Optimization of Counting Conditions on Tritium Measurement in LSC Considering Volume Effect

CHEN Zhilin; MENG Dan; LI Junli; QIU Rui; WANG Heyi

doi:10.11804/NuclPhysRev.31.01.058

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CHEN Zhilin, MENG Dan, LI Junli, QIU Rui, WANG Heyi. Optimization of Counting Conditions on Tritium Measurement in LSC Considering Volume Effect[J]. Nuclear Physics Review, 2014, 31(1): 58-62. doi: 10.11804/NuclPhysRev.31.01.058

Citation:

CHEN Zhilin, MENG Dan, LI Junli, QIU Rui, WANG Heyi. Optimization of Counting Conditions on Tritium Measurement in LSC Considering Volume Effect[J]. Nuclear Physics Review, 2014, 31(1): 58-62. doi: 10.11804/NuclPhysRev.31.01.058

Optimization of Counting Conditions on Tritium Measurement in LSC Considering Volume Effect

doi: 10.11804/NuclPhysRev.31.01.058

Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics,Mianyang 621900, Sichuan , China;

Received Date: 1900-01-01
Rev Recd Date: 1900-01-01
Publish Date: 2014-03-20

Abstract

The influence of sample volume and cocktail quantity on tritium measurement in liquid scintillation counter (LSC) was investigated experimentally in this paper to optimize the counting conditions. Results indicate that the optimal counting volume is between 7 mL and 17 mL using 22 mL glass vials, which should be mainly attributed to the sensitive character of photon multiplier tubes(PMTs) in LSC. With the obtained optimal volume, we also present the detailed procedure to determine the influence of cocktail quantity, which shows that the ratio of cocktail and sample water should be kept higher than 2.4 to obtain accurate results. In addition, experiments on the influence of light were also performed with pure cocktail and results indicate that 2 h is long enough to eliminate luminescence before counting.
- tritium measurement,
- LSC,
- volume effect,
- counting condition
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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

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Optimization of Counting Conditions on Tritium Measurement in LSC Considering Volume Effect

doi: 10.11804/NuclPhysRev.31.01.058

Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics,Mianyang 621900, Sichuan , China;

Received Date: 1900-01-01
Rev Recd Date: 1900-01-01
Publish Date: 2014-03-20

Key words:

Abstract: The influence of sample volume and cocktail quantity on tritium measurement in liquid scintillation counter (LSC) was investigated experimentally in this paper to optimize the counting conditions. Results indicate that the optimal counting volume is between 7 mL and 17 mL using 22 mL glass vials, which should be mainly attributed to the sensitive character of photon multiplier tubes(PMTs) in LSC. With the obtained optimal volume, we also present the detailed procedure to determine the influence of cocktail quantity, which shows that the ratio of cocktail and sample water should be kept higher than 2.4 to obtain accurate results. In addition, experiments on the influence of light were also performed with pure cocktail and results indicate that 2 h is long enough to eliminate luminescence before counting.

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