI ID:
- 7334014
- Report Number(s):
- BNL-21541; TRN: 77-000430
- Country of Publication:
- United States
- Language:
- English
Similar Records
Mixed species radioiodine air sampling readout and dose assessment system
Mixed species radioiodine air sampling readout and dose assessment system
Related Subjects
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
22 GENERAL STUDIES OF NUCLEAR REACTORS
HUMAN POPULATIONS
DOSE COMMITMENTS
INTERNAL IRRADIATION
IODINE 131
RADIATION MONITORING
IODINE 132
IODINE 133
IODINE 134
IODINE 135
PERSONNEL
REACTOR ACCIDENTS
RADIATION DOSES
SURFACE AIR
THYROID
AIR SAMPLERS
CHILDREN
CIVIL DEFENSE
DOSEMETERS
ENVIRONMENT
INHALATION
RADIONUCLIDE KINETICS
RADIONUCLIDE MIGRATION
USES
ACCIDENTS
AIR
AIR POLLUTION MONITORS
ANIMALS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BODY
DAYS LIVING RADIOISOTOPES
DOSES
ENDOCRINE GLANDS
ENVIRONMENTAL TRANSPORT
FLUIDS
GASES
GLANDS
HOURS LIVING RADIOISOTOPES
INTAKE
INTERMEDIATE MASS NUCLEI
IODINE ISOTOPES
IRRADIATION
ISOTOPES
LABORATORY EQUIPMENT
MAMMALS
MAN
MASS TRANSFER
MEASURING INSTRUMENTS
MINUTES LIVING RADIOISOTOPES
MONITORING
NATIONAL DEFENSE
NUCLEI
ODD-EVEN NUCLEI
ODD-ODD NUCLEI
ORGANS
POPULATIONS
PRIMATES
RADIOISOTOPES
SAMPLERS
VERTEBRATES
500300* - Environment
Atmospheric- Radioactive Materials Monitoring & Transport- (-1989)
440101 - Radiation Instrumentation- General Detectors or Monitors & Radiometric Instruments
560161 - Radionuclide Effects
Kinetics
& Toxicology- Man
220900 - Nuclear Reactor Technology- Reactor Safety