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Title: Apparatus for real-time airborne particulate radionuclide collection and analysis

Abstract

An improved apparatus for collecting and analyzing an airborne particulate radionuclide having a filter mounted in a housing, the housing having an air inlet upstream of the filter and an air outlet downstream of the filter, wherein an air stream flows therethrough. The air inlet receives the air stream, the filter collects the airborne particulate radionuclide and permits a filtered air stream to pass through the air outlet. The improvement which permits real time counting is a gamma detecting germanium diode mounted downstream of the filter in the filtered air stream. The gamma detecting germanium diode is spaced apart from a downstream side of the filter a minimum distance for a substantially maximum counting detection while permitting substantially free air flow through the filter and uniform particulate radionuclide deposition on the filter.

Inventors:
 [1];  [2]
  1. West Richland, WA
  2. Richland, WA
Issue Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
OSTI Identifier:
873540
Patent Number(s):
6184531
Assignee:
Battelle Memorial Institute (Richland, WA)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01T - MEASUREMENT OF NUCLEAR OR X-RADIATION
DOE Contract Number:  
AC06-76RL01830
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
apparatus; real-time; airborne; particulate; radionuclide; collection; analysis; improved; collecting; analyzing; filter; mounted; housing; air; inlet; upstream; outlet; downstream; stream; flows; therethrough; receives; collects; permits; filtered; pass; improvement; time; counting; gamma; detecting; germanium; diode; spaced; apart; minimum; distance; substantially; maximum; detection; permitting; free; flow; uniform; deposition; substantially free; air stream; spaced apart; air flow; air inlet; improved apparatus; airborne particulate; air outlet; radionuclide deposition; particulate radionuclide; filtered air; stream flow; minimum distance; flows therethrough; filter mounted; time air; real-time air; /250/

Citation Formats

Smart, John E, and Perkins, Richard W. Apparatus for real-time airborne particulate radionuclide collection and analysis. United States: N. p., 2001. Web.
Smart, John E, & Perkins, Richard W. Apparatus for real-time airborne particulate radionuclide collection and analysis. United States.
Smart, John E, and Perkins, Richard W. Mon . "Apparatus for real-time airborne particulate radionuclide collection and analysis". United States. https://www.osti.gov/servlets/purl/873540.
@article{osti_873540,
title = {Apparatus for real-time airborne particulate radionuclide collection and analysis},
author = {Smart, John E and Perkins, Richard W},
abstractNote = {An improved apparatus for collecting and analyzing an airborne particulate radionuclide having a filter mounted in a housing, the housing having an air inlet upstream of the filter and an air outlet downstream of the filter, wherein an air stream flows therethrough. The air inlet receives the air stream, the filter collects the airborne particulate radionuclide and permits a filtered air stream to pass through the air outlet. The improvement which permits real time counting is a gamma detecting germanium diode mounted downstream of the filter in the filtered air stream. The gamma detecting germanium diode is spaced apart from a downstream side of the filter a minimum distance for a substantially maximum counting detection while permitting substantially free air flow through the filter and uniform particulate radionuclide deposition on the filter.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2001},
month = {1}
}