Bull.Rus.Acad.Sci.Phys. 67, 7 (2003)

S.A.Kudrya, V.M.Gorozhankin, K.Ya.Gromov, Sh.R.Malikov, L.A.Malov, V.A.Sergienko, V.I.Fominykh, V.V.Tsupko-Sitnikov, V.G.Chumin, E.A.Yakushev

²²⁵Ac → ²²¹Fr alpha decay

RADIOACTIVITY ²²⁵Ac(α) [from ²²⁹Th decay]; measured Eα, Iα, Eγ, Iγ, E(ce), I(ce), αγ-coin; deduced hindrance factors. ²²¹Fr deduced levels, J, π, configurations. Quasiparticle-phonon model analysis.