Experimental Study of Level Structure in 207Rn

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LUO Wan-Ju, GUO Ying-Xiang, ZHOU Xiao-Hong, ZHANG Yu-Hu, LEI Xiang-Guo, LIU Zhong, HE Jian-Jun, ZHENG Yong, LIU Min-Liang, ZHU Li-Hua and WEN Shu-Xian. Experimental Study of Level Structure in 207Rn[J]. Chinese Physics C, 2003, 27(5): 402-405.
LUO Wan-Ju, GUO Ying-Xiang, ZHOU Xiao-Hong, ZHANG Yu-Hu, LEI Xiang-Guo, LIU Zhong, HE Jian-Jun, ZHENG Yong, LIU Min-Liang, ZHU Li-Hua and WEN Shu-Xian. Experimental Study of Level Structure in 207Rn[J]. Chinese Physics C, 2003, 27(5): 402-405. shu
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Received: 2002-06-13
Revised: 1900-01-01
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Experimental Study of Level Structure in 207Rn

    Corresponding author: LUO Wan-Ju,
  • Institute of Modern Physics,The Chinese Academy of Sciences,Lanzhou 730000,China2 China Institute of Atomic Energy,Beijing 102413,China

Abstract: High spin states of 207Rn have been investigated via the 196Pt(16O,5n)207Rn reaction at 16O energies from 85 to 95 MeV using techniques of in beam γ-ray spectroscopy. The measurements of γ-ray excitation fuction,γ-ray spectra,γ-γ-t coincidences and decay γ ray spectra were performed with 10 BGO(AC)HPGe detectors.Based on these measurements,a level scheme of 207Rn with 17 γ rays is established. The spins for most of the levels in the scheme are proposed according to the results of measured γ-ray DCO ratios. Comparing the structure between 208Rn and 207 Rn, the low lying levels in 207Rn are interpreted by coupling a valence neutron hole (f 5/2) to the excited states in 208Rn core.

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