First mass measurement of short-lived nuclides at HIRFL-CSR
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- 作者：HuShan Xu (1)
XiaoLin Tu (1) (2)
YouJin Yuan (1)
JiaWen Xia (1)
YongDong Zang (1) (2)
Meng Wang (1)
RuiShi Mao (1)
ZhengGuo Hu (1)
Bo Mei (1) (2)
Peng Shuai (3)
ZhiChao Zhu (1) (2)
ShuWen Tang (1) (2)
Peng Geng (1) (2)
Yong Liu (1)
TieCheng Zhao (1)
XueYing Zhang (1)
JianCheng Yang (1)
LiJun Mao (1)
YuHu Zhang (1)
XiaoHong Zhou (1)
WenXue Huang (1)
GuoQing Xiao (1)
HongWei Zhao (1)
WenLong Zhan (1) - 关键词：radioactive ion beam ; mass measurement ; isochronous mass spectrometry
- 刊名：Chinese Science Bulletin
- 出版年：2009
- 出版时间：December 2009
- 年：2009
- 卷：54
- 期：24
- 页码：4749-4752
- 全文大小：481KB
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XiaoLin Tu (1) (2)
YouJin Yuan (1)
JiaWen Xia (1)
YongDong Zang (1) (2)
Meng Wang (1)
RuiShi Mao (1)
ZhengGuo Hu (1)
Bo Mei (1) (2)
Peng Shuai (3)
ZhiChao Zhu (1) (2)
ShuWen Tang (1) (2)
Peng Geng (1) (2)
Yong Liu (1)
TieCheng Zhao (1)
XueYing Zhang (1)
JianCheng Yang (1)
LiJun Mao (1)
YuHu Zhang (1)
XiaoHong Zhou (1)
WenXue Huang (1)
GuoQing Xiao (1)
HongWei Zhao (1)
WenLong Zhan (1)
1. Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China
2. Graduate University of Chinese Academy of Sciences, Beijing, 100049, China
3. Department of Modern Physics, University of Science and Technology of China, Hefei, 230026, China - ISSN：1861-9541
文摘
Recent commissioning of the HIRFL-CSR has demonstrated its ability to perform direct mass measurement for short-lived nuclides. Projectile fragments produced by the 78Kr ions at 481.88 MeV/u were separated with the new radioactive beam line in Lanzhou (RIBLL2), and injected into and stored in the experimental storage ring (CSRe). By operating the CSRe as an isochronous mass spectrometry, a typical mass resolution around 2.0×10? has been achieved. The masses for 63Ge, 65As and 67Se were measured for the first time. The measured masses are compared with theoretical predictions and the location of the proton drip-line for As isotopes is discussed. The implication of the 65As mass in the astrophysical rapid proton capture process has also been addressed.