Properties of βdelayed Proton Decay of <SUP>145</SUP>Er

MA Fei; ZHOU Xiao-hong; #; ZHENG Yong; XU Shu-wei; XIE Yuan-xiang; CHEN Liang; ZHANG Yu-hu; LI Zhan-kui; QIANG Yun-hua; LEI Xiang-guo; GUO Ying-xiang; GUO Song; DING Bing; WANG Hai-xia; LI Guang-shun; ZHOU Hou-bing

doi:10.11804/NuclPhysRev.27.03.252

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Article Navigation > Nuclear Physics Review > 2010 > 27(3): 252-256

MA Fei, ZHOU Xiao-hong, #, ZHENG Yong, XU Shu-wei, XIE Yuan-xiang, CHEN Liang, ZHANG Yu-hu, LI Zhan-kui, QIANG Yun-hua, LEI Xiang-guo, GUO Ying-xiang, GUO Song, DING Bing, WANG Hai-xia, LI Guang-shun, ZHOU Hou-bing. Properties of βdelayed Proton Decay of 145Er[J]. Nuclear Physics Review, 2010, 27(3): 252-256. doi: 10.11804/NuclPhysRev.27.03.252

Citation:

MA Fei, ZHOU Xiao-hong, #, ZHENG Yong, XU Shu-wei, XIE Yuan-xiang, CHEN Liang, ZHANG Yu-hu, LI Zhan-kui, QIANG Yun-hua, LEI Xiang-guo, GUO Ying-xiang, GUO Song, DING Bing, WANG Hai-xia, LI Guang-shun, ZHOU Hou-bing. Properties of βdelayed Proton Decay of ¹⁴⁵Er[J]. Nuclear Physics Review, 2010, 27(3): 252-256. doi: 10.11804/NuclPhysRev.27.03.252

Properties of βdelayed Proton Decay of ¹⁴⁵Er

doi: 10.11804/NuclPhysRev.27.03.252

1 Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China;2 Graduate University of Chinese Academy of Sciences, Beijing 100049, China

Received Date: 1900-01-01
Rev Recd Date: 1900-01-01
Publish Date: 2010-09-20

Abstract

The neutrondeficient isotope ¹⁴⁵Er was produced via the fusionevaporation reaction ⁹²Mo(⁵⁸Ni, 2p3n). The reaction products were transported to a low background counting area using a Hejet tape transport system, and protonγ coincidence measurements were carried out. Based on the analysis of γ transitions in coincidence with βdelayed protons, the βdelayed proton decay of an νh11/2 isomer in ¹⁴⁵Er was proposed. By fitting the decay curves of the γ transitions depopulating the lowlying states in 144Dy, the halflives of the groundstate and the νh11/2 isomeric state in 145Er were deduced to be (1.6±0.6) and (0.6±0.1) s, respectively. An experimental plan to synthesize new βdelayed proton precursors in the mediumheavy mass region has been presented.
- He jet tape transport system,
- neutron deficient isotope,
- βdelayed proton decay
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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

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Properties of βdelayed Proton Decay of ¹⁴⁵Er

doi: 10.11804/NuclPhysRev.27.03.252

1 Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China;2 Graduate University of Chinese Academy of Sciences, Beijing 100049, China

Received Date: 1900-01-01
Rev Recd Date: 1900-01-01
Publish Date: 2010-09-20

Key words:

Abstract: The neutrondeficient isotope ¹⁴⁵Er was produced via the fusionevaporation reaction ⁹²Mo(⁵⁸Ni, 2p3n). The reaction products were transported to a low background counting area using a Hejet tape transport system, and protonγ coincidence measurements were carried out. Based on the analysis of γ transitions in coincidence with βdelayed protons, the βdelayed proton decay of an νh11/2 isomer in ¹⁴⁵Er was proposed. By fitting the decay curves of the γ transitions depopulating the lowlying states in 144Dy, the halflives of the groundstate and the νh11/2 isomeric state in 145Er were deduced to be (1.6±0.6) and (0.6±0.1) s, respectively. An experimental plan to synthesize new βdelayed proton precursors in the mediumheavy mass region has been presented.

Citation:

MA Fei, ZHOU Xiao-hong, #, ZHENG Yong, XU Shu-wei, XIE Yuan-xiang, CHEN Liang, ZHANG Yu-hu, LI Zhan-kui, QIANG Yun-hua, LEI Xiang-guo, GUO Ying-xiang, GUO Song, DING Bing, WANG Hai-xia, LI Guang-shun, ZHOU Hou-bing. Properties of βdelayed Proton Decay of ¹⁴⁵Er[J]. Nuclear Physics Review, 2010, 27(3): 252-256. doi: 10.11804/NuclPhysRev.27.03.252