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Title: Apparatus for the field determination of concentration of radioactive constituents in a medium

The instant invention is an apparatus for determining the concentration of radioactive constituents in a test sample; such as surface soils, via rapid real-time analyses, and direct readout on location utilizing a probe made up of multiple layers of detection material used in combination with an analyzer and real-time readout unit. This is accomplished by comparing the signal received from the probe, which can discriminate between types of radiation and energies with stored patterns that are based upon experimental results. This comparison can be used in the calibration of a readout display that reads out in real-time the concentrations of constituents per given volume. For example, the concentration of constituents such as Cs-137, Sr-90, U-238 in the soil, and noble gas radionuclides such as Kr-85 in the atmosphere, can be measured in real-time, on location, without the need for laboratory analysis of samples. 14 figs.
Inventors:
; ; ;
Issue Date:
OSTI Identifier:
100975
Assignee:
Battelle Memorial Inst., Richland, WA (United States) PTO; SCA: 540230; PA: EDB-95:131845; SN: 95001445725
Patent Number(s):
US 5,442,180/A/
Application Number:
PAN: 8-110,284
Contract Number:
AC06-76RL01830
Resource Relation:
Other Information: PBD: 15 Aug 1995
Research Org:
Battelle Memorial Institute
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; RADIATION DETECTORS; DESIGN; RADIOISOTOPES; RADIOECOLOGICAL CONCENTRATION; CESIUM 137; STRONTIUM 90; URANIUM 238; KRYPTON 85; QUANTITATIVE CHEMICAL ANALYSIS; SOIL CHEMISTRY; REAL TIME SYSTEMS