Mass Measurement of Short-lived Nuclei at HIRFL-CSR
1 Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
2 GSI Helmholtzzentrum für Schwerionenforschung, Planckstrasse 1, 64291 Darmstadt Germany
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Published online: 20 March 2014
Four campaigns of mass measurements for short-lived nuclei have been conducted using an isochronous mass spectrometry (IMS) technique at HIRFL-CSR(Cooler Storage Ring) in Lanzhou. The radioactive nuclei were produced by projectile fragmentation and injected into the experimental storage ring CSRe. Revolution times of the ions stored in the CSRe were measured from which masses of 78Kr, 58Ni, 86Kr and 112Sn fragments have been determined with a relative uncertainty of about 10-6-10-7. The experimental results are presented and their impacts on nucleosynthesis in the rp process and nuclear structure are discussed.
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