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节能型空气中14C取样装置的研制

Guanglin Ruan,Zheng Chang

Radiation Protection Bulletin（2006）

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Abstract
研制了空气中14C的取样装置,基本原理是:对取样气体催化氧化、碱溶液吸收制成凝胶样品、液闪测量.催化氧化床采用了新型材料,可使使用温度降到300℃.对样品的化学处理、取样效率、催化氧化效率等作了测量.该装置对CO2的捕集效率为95%.利用该装置对环境中的14C进行取样测量,其结果在非核环境中14C的浓度为0.13 Bq/m3,在加速器环境中14C的浓度为2～3 Bq/m3.
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~(14)C Environmental monitor Sampling device
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