Laboratory on the Inline Sampling Head for the Eberline Alpha 6 continuous air monitor

Technical Report · Fri Jun 21 04:00:00 EDT 1991

OSTI ID:5429089

Newton, G J; Hoover, M D

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: DOE; 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

Related Subjects

053000 -- Nuclear Fuels-- Environmental Aspects
054000* -- Nuclear Fuels-- Health & Safety
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
440101 -- Radiation Instrumentation-- General Detectors or Monitors & Radiometric Instruments
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
54 ENVIRONMENTAL SCIENCES
540130 -- Environment
Atmospheric-- Radioactive Materials Monitoring & Transport-- (1990-)
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
AEROSOL MONITORING
AIR POLLUTION MONITORING
AIR SAMPLERS
ALPHA DECAY RADIOISOTOPES
COUNTING TECHNIQUES
EQUIPMENT
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
FILTERS
FUNCTIONAL MODELS
HEAVY ION DECAY RADIOISOTOPES
HEAVY NUCLEI
ISOTOPES
MONITORING
NATIONAL ORGANIZATIONS
NUCLEAR FACILITIES
NUCLEI
PERFORMANCE TESTING
PILOT PLANTS
PLUTONIUM 238
PLUTONIUM 239
PLUTONIUM ISOTOPES
RADIOACTIVE WASTE FACILITIES
RADIOISOTOPES
SAMPLERS
SAVANNAH RIVER PLANT
SILICON 32 DECAY RADIOISOTOPES
SPONTANEOUS FISSION RADIOISOTOPES
TESTING
UNDERGROUND FACILITIES
US AEC
US DOE
US ERDA
US ORGANIZATIONS
WIPP
YEARS LIVING RADIOISOT
YEARS LIVING RADIOISOTOPES