Rapid measurement of 241Pu activity at environmental levels using low-level liquid scintillation analysis
Rapid measurement of 241Pu activity at environmental levels using low-level liquid scintillation analysis
A straightforward and rapid method has been developed for the determination of 241Pu activities. Pu is chemically separated from the sample, purified and electrodeposited to produce a source for alpha spectrometric determination of 238Pu and 239,240Pu. Pu is stripped from the disc with concentrated nitric acid and extracted into tri-octylphosphine oxide (TOPO)/toluene. The organic extract is then mixed directly with commercial liquid scintillation cocktail without any further purification procedures and the sample counted on a Wallac 1220 Quantulus liquid scintillation counter (LSC). 241Pu activity is estimated via the 242Pu yield monitor acquired by alpha spectrometry measurement. Experimental results for the performance testing of a low-level liquid scintillation spectrometer and the data for the evaluation of the method using standard reference materials are presented.
241Pu, Radiochemical separation, Environmental radioactivity, Liquid scintillation counter, Quantulus
353-359
Oh, Jung-Suk
378438c5-3aa8-492f-b31f-268b37f40924
Warwick, Phillip E.
f2675d83-eee2-40c5-b53d-fbe437f401ef
Croudace, Ian W.
24deb068-d096-485e-8a23-a32b7a68afaf
Lee, Sang-Han
d9025593-28e8-4970-ac9d-3691b1ea29ae
October 2013
Oh, Jung-Suk
378438c5-3aa8-492f-b31f-268b37f40924
Warwick, Phillip E.
f2675d83-eee2-40c5-b53d-fbe437f401ef
Croudace, Ian W.
24deb068-d096-485e-8a23-a32b7a68afaf
Lee, Sang-Han
d9025593-28e8-4970-ac9d-3691b1ea29ae
Oh, Jung-Suk, Warwick, Phillip E., Croudace, Ian W. and Lee, Sang-Han
(2013)
Rapid measurement of 241Pu activity at environmental levels using low-level liquid scintillation analysis.
Journal of Radioanalytical and Nuclear Chemistry, 298 (1), .
(doi:10.1007/s10967-013-2562-3).
Abstract
A straightforward and rapid method has been developed for the determination of 241Pu activities. Pu is chemically separated from the sample, purified and electrodeposited to produce a source for alpha spectrometric determination of 238Pu and 239,240Pu. Pu is stripped from the disc with concentrated nitric acid and extracted into tri-octylphosphine oxide (TOPO)/toluene. The organic extract is then mixed directly with commercial liquid scintillation cocktail without any further purification procedures and the sample counted on a Wallac 1220 Quantulus liquid scintillation counter (LSC). 241Pu activity is estimated via the 242Pu yield monitor acquired by alpha spectrometry measurement. Experimental results for the performance testing of a low-level liquid scintillation spectrometer and the data for the evaluation of the method using standard reference materials are presented.
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Published date: October 2013
Keywords:
241Pu, Radiochemical separation, Environmental radioactivity, Liquid scintillation counter, Quantulus
Organisations:
Geochemistry
Identifiers
Local EPrints ID: 359572
URI: http://eprints.soton.ac.uk/id/eprint/359572
ISSN: 0236-5731
PURE UUID: e56e2877-989f-4a21-a65c-f5b391e306f8
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Date deposited: 04 Nov 2013 15:27
Last modified: 13 Oct 2022 01:34
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Author:
Jung-Suk Oh
Author:
Sang-Han Lee
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