On-line measurement of stack gas particulate radionuclides
Conference
·
· Transactions of the American Nuclear Society; (USA)
OSTI ID:5334226
Stack gases from nuclear facilities can contain both natural and man-made radionuclides. Interferences from natural radon daughters limit the detection capability of common radiation measurement methods. An improved system using on-line multichannel analyzers, alpha energy spectroscopy, gamma-ray analysis, radon-compensated gross beta counting, and automated data reduction is presented. This system provides accurate determination of certain stack effluent fine particulates as air concentrations at or near the derived concentration guides alarms at preset levels. The system, the moving filter radioactive aerosol monitor (MFRAM), is an adaptation of the transuranic aerosol measurement system developed by the Lawrence Livermore National Laboratory. The MFRAM controls a high-temperature sample stream to minimize mass formations that degrades alpha spectroscopy results. It features an alpha energy analysis (AEA) algorithm for automatic internal energy calibration with resolution compensation and spectral peak extraction. The AEA program reports {sup 239}Pu, {sup 212}Bi, and {sup 212}Po as air concentrations; {sup 212}Po is used to compensate for the radon contribution to gross beta measurements. The resultant beta measurement is used to determine the long-lived radionuclide gross beta concentration.
- OSTI ID:
- 5334226
- Report Number(s):
- CONF-871101--
- Conference Information:
- Journal Name: Transactions of the American Nuclear Society; (USA) Journal Volume: 55:3
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
054000* -- Nuclear Fuels-- Health & Safety
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
22 GENERAL STUDIES OF NUCLEAR REACTORS
220900 -- Nuclear Reactor Technology-- Reactor Safety
AEROSOLS
ALGORITHMS
ALPHA SPECTROSCOPY
BETA SPECTROSCOPY
COLLOIDS
DISPERSIONS
ELEMENTS
FLUIDS
GASES
LAWRENCE LIVERMORE LABORATORY
MANAGEMENT
MATHEMATICAL LOGIC
MONITORING
NATIONAL ORGANIZATIONS
NONMETALS
NUCLEAR FACILITIES
RADIATION MONITORING
RADON
RARE GASES
SOLS
SPECTROSCOPY
STACK DISPOSAL
US AEC
US DOE
US ERDA
US ORGANIZATIONS
WASTE DISPOSAL
WASTE MANAGEMENT
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
22 GENERAL STUDIES OF NUCLEAR REACTORS
220900 -- Nuclear Reactor Technology-- Reactor Safety
AEROSOLS
ALGORITHMS
ALPHA SPECTROSCOPY
BETA SPECTROSCOPY
COLLOIDS
DISPERSIONS
ELEMENTS
FLUIDS
GASES
LAWRENCE LIVERMORE LABORATORY
MANAGEMENT
MATHEMATICAL LOGIC
MONITORING
NATIONAL ORGANIZATIONS
NONMETALS
NUCLEAR FACILITIES
RADIATION MONITORING
RADON
RARE GASES
SOLS
SPECTROSCOPY
STACK DISPOSAL
US AEC
US DOE
US ERDA
US ORGANIZATIONS
WASTE DISPOSAL
WASTE MANAGEMENT