溶存Kr-85 の脱離,(1)脱離方法とその効果
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概要
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When unsealed <SUP>85</SUP>Kr β-irradiation facilities are used for chemical reactions in liquid phase, the <SUP>85</SUP>Kr gas must be removed from the reaction system after irradiation, and the radioactive concentration reduced to a level below (MPC)<SUB>w</SUB>. Removal experiments were carried out with water and with an aqueous solution of polyacrylamide using a reaction vessels of 1l capacty containing a <SUP>85</SUP>Kr radiation source of 290Ci. The methods of removal and the results obtained therewith are discussed.<BR>The removal is accomplished by the combined use of freeze-pump-thaw cycles, N<SUB>2</SUB>-stripping and standing at room temperature. The overall decontamination factor reaches 10<SUP>8</SUP>.
- 一般社団法人 日本原子力学会の論文
一般社団法人 日本原子力学会 | 論文
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