Journal of Radiation Research and Radiation Processing, Volume. 43, Issue 3, 030601-1(2025)
Figures & Tables(5)
Fig. 1. Flow chat of 14C direct analysis method for environmental water samples
Fig. 2. Measured spectra of the environmental water samples (color online)
Table 1. Distribution of sampling location
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编号No. 取样位置 Sampling location 1 雨水总排口下游河道
River downstream of the main rainwater outlet
2 雨水总排口上游河道
River upstream of the main rainwater outlet
3 雨水总排口 Rainwater main outlet 4 园区污水井 Sewage well of the park 5 衰变池采样口 Sampling port of the decay pool 6 雨水井 Rainwater well 7 衰变池一级 Decay pool level 1 8 衰变池二级 Decay pool level 2
Table 2. Measurement results of samples (No. 1~8)
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编号
No.
样品计数率 / min-1
Counting rate of
sample
内标液计数率 / min-1
Counting rate of internal
standard sample
内标液活度 / Bq
Activity of internal
standard sample
探测效率 / %
Detection
efficiency
14C活度浓度 / (Bq∙L-1)
14C activity concentration
of sample
1 2.2 4 734.0 207.0 38.1 <LLD 2 2.1 3 673.2 200.6 30.5 <LLD 3 2.3 4 672.8 201.7 38.6 <LLD 4 62.6 4 588.4 204.9 36.8 342 5 290.9 5 095.5 203.8 39.3 1 531 6 9.0 4 558.8 202.7 37.4 38 7 214.4 4 879.5 207.0 37.6 1 178 8 237.4 4 783.4 205.9 36.8 1 332
Table 3. Measurement results of validation samples
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编号
No.
内标液活度 / Bq
Activity of internal standard sample
探测效率 / %
Detection efficiency
14C活度浓度 / (kBq∙L-1)
14C activity concentration of sample
参考值Reference value 测量值Measured value V1 3 382 36.6 25.9 25.7 V2 3 510 37.0 25.2 24.9
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Lixin GE, Gang HAN, Chao ZHAO.
Paper Information
Category: RADIATION PROTECTION
Received: Oct. 19, 2024
Accepted: Dec. 2, 2024
Published Online: Jul. 7, 2025
The Author Email: Lixin GE (gelix68@126.com)
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