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Determination of radium by {alpha}-inner scintillation

Technical Report:

Abstract

A method of measuring radium by {alpha}-inner scintillation is introduced, which is similar to the detection of scintillation chamber with zero volume. The formation of samples and scintillation substances is also similar to {beta}-liquid scintillation but it is mixed between solids. By this method the radionuclides are absorbed, filtrated, dried and evenly mixed with ZnS(Ag), then sealed up for measuring. Under specified conditions and in the range of 4{approx}8 MeV ({alpha}-energy), the 4{pi} detecting efficiency is 95{+-}1%. It can rapidly measure {sup 226}Ra in samples taken from uranium ore processing. The determination cycle for batch processing (6 samples and in liquid) is about 6 hours. It can also measure {sup 226}Ra and {sup 224}Ra in environmental samples of soil, water and biology. The determination cycle is 4{approx}6 days that is less than half of the cycle of emanation method and the detection limit is 1.5 x 10{sup -4} Bq.
Authors:
Tianxia, Zhu [1] 
  1. Beijing Research Inst. of Chemical Engineering and Metallurgy (China)
Publication Date:
Nov 01, 1991
Product Type:
Technical Report
Report Number:
CNIC-00564; BICM-0002.
Reference Number:
SCA: 440101; 540211; PA: AIX-24:007667; SN: 93000932466
Resource Relation:
Other Information: PBD: Nov 1991
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; 54 ENVIRONMENTAL SCIENCES; RADIUM 224; SCINTILLATION COUNTERS; RADIUM 226; MODIFICATIONS; ACCURACY; ALPHA DETECTION; CALIBRATION; CARRIERS; COMPARATIVE EVALUATIONS; EFFICIENCY; PERFORMANCE TESTING; SAMPLE PREPARATION; SENSITIVITY; ZINC SULFIDES; 440101; 540211; GENERAL DETECTORS OR MONITORS AND RADIOMETRIC INSTRUMENTS; RADIOMETRIC TECHNIQUES
OSTI ID:
10119182
Research Organizations:
China Nuclear Information Centre, Beijing, BJ (China)
Country of Origin:
China
Language:
Chinese
Other Identifying Numbers:
Other: ON: DE93612637; ISBN 7-5022-0601-9; TRN: CN9201656007667
Availability:
OSTI; NTIS (US Sales Only); INIS
Submitting Site:
INIS
Size:
[10] p.
Announcement Date:
Jun 30, 2005

Technical Report:

Citation Formats

Tianxia, Zhu. Determination of radium by {alpha}-inner scintillation. China: N. p., 1991. Web.
Tianxia, Zhu. Determination of radium by {alpha}-inner scintillation. China.
Tianxia, Zhu. 1991. "Determination of radium by {alpha}-inner scintillation." China.
@misc{etde_10119182,
title = {Determination of radium by {alpha}-inner scintillation}
author = {Tianxia, Zhu}
abstractNote = {A method of measuring radium by {alpha}-inner scintillation is introduced, which is similar to the detection of scintillation chamber with zero volume. The formation of samples and scintillation substances is also similar to {beta}-liquid scintillation but it is mixed between solids. By this method the radionuclides are absorbed, filtrated, dried and evenly mixed with ZnS(Ag), then sealed up for measuring. Under specified conditions and in the range of 4{approx}8 MeV ({alpha}-energy), the 4{pi} detecting efficiency is 95{+-}1%. It can rapidly measure {sup 226}Ra in samples taken from uranium ore processing. The determination cycle for batch processing (6 samples and in liquid) is about 6 hours. It can also measure {sup 226}Ra and {sup 224}Ra in environmental samples of soil, water and biology. The determination cycle is 4{approx}6 days that is less than half of the cycle of emanation method and the detection limit is 1.5 x 10{sup -4} Bq.}
place = {China}
year = {1991}
month = {Nov}
}