A data analysis method for isochronous mass spectrometry usingtwo time-of-flight detectors at CSRe

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XU Xing, WANG Meng, SHUAI Peng, CHEN Rui-Jiu, YAN Xin-Liang, ZHANG Yu-Hu, YUAN You-Jin, XU Hu-Shan, ZHOU Xiao-Hong, Yuri A, Sergey Litvinov, TU Xiao-Lin, CHEN Xiang-Cheng, FU Chao-Yi, GE Wen-Wen, GE Zhuang, HU Xue-Jing, HUANG Wen-Jia, LIU Da-Wei, XING Yuan-Ming, ZENG Qi and ZHANG Wei. A data analysis method for isochronous mass spectrometry usingtwo time-of-flight detectors at CSRe[J]. Chinese Physics C, 2015, 39(10): 106201. doi: 10.1088/1674-1137/39/10/106201
XU Xing, WANG Meng, SHUAI Peng, CHEN Rui-Jiu, YAN Xin-Liang, ZHANG Yu-Hu, YUAN You-Jin, XU Hu-Shan, ZHOU Xiao-Hong, Yuri A, Sergey Litvinov, TU Xiao-Lin, CHEN Xiang-Cheng, FU Chao-Yi, GE Wen-Wen, GE Zhuang, HU Xue-Jing, HUANG Wen-Jia, LIU Da-Wei, XING Yuan-Ming, ZENG Qi and ZHANG Wei. A data analysis method for isochronous mass spectrometry usingtwo time-of-flight detectors at CSRe[J]. Chinese Physics C, 2015, 39(10): 106201.  doi: 10.1088/1674-1137/39/10/106201 shu
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Received: 2015-02-03
Revised: 2015-04-10
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A data analysis method for isochronous mass spectrometry usingtwo time-of-flight detectors at CSRe

    Corresponding author: XU Xing,
    Corresponding author: WANG Meng,

Abstract: The concept of isochronous mass spectrometry (IMS) applying two time-of-flight (TOF) detectors originated many years ago at GSI. However, the corresponding method for data analysis has never been discussed in detail. Recently, two TOF detectors have been installed at CSRe and the new working mode of the ring is under test. In this paper, a data analysis method for this mode is introduced and tested with a series of simulations. The results show that the new IMS method can significantly improve mass resolving power via the additional velocity information of stored ions. This improvement is especially important for nuclides with Lorentz factor γ-value far away from the transition point γt of the storage ring CSRe.

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