EC and α decays of 235Am

M. Asai, M. Sakama, K. Tsukada, S. Ichikawa, H. Haba, I. Nishinaka, Y. Nagame, S. Goto, Y. Kojima, Y. Oura, H. Nakahara, M. Shibata, K. Kawade

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Abstract

EC and α decays of 235Am have been studied using a gas-jet coupled on-line isotope separator. Excited states in 235Pu have been established for the first time by means of γ-ray spectroscopy following the EC decay of 235Am. The deduced log ft value suggests that the ground state of 235Am should have the π5/2-[523] configuration. The α-γ coincidence result has revealed that the π5/2-[523] state in 231Np populated by the favored α transition of 235Am is located at < 15 keV, which allows us to precisely determine the Qα value of 235Am.

Original languageEnglish
Pages (from-to)411-416
Number of pages6
JournalEuropean Physical Journal A
Volume22
Issue number3
DOIs
Publication statusPublished - Dec 1 2004
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

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    Asai, M., Sakama, M., Tsukada, K., Ichikawa, S., Haba, H., Nishinaka, I., Nagame, Y., Goto, S., Kojima, Y., Oura, Y., Nakahara, H., Shibata, M., & Kawade, K. (2004). EC and α decays of 235Am. European Physical Journal A, 22(3), 411-416. https://doi.org/10.1140/epja/i2004-10044-6