Validation of efficiency tracing and zero detection threshold techniques using liquid scintillation analyser TriCarb.

Abstract:

:Efficiency tracing with unquenched 14C and zero detection threshold with unquenched 3H as tracers are practical and simple techniques which have been implemented to quantify the activity of various beta emitters using liquid scintillation analyser. These techniques are used to study the influence of quench level on activity quantification and the activity levels up to which these techniques are applicable. The results indicate that, for an activity level of 166.67 Bq, both the techniques are in good agreement with the reference activity with a relative discrepancy of ≤4.6 %. The relative discrepancy of ~10 % is observed for extreme quench values of ~111. For all the radionuclides with the activity level of 1.67 Bq, the uncertainty in activity quantification raises to ~8 % and for the activity level from 8.33 to 100 Bq, the uncertainty reduces to 1 %.

journal_name

Radiat Prot Dosimetry

authors

Reddy PJ,Bhade SP,Babu DA,Sharma DN

doi

10.1093/rpd/ncq495

subject

Has Abstract

pub_date

2011-11-01 00:00:00

pages

417-22

issue

3

eissn

0144-8420

issn

1742-3406

pii

ncq495

journal_volume

147

pub_type

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