Development of a new continuous dissolution apparatus with a hydrophobic membrane for superheavy element chemistry

作者：Ooe K^*; Attallah M F; Asai M; Goto N; Gupta N S; Haba H; Huang M; Kanaya J; Kaneya Y; Kasamatsu Y; Kitatsuji Y; Kitayama Y; Koga K; Komori Y; Koyama T; Kratz J V; Lerum H V; Miyashita S; Oshimi Y; Pershina V; Sato D; Sato T K; Shigekawa Y; Shinohara A; Tanaka A; Toyoshima A; Tsukada K; Tsuto S; Yokokita T; Yokoyama A; Omtvedt J P; Nagame Y; Schaedel M

来源：Journal of Radioanalytical and Nuclear Chemistry, 2015, 303(2): 1317-1320.

DOI：10.1007/s10967-014-3469-3

• Molybdenum
• Tungsten
• Gas-jet transport
• Continuous dissolution
• Hydrophobic membrane

A new technique for continuous dissolution of nuclear reaction products transported by a gas-jet system was developed for superheavy element (SHE) chemistry. In this technique, a hydrophobic membrane is utilized to separate an aqueous phase from the gas phase. With this technique, the dissolution efficiencies of short-lived radionuclides of Mo-91m,Mo-93m and W-176 were measured. Yields of more than 80 % were observed for short-lived radionuclides at aqueous-phase flow rates of 0.1-0.4 mL/s. The gas flow-rate had no influence on the dissolution efficiency within the studied flow range of 1.0-2.0 L/min. These results show that this technique is applicable for on-line chemical studies of SHEs in the liquid phase.

• 出版日期2015-2
• 单位RIKEN