Measurement of hot-particle dose profiles using exoelectron dosimeters

Conference · Tue Oct 31 23:00:00 EST 1989 · Transactions of the American Nuclear Society; (United States)

OSTI ID:5486739

Moeller, M P; Merwin, S E ^[1]

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1. Battelle-Pacific Northwest Laboratories, Richland, WA (USA)

Since 1985, staff at Battelle's Pacific Northwest Laboratories (PNL) have analyzed hot-particle contaminants and assisted in the evaluation of hot-particle exposure events at nuclear power plants. More recently, staff have performed an assessment of the thresholds for nonstochastic skin effects caused by hot particles of different sizes and beta energies. The purpose of this paper is to describe methods used for measuring hot-particle dose rates and methods for characterizing dose profiles from particles. The use of exoelectron dosimeters to quantify depth and lateral dose profiles represents a significant improvement in the characterization of radioactive sources, especially for hot particles. Researchers would like to develop a definitive model to relate the dose profiles from hot particles to the induction of nonstochastic skin effects. This objective is now made possible through development of an accurate measurement technique to confirm theoretical calculations. Exoelectron dosimeters can be used to perform such measurements as well as dose rate measurements to 1 cm{sup 2} of skin for regulatory purposes.

• OSTI ID: 5486739
• Report Number(s): CONF-891103--
• Journal Information: Transactions of the American Nuclear Society; (United States), Journal Name: Transactions of the American Nuclear Society; (United States) Vol. 60; ISSN TANSA; ISSN 0003-018X
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
220200 -- Nuclear Reactor Technology-- Components & Accessories
220900* -- Nuclear Reactor Technology-- Reactor Safety
440102 -- Radiation Instrumentation-- Radiation Dosemeters
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
654001 -- Radiation & Shielding Physics-- Radiation Physics
Shielding Calculations & Experiments
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ACCURACY
ANIMALS
BATTELLE PACIFIC NORTHWEST LABORATORIES
BODY
CHARGED PARTICLE DETECTION
COBALT
COMPUTER CODES
CONTAMINATION
DEPTH DOSE DISTRIBUTIONS
DETECTION
DOSEMETERS
DOSES
DOSIMETRY
ELEMENTS
EXOELECTRON DOSEMETERS
FRAGMENTATION
FUEL PARTICLES
MAMMALS
MAN
MEASURING INSTRUMENTS
METALS
NATIONAL ORGANIZATIONS
NUCLEAR FACILITIES
NUCLEAR POWER PLANTS
ORGANS
PARTICLES
PARTICULATES
PERFORMANCE
PERSONNEL DOSIMETRY
POWER PLANTS
PRIMATES
RADIATION DETECTION
RADIATION DOSE DISTRIBUTIONS
RADIATION DOSES
RADIATION PROTECTION
RESEARCH PROGRAMS
SKIN
SPATIAL DOSE DISTRIBUTIONS
THERMAL POWER PLANTS
THRESHOLD DOSE
TRANSITION ELEMENTS
US DOE
US ERDA
US NRC
US ORGANIZATIONS
V CODES
VERTEBRATES