Increasing the sensitivity of241Pu determination for emission and immission control of nuclear installations by aid of liquid scintillation counting

M. Pimpl

doi:10.1007/bf02040489

Journal of Radioanalytical and Nuclear Chemistry

Volume/Issue:: Volume 161: Issue 2

Increasing the sensitivity of²⁴¹Pu determination for emission and immission control of nuclear installations by aid of liquid scintillation counting

Author:

M. Pimpl

M. Pimpl Karlsruhe Nuclear Research Center Central Safety Department Box 3640 D-7500 Karlsruhe (Germany)

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Pages:: 429–436

Online Publication Date:: 14 Aug 2005

Publication Date:: 17 Aug 1992

Article Category:: Research Article

DOI:: https://doi.org/10.1007/bf02040489

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Abstract

A radiochemical procedure was developed and optimized which allows sensitive²⁴¹Pu measurement in various sample materials. As a first step, Pu isotopes are separated from matrix elements, purified radiochemically, electroplated, and measured by -spectrometry. The electrodeposited Pu is then redissolved in nitric acid and extracted with trioctylphosphinic oxide/cyclohexane. The organic phase is mixed with scintillator cocktail (PPO/Xylene) and Pu is measured with a liquid scintillation counter. The detection limit of the optimized procedure for a counting time of 100 minutes is 50 mBq²⁴¹Pu per sample at a 95% confidence level.

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Journal of Radioanalytical and Nuclear Chemistry

Print ISSN:: 0236-5731

Online ISSN:: 1588-2780

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Journal of Radionalytical and Nuclear Chemistry
Language	English
Size	A4
Year of Foundation	1968
Volumes per Year	1
Issues per Year	12
Founder	Akadémiai Kiadó
Founder's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher	Akadémiai Kiadó Springer Nature Switzerland AG
Publisher's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245. CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible Publisher	Chief Executive Officer, Akadémiai Kiadó
ISSN	0236-5731 (Print)
ISSN	1588-2780 (Online)