Measurement of Low Energy Beta-Emitters in Aqueous Solution by Liquid Scintillation Counting of Emulsions.

1965 ◽  
Vol 37 (7) ◽  
pp. 854-857 ◽  
Author(s):  
M. S. Patterson ◽  
R. C. Greene
Keyword(s):  
Aqueous Solution ◽  
Liquid Scintillation Counting ◽  
Liquid Scintillation ◽  
Scintillation Counting ◽  
Low Energy ◽  
Beta Emitters

Optimisation of liquid scintillation counting conditions to determine low activity levels of tritium and radiostrontium in aqueous solution

The Analyst ◽  
1990 ◽  
Vol 115 (8) ◽  
pp. 1097 ◽  
Author(s):  
Gemma Rauret ◽  
Joan S. Mestres ◽  
Merc� Ribera ◽  
Pilar Rajadel
Keyword(s):  
Aqueous Solution ◽  
Liquid Scintillation Counting ◽  
Liquid Scintillation ◽  
Scintillation Counting ◽  
Activity Levels ◽  
Low Activity

scholarly journals Time-domain based evaluation of detection efficiency in liquid scintillation counting

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Krasimir Mitev ◽  
Chavdar Dutsov ◽  
Philippe Cassette ◽  
Benoît Sabot
Keyword(s):  
Electron Capture ◽  
Time Domain ◽  
Liquid Scintillation Counting ◽  
Liquid Scintillation ◽  
Cross Correlation ◽  
Detection Efficiency ◽  
Scintillation Counting ◽  
Low Energy ◽  
Correlation Distribution ◽  
The Cross

AbstractThis work explores the distribution of time intervals between signals from the photomultiplier tubes (PMTs) of a liquid scintillation counting (LSC) system when a scintillation burst caused by an ionizing particle is detected. This distribution is termed the cross-correlation distribution and it is shown that it contains information about the probability to detect a scintillation event. A theoretical model that describes the cross-correlation distribution is derived. The model can be used to estimate the mean number of detected photons in a LSC measurement, which allows the calculation of the detection efficiency. The theoretical findings are validated by Monte Carlo simulations and by experiments with low-energy beta-emitting and electron-capture radionuclides ($$^3\hbox {H}$$ 3 H , $$^{14}\hbox {C}$$ 14 C , $$^{63}\hbox {Ni}$$ 63 Ni and $$^{55}\hbox {Fe}$$ 55 Fe ), with dedicated LSC systems and several commercial LSC cocktails. The results show that some of the parameters of the cross-correlation distribution such as the peak height or the kurtosis can be used as detection efficiency estimators or quenching indicators in LSC. Thus, although the time domain and the cross-correlation distribution have received little to no attention in the practice of LSC, they have the capacity to bring significant improvements in almost all LSC applications related to activity determination of low-energy beta-emitting and electron-capture radionuclides. The results also suggest concepts for the development of innovative LSC systems.

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