| 刘良军.220Rn室中220Rn浓度的调控研究[J].南华大学学报(自然科学版),2007,21(2):16~19.[.Study of 220Rn concentration control of 220Rn chamber[J].Journal of University of South China(Science and Technology),2007,21(2):16~19.] |
| 220Rn室中220Rn浓度的调控研究 |
| Study of 220Rn concentration control of 220Rn chamber |
| 投稿时间：2006-12-25 |
| DOI： |
| 中文关键词: 220Rn室,220Rn子体,浓度控制 |
| 英文关键词:220Rn chamber,220Rn Progeny,concentration control |
| 基金项目:湖南省科技厅重点资助项目(05FJ2003) |
| 刘良军 |
| 南华大学氡实验室 湖南衡阳421001 |
| 摘要点击次数: 691 |
| 全文下载次数: 4 |
| 中文摘要: |
| 描述了220Rn室的结构.探讨了用延时法调节220Rn浓度的方法.该方法可有效的调节箱体中220Rn浓度.用檀香燃烧的烟气作为气溶胶注入箱体中,测量了箱体中ThB(212Pb)浓度和气溶胶的关系.箱体中的气溶胶粒子浓度需大于104P/m3以上才能有效建立箱体中的ThB浓度.烟气气溶胶会堵塞气路,污染探测元件,有待以后研究改进. |
| 英文摘要: |
| The structure of 220Rn chamber is described.The method of time-delay for control 220Rn concentration in the box is determined.The method can control the concentration of 220Rn effectively.The smoke of sandalwood is filled into the chamber as aerosol.The relation between the concentration of 212Pb and aerosol is measured.In order to accumulate 212Pb concentration in the box,the aerosol concentration must be more than 104 P/m3.It needs to improve,because the fume can plug gas circuit and contaminate the detective elements. |
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