TDCR液闪分析仪Hidex 300SL和SIM-MAX LSA3000在β核素测量中的性能比较

Abstract

Abstract: In this experiment, the performance differences of two TDCR liquid scintillation analyzers were compared by measuring the samples with different activities. The results show that the background and minimum detectable activity of SIM-MAX LSA3000 are lower, and the measurement of low activity samples is superior than that of Hidex 300SL. The TDCR quenching and correcting method was used to measure the conventional activity samples. The accuracy of the two liquid scintillation analyzers was good, the error was less than 1.5%, and the uncertainty (k = 2) was less than 2%. For the high activity samples whose counting rate is more than 1×10⁵ cpm, the results of the two liquid scintillation analyzers are larger than the real data, especially the SIM-MAX LSA3000.

Key words: TDCR, Hidex 300SL, SIM-MAX LSA3000, liquid scintillation analysis

CLC Number:

TL812+.2

ZHANG Hui, YANG Yonggang, MA Yan, DAI Xiongxin. Comparison of TDCR liquid scintillation analysis counters Hidex 300SL and SIM-MAX LSA3000 in the measurement of β-nuclides[J].RADIATION PROTECTION, 2021, 41(2): 105-111.

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Comparison of TDCR liquid scintillation analysis counters Hidex 300SL and SIM-MAX LSA3000 in the measurement of β-nuclides

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