Laboratory on the Inline Sampling Head for the Eberline Alpha 6 continuous air monitor
This report describes a series of laboratory tests conducted on the prototype Inline Sampling Head for the Eberline Alpha 6 continuous air monitor. The Inline Sampling Head is housed in a light-tight, dust-proof metal container. The aerosol sample enters via a 1.0-inch diameter (ID) tube and then into a transition region consisting of an egg-shaped flow distribution device that channels the aerosol sample to the area of the collection filter. The diffused junction alpha detector is housed in the distal end of the egg-shaped flow distributor facing the collection filter. The filter holder access door can open either 90 or 180 degrees to facilitate filter changes for horizontal or vertical mounting of the head. Electronic components for the preamplifier stage are also in the remote locatable enclosure. Tests included alpha counting efficiencies for {sup 238}Pu and {sup 239}Pu in the total spectrum and in the Pu regions of interest, the transport of ultrafine particles consisting of radon progeny, and monodisperse 10 {mu}m aerodynamic particles of fluorescent polystyrene latex from the connecting pipe of the inline head to the collection filter. Net alpha particle counting efficiencies were similar to efficiencies measured for the Eberline Radial Inlet Head previously tested. For both the ultrafine radon progeny and the 10 {mu}m particles, transport and collection was about 100%. 3 refs., 7 figs., 5 tabs.
- Research Organization:
- Lovelace Biomedical and Environmental Research Inst., Albuquerque, NM (United States). Inhalation Toxicology Research Inst.
- Sponsoring Organization:
- USDOE; USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC04-76EV01013
- OSTI ID:
- 5429089
- Report Number(s):
- ITRI-TR-910601; ON: DE91015584
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
54 ENVIRONMENTAL SCIENCES
AIR SAMPLERS
PERFORMANCE TESTING
AEROSOL MONITORING
COUNTING TECHNIQUES
FILTERS
PLUTONIUM 238
PLUTONIUM 239
SAVANNAH RIVER PLANT
WIPP
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
AIR POLLUTION MONITORING
ALPHA DECAY RADIOISOTOPES
EQUIPMENT
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
FUNCTIONAL MODELS
HEAVY ION DECAY RADIOISOTOPES
HEAVY NUCLEI
ISOTOPES
MONITORING
NATIONAL ORGANIZATIONS
NUCLEAR FACILITIES
NUCLEI
PILOT PLANTS
PLUTONIUM ISOTOPES
RADIOACTIVE WASTE FACILITIES
RADIOISOTOPES
SAMPLERS
SILICON 32 DECAY RADIOISOTOPES
SPONTANEOUS FISSION RADIOISOTOPES
TESTING
UNDERGROUND FACILITIES
US AEC
US DOE
US ERDA
US ORGANIZATIONS
YEARS LIVING RADIOISOT
YEARS LIVING RADIOISOTOPES
054000* - Nuclear Fuels- Health & Safety
440101 - Radiation Instrumentation- General Detectors or Monitors & Radiometric Instruments
540130 - Environment
Atmospheric- Radioactive Materials Monitoring & Transport- (1990-)
053000 - Nuclear Fuels- Environmental Aspects