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Andel, B.*; Andreyev, A. N.; Antalic, S.*; Al Monthery, M.*; Barzakh, A.*; Bissell, M. L.*; Chrysalidis, K.*; 他29名*
Physical Review C, 102(1), p.014319_1 - 014319_12, 2020/07
被引用回数:6 パーセンタイル:60.4(Physics, Nuclear)-delayed fission (DF) decay of a low-spin (ls) and a high-spin (hs) isomer in Bi was studied at the ISOLDE facility at CERN. Their DF partial half-lives were determined: , DF(Bi)= 5.6(8) 10 s and , DF(Bi)=1.7(6) 10 s. This work is the first DF study of two states in one isotope and allows the spin dependence of low-energy fission to be explored. The fission fragment mass distribution of a daughter nuclide Pb, following the decay of the high-spin isomer, was deduced and indicates a mixture of symmetric and asymmetric fission modes.
Chrysalidis, K.*; Barzakh, A. E.*; Ahmed, R.*; Andreyev, A. N.; Ballof, J.*; Cubiss, J. G.*; Fedorov, D. V.*; Fedosseev, V. N.*; Fraile, L. M.*; Harding, R. D.*; et al.
Nuclear Instruments and Methods in Physics Research B, 463, p.472 - 475, 2020/01
被引用回数:3 パーセンタイル:36.99(Instruments & Instrumentation)放射壊変によって生成された多数のジスプロシウム同位体について、ISOLDEのレーザー共鳴イオン源(RILIS)を用いてイオン源内レーザー分光法によって研究した。Dyに対する相対的な同位体シフトを (gs) 共鳴遷移を用いて測定した。電子的因子Fとマスシフト因子Mを導出し、それらを使ってDyとDyの平均自乗荷電半径の変化を初めて決定した。