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NSR database version of April 27, 2024.

Search: Author = E.Watanabe

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2022KA01      Appl.Radiat.Isot. 179, 110006 (2022)

Y.Kasamatsu, M.Nagase, H.Ninomiya, E.Watanabe, Y.Shigekawa, N.Kondo, K.Takamiya, T.Ohtsuki, N.Shiohara, A.Shinohara

Coprecipitation with samarium hydroxide using multitracer produced through neutron-induced fission of ²³⁵U toward chemical study of heavy elements

NUCLEAR REACTIONS U(n, F)²⁴Na/⁹¹Sr/¹⁴⁰Ba/¹⁴⁰La/¹⁴¹Ce/¹⁴³Ce/¹⁵¹Pm/⁹⁵Zr/⁹⁷Zr/¹⁰³Ru/¹³¹I/¹³³I, E thermal; measured reaction products, Eγ, Iγ. ²³⁹Np; deduced coprecipitation yields. The research reactor in Institute for Integrated Radiation and Nuclear Science, Kyoto University (KURNS).

doi: 10.1016/j.apradiso.2021.110006
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2019SH38      Phys.Rev. C 100, 044304 (2019)

Y.Shigekawa, Y.Kasamatsu, E.Watanabe, H.Ninomiya, S.Hayami, N.Kondo, Y.Yasuda, H.Haba, A.Shinohara

Observation of internal-conversion electrons emitted from ^229mTh produced by β decay of ²²⁹Ac

RADIOACTIVITY ²²⁹Ac(β^-)[from ²³²Th(p, α), E=20 MeV, followed by chemical separation of ²²⁹Ac and preparation of an electrodeposited source at RCNP, Osaka University]; measured Eγ, ce, I(ce), β(ce)-coin, β(ce)(t). ^229mTh; deduced level, half-life of the 8.28-eV isomer.

doi: 10.1103/PhysRevC.100.044304
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