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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*; Oura, Yasuji*; Kojima, Yasuaki*; Shibata, Michihiro*

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 $$gamma$$ 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 $$gamma$$-ray energies and intensities can be consistently explained as a consequence of the allowed EC transition of $$pi 7/2^{+}[633]$$ $$rightarrow$$ $$nu 7/2^{+}[624]$$.

Language

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English

Journal

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European Physical Journal A

Volume

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16

Number

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1

Pages

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p.17 - 19

Publication Year/Month

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2003/01

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Held date

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Patent information

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PDF

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Paper URL

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

DOI for research data

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Keywords

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Bk-241; Cm-241; Mass Separation; Half-life; EC Decay

Research Facility

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Press Release

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Article of JAEA R&D Review

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Cooperating Institute

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東京都立大学

Accesses

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- Accesses

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Percentile:50.24

Category:Physics, Nuclear

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