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Precision isochronous mass measurements at the storage ring CSRe in Lanzhou

X.L. Tu M. Wang Yu.A. Litvinov Y.H. Zhang H.S. Xu Z.Y. Sun G. Audi 1 K. Blaum C.M. Du W.X. Huang Z.G. Hu P. Geng S.L. Jin L.X. Liu Yehan Liu B. Mei R.S. Mao X.W. Ma H. Suzuki P. Shuai Y. Sun S.W. Tang J.S. Wang S.T. Wang G.Q. Xiao X. Xu J.W. Xia J.C. Yang R.P. Ye T. Yamaguchi X.L. Yan Y.J. Yuan Y. Yamaguchi Y.D. Zang H.W. Zhao T.C. Zhao X.Y. Zhang X.H. Zhou W.L. Zhan
1 CSNSM - Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse
Abstract : Direct mass measurements of 78Kr projectile fragments have been performed in the recently commissioned storage ring CSRe employing the isochronous mass spectrometry method. A new data-analysis technique has been developed to correct the drifts in the revolution frequencies caused by instabilities of the magnetic fields in the CSRe, thus yielding a mass resolving power of R=m/Δm≈1.7×105 (sigma). Masses for 45V, 47Cr, 49Mn and 51Fe nuclei are determined with a relative mass precision of δm/m≈2×10−7 (sigma) which is an improvement by a factor of not, vert, similar2 compared to the literature values.
Keywords : Mass spectrometry Storage rings Exotic nuclei
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http://hal.in2p3.fr/in2p3-00621081
Contributor : Christine Hadrossek <>
Submitted on : Friday, September 9, 2011 - 2:03:20 PM
Last modification on : Wednesday, September 16, 2020 - 4:17:24 PM

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X.L. Tu, M. Wang, Yu.A. Litvinov, Y.H. Zhang, H.S. Xu, et al.. Precision isochronous mass measurements at the storage ring CSRe in Lanzhou. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Elsevier, 2011, 654, pp.213-218. ⟨10.1016/j.nima.2011.07.018⟩. ⟨in2p3-00621081⟩

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