%0 Journal Article
%T First mass measurement of short-lived nuclides at HIRFL-CSR
%A HuShan Xu
%A XiaoLin Tu
%A YouJin Yuan
%A JiaWen Xia
%A YongDong Zang
%A Meng Wang
%A RuiShi Mao
%A ZhengGuo Hu
%A Bo Mei
%A Peng Shuai
%A ZhiChao Zhu
%A ShuWen Tang
%A Peng Geng
%A Yong Liu
%A TieCheng Zhao
%A XueYing Zhang
%A JianCheng Yang
%A LiJun Mao
%A YuHu Zhang
%A XiaoHong Zhou
%A WenXue Huang
%A GuoQing Xiao
%A HongWei Zhao
%A WenLong Zhan
%J Chinese Science Bulletin
%@ 1861-9541
%D 2009
%I 
%R 10.1007/s11434-009-0719-9
%X 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 2.0กม10 5 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.
%K radioactive ion beam
%K mass measurement
%K isochronous mass spectrometry
%U http://link.springer.com/article/10.1007/s11434-009-0719-9