LIU Min-Liang1,2, ZHANG Yu-Hu1,2, ZHOU Xiao-Hong1, GUO Ying-Xiang1, LEI Xiang-Guo1, LIU Zhong1, HE Jian-Jun1, WEN Shu-Xian3, WU Xiao-Guang3, YUAN Guan-Jun3
1Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000
2Graduate School, Chinese Academy of Sciences, Beijing 100039
3China Institute of Atomic Energy, Beijing 102413
1Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000
2Graduate School, Chinese Academy of Sciences, Beijing 100039
3China Institute of Atomic Energy, Beijing 102413
Abstract：Excited states in 142Pm are investigated via the 128Te(19F, 5n)142Pm reaction at beam energies from 75 to 95 MeV by using techniques of in-beam γ-ray spectroscopy. Measurements of γ-ray excitation function, X-γ and γ-γ-t coincidences are performed with 10 BGO(AC)HPGe detectors. Decay of the previously known 67-μs isomer in 142Pm is observed and added into the new level scheme. This isomer is definitely placed at the excitation energy of 2828.5 keV. The spin of this isomer is suggested to be 13ħ according to the measured γ-ray anisotropies.
LIU Min-Liang;ZHANG Yu-Hu;ZHOU Xiao-Hong;GUO Ying-Xiang;LEI Xiang-Guo;LIU Zhong;HE Jian-Jun;WEN Shu-Xian;WU Xiao-Guang;YUAN Guan-Jun. Decay of the 67-μs Isomer in 142Pm[J]. 中国物理快报, 2004, 21(4): 626-628.
LIU Min-Liang, ZHANG Yu-Hu, ZHOU Xiao-Hong, GUO Ying-Xiang, LEI Xiang-Guo, LIU Zhong, HE Jian-Jun, WEN Shu-Xian, WU Xiao-Guang, YUAN Guan-Jun. Decay of the 67-μs Isomer in 142Pm. Chin. Phys. Lett., 2004, 21(4): 626-628.
MA Long;ZHOU Xiao-Hong;XING Ye-Bing;ZHANG Yu-Hu;GUO Ying-Xing;LEI Xiang-Guo;XIE Chen-Ying;Oshima M.;Toh Y.;Koizumi M.;Osa A.;Hatsukawa Y.;Sugawara M.. Properties of the πh9/2 otimes νi13/2 Oblate Band in 188Tl[J]. 中国物理快报, 2006, 23(7): 1727-1730.
CHE Xing-Lai;ZHU Sheng-Jiang;J. H. Hamilton;A. V. Ramayya;J. K. Hwang;J. O. Rasmussen;Y. X. Luo;CHEN Yong-Jing;LI Ming-Liang;DING Huai-Bo;U Yong-Nam;I. Y. Lee;W. C. Ma. High Spin Band Structure in 112Ru[J]. 中国物理快报, 2006, 23(2): 328-331.
2004, Vol. 21 
