Experimental Study of Level Structure in <SUP>207</SUP>Rn

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; WEN Shu-Xian

Chinese Physics C> 2003, Vol. 27> Issue(5) : 402-405

Experimental Study of Level Structure in ²⁰⁷Rn

Institute of Modern Physics,The Chinese Academy of Sciences,Lanzhou 730000,China2 China Institute of Atomic Energy,Beijing 102413,China

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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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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.

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Received: 2002-06-13
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

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

Received Date: 2002-06-13

Accepted Date: 1900-01-01

Available Online: 2003-05-05

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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Experimental Study of Level Structure in 207Rn

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Experimental Study of Level Structure in 207Rn

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Experimental Study of Level Structure in ²⁰⁷Rn

Experimental Study of Level Structure in ²⁰⁷Rn