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LI Wei; JI Weixing; YE Tiannan; LI Dong; LIU Hanzhou; WEN Wanxin

doi:10.11889/j.1000-3436.2015.rrj.33.020602

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更新时间：2021-12-01

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- Journal of Radiation Research and Radiation Processing Vol. 33, Issue 2, Pages: 20602-020602(2015)
- 作者机构：
  
  1. （苏州大学医学部放射医学与防护学院江苏省放射医学与防护学院重点实验室）,苏州,215123
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- DOI：10.11889/j.1000-3436.2015.rrj.33.020602
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LI Wei, JI Weixing, YE Tiannan, et al. [J]. Journal of Radiation Research and Radiation Processing 33(2):20602-020602(2015)
DOI：

LI Wei, JI Weixing, YE Tiannan, et al. [J]. Journal of Radiation Research and Radiation Processing 33(2):20602-020602(2015) DOI： 10.11889/j.1000-3436.2015.rrj.33.020602.

摘要

为了准确掌握分子筛床在现场的实际防护效果，需要进行含氚（氚化水，HTO）空气穿透实验。将露点一定、氚浓度一定的普通氮气以稳定的流速通过分子筛床，并连续测量气体通过分子筛床前后氚浓度的变化和分子筛床穿透前后的质量变化，从而确定分子筛床在现场实际环境中的防氚效果。实验结果表明，无水分子筛床的氚化水吸附效果最好，4 h之内的过滤效率保持在95%以上，过滤效率高，使用时间长；1/3吸水的分子筛床的吸附效果较好，3 h之内过滤效率保持在90%以上。综合考虑使用舒适度和过滤效能，1/3吸水的分子筛床更适合用于现场的实际氚防护。

Abstract

In order to accurately grasp the actual protection effect of molecular sieve in the spot, it is necessary to take the experiment of tritium air (HTO) penetration experiment. With the nitrogen with certain dew point and tritium concentration passing through the molecular sieve with a steady flow and continuous measuring the changes of tritium concentration before and after the molecular sieve as well as the quality changes before and after the penetration, the tritium protection effect of molecular sieve in actual environment was determined. The experimental results show that the tritiated water adsorption effect of anhydrous molecular sieve is the best: the filtration efficiency within 4 h stays above 95% which has high efficiency and stays for a long time; the molecular sieve with 1/3 absorbed water shows a good performance which has a filtration efficiency maintaining above 90% within 3 h. Considering the comfortable degree and filtration efficiency, molecular sieve with 1/3 absorbed water is more suitable for practical tritium protection field.Cited

关键词

辐射防护分子筛床吸附效率氚化水氚活度

Keywords

Radiation protectionMolecular sieve bedAdsorption efficiencyTritiated waterTritium activity

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DOI：10.11889/j.1000-3436.2015.rrj.33.020602

摘要

Abstract

关键词

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