Fluoro complex formation of Rf and Db

Nagame, Yuichiro ; Akiyama, Kazuhiko*; Asai, Masato ; Goto, Shinichi*; Haba, Hiromitsu*; Ishii, Yasuo; Kasamatsu, Yoshitaka; Nishinaka, Ichiro; Sato, Tetsuya ; Tome, Hayato*; Toyoshima, Atsushi; Tsukada, Kazuaki

We present a study of fluoro complex formation of the transactinide elements, rutherfordium (Rf) and dubnium (Db), at JAEA (Japan Atomic Energy Agency). The transactinide nuclides $^{261}$ Rf and $^{262}$ Db were produced in the reactions $^{248}$ Cm( $^{18}$ O,5n) and $^{248}$ Cm( $^{19}$ F,5n), respectively, at the JAEA tandem accelerator. Ion-exchange behavior of Rf and Db together with their lighter homologues in HF/HNO $_{3}$ mixed solutions has been investigated with a rapid ion-exchange separation apparatus AIDA. It has been found that fluoro complexation of Rf is significantly different from that of the homologues. A large difference in the adsorption behavior of Db and the homologue Ta on the anion-exchange resin has been also observed.

Language	:	English
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Meeting title	:	7th International Conference on Nuclear and Radiochemistry (NRC-7)
Held date	:	2008/08
Location (city)	:	Budapest
Location (country)	:	Hungary
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Keywords	:	no keyword
Research Facility	:	タンデム加速器
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Registration No. : BB20081167
JAEA Abstracts No. :
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