Phys.Rev. C 82, 044302 (2010)

U.Jakobsson, J.Uusitalo, S.Juutinen, M.Leino, P.Nieminen, K.Andgren, B.Cederwall, P.T.Greenlees, B.Hadinia, P.Jones, R.Julin, S.Ketelhut, A.Khaplanov, M.Nyman, P.Peura, P.Rahkila, P.Ruotsalainen, M.Sandzelius, J.Saren, C.Scholey, J.Sorri

Prompt and delayed spectroscopy of ¹⁹⁹At

NUCLEAR REACTIONS ¹⁵⁰Sm(⁵²Cr, 2np), E=231 MeV; ¹²⁰Sn(⁸²Kr, 2np), E=355 MeV; ¹⁶⁵Ho(⁴⁰Ar, 6n), E=200 MeV; measured Eγ, Iγ, Eα, ce, γγ-, γα-, (particle)γ-coin, isomer half-lives using JUROGAM array and GREAT spectrometer. Recoil-decay tagging method. Prompt and delayed γ spectra. ¹⁹⁹At; deduced levels, J, π, conversion coefficients, multipolarities, B(M2), isomers, configurations. ¹⁹⁷At; analyzed previous γ-ray data; deduced levels, J, π, bands. Systematics of energy levels of N=106-126 At nuclei. Systematics of B(M1)/B(E2) ratios of ¹⁹³Bi, ^197,199At nuclei. Systematics of kinematic moments of inertia for ¹⁹³Bi, ^192,194,196Po, ^197,199At, ¹⁹⁸Rn nuclei.

RADIOACTIVITY ¹⁹⁶Po, ^198,199At, ^199,200Rn(α); measured Eα.

doi: 10.1103/PhysRevC.82.044302