JOPSS - Search Results

Journal Articles

Fluoride complexation of element 104, rutherfordium

Haba, Hiromitsu*; Tsukada, Kazuaki; Asai, Masato; Toyoshima, Atsushi; Akiyama, Kazuhiko; Nishinaka, Ichiro; Hirata, Masaru; Yaita, Tsuyoshi; Ichikawa, Shinichi; Nagame, Yuichiro; et al.

Journal of the American Chemical Society, 126(16), p.5219 - 5224, 2004/04

https://doi.org/10.1021/ja031824u

Times Cited Count：43 Percentile：72.51(Chemistry, Multidisciplinary)

Fluoride complexation of element 104, rutherfordium (Rf), produced in the $^{248}$ Cm( $^{18}$ O,5n) $^{261}$ Rf reaction has been studied by anion-exchange chromatography on an atom-at-a-time scale. The anion-exchangechromatographic behavior of Rf was investigated in 1.9-13.9 M hydrofluoric acid together with those of the group-4 elements Zr and Hf produced in the $^{18}$ O-induced reactions on Ge and Gd targets, respectively. It was found that the adsorption behavior of Rf on anion-exchange resin is quite different from those of Zr and Hf, suggesting the influence of relativistic effect on the fluoride complexation of Rf.

Journal Articles

Chemical studies of the heaviest elements

Nagame, Yuichiro; Haba, Hiromitsu*; Tsukada, Kazuaki; Asai, Masato; Toyoshima, Atsushi; Goto, Shinichi*; Akiyama, Kazuhiko; Kaneko, Tetsuya; Sakama, Minoru*; Hirata, Masaru; et al.

Nuclear Physics A, 734, p.124 - 135, 2004/04

https://doi.org/10.1016/j.nuclphysa.2004.01.021

Times Cited Count：11 Percentile：56.88(Physics, Nuclear)

no abstracts in English

Journal Articles

Isothermal gas chromatography of chlorides of Zr and Hf as Rf homologs

Kaneko, Tetsuya*; Ono, Sawako*; Goto, Shinichi*; Haba, Hiromitsu; Asai, Masato; Tsukada, Kazuaki; Nagame, Yuichiro; Kudo, Hisaaki*

Journal of Radioanalytical and Nuclear Chemistry, 255(2), p.381 - 384, 2003/02

https://doi.org/10.1023/A:1022577409113

Times Cited Count：0 Percentile：0.01(Chemistry, Analytical)

no abstracts in English

Journal Articles

Identification of the new isotope $^{241}$ Bk

Asai, Masato; Tsukada, Kazuaki; Ichikawa, Shinichi; Sakama, Minoru*; Haba, Hiromitsu*; Nagame, Yuichiro; Nishinaka, Ichiro; Akiyama, Kazuhiko; Toyoshima, Atsushi; Kaneko, Tetsuya*; et al.

European Physical Journal A, 16(1), p.17 - 19, 2003/01

https://doi.org/10.1140/epja/i2002-10112-y

Times Cited Count：8 Percentile：50.24(Physics, Nuclear)

The new isotope $^{241}$ Bk has been identified for the first time using a gas-jet coupled on-line isotope separator at the JAERI tandem accelerator facility. Characteristic X rays and three transitions associated with the EC decay of $^{241}$ Bk have been observed, and the half-life was determined to be 4.6 min. The half-life value and the observed -ray energies and intensities can be consistently explained as a consequence of the allowed EC transition of $pi 7/2^{+}[633]$ $nu 7/2^{+}[624]$ .

Journal Articles

Transactinide nuclear chemistry at JAERI

Nagame, Yuichiro; Haba, Hiromitsu; Tsukada, Kazuaki; Asai, Masato; Akiyama, Kazuhiko; Hirata, Masaru; Nishinaka, Ichiro; Ichikawa, Shinichi; Nakahara, Hiromichi; Goto, Shinichi*; et al.

Czechoslovak Journal of Physics, 53, p.A299 - A304, 2003/00

https://doi.org/10.1007/s10582-003-0038-3

Times Cited Count：7 Percentile：46.52(Physics, Multidisciplinary)

no abstracts in English

Journal Articles

Anion-exchange behavior of Rf in HCl and HNO $_{3}$ solutions

Haba, Hiromitsu; Tsukada, Kazuaki; Asai, Masato; Goto, Shinichi*; Toyoshima, Atsushi; Nishinaka, Ichiro; Akiyama, Kazuhiko; Hirata, Masaru; Ichikawa, Shinichi; Nagame, Yuichiro; et al.

Journal of Nuclear and Radiochemical Sciences, 3(1), p.143 - 146, 2002/06

https://doi.org/10.14494/jnrs2000.3.143

We have investigated the sorption behavior of element 104 rutherfordium (Rf) on an anion exchange resin from HCl and HNO $_{3}$ solutions. In the HCl experiments, the distribution coefficients of Rf increase with an increase of HCl concentration from 7.0 M to 11.5 M, indicating that anionic species such as [Rf(OH)Cl $_{5}$ ] $^{2-}$ or [RfCl $_{6}$ ] $^{2-}$ are formed. This sorption behavior of Rf is typical of the group-4 elements Zr and Hf, and is quite different from that of the pseudo-homologue Th. It is also noted that the distribution coefficients decrease in the order Rf, Zr, Hf at 9.0 M HCl, which is consistent with the expected order of ionic radii. On the other hand, Rf appears to behave like Zr and Hf in 8 M HNO $_{3}$ not like Pu and Th.

Journal Articles

Startup of transactinide chemistry in JAERI

Haba, Hiromitsu; Tsukada, Kazuaki; Asai, Masato; Nishinaka, Ichiro; Sakama, Minoru*; Goto, Shinichi*; Hirata, Masaru; Ichikawa, Shinichi; Nagame, Yuichiro; Kaneko, Tetsuya*; et al.

Radiochimica Acta, 89(11-12), p.733 - 736, 2002/02

https://doi.org/10.1524/ract.2001.89.11-12.733

Times Cited Count：14 Percentile：68.97(Chemistry, Inorganic & Nuclear)

no abstracts in English

Journal Articles

None

; Kaneko, Hiromitsu; ;

Genshiryoku Kogyo, 36(10), p.47 - 52, 1990/10

http://ci.nii.ac.jp/naid/40001073810

None

JAEA Reports

The Study on the corrosion of pool components by the evaluation of micro-elements variation in fuel storage water, 1984

Takeda, Korehiro; Kaneko, Hiromitsu; Watanabe, Kazuyoshi; Ochiai, Kazuya

PNC TN841 84-63, 10 Pages, 1984/10

PNC-TN841-84-63.pdf:0.12MB

This study was started in 1982 as the part of BEFAST programme. In this year (1984), periodical measurements of the concentrations of micro-element (Fe,Ni,Cr)in the pool water continuously perform and the results were statistically compared with the results of 1983. It seems that nosignifi

JAEA Reports