2-8 SimCSR Program for the Simulation of the Isochronous Mass Spectrometry at the HIRFL-CSR

• 作者: Chen Ruijiu Chen Xiangcheng Fu Chaoyi Ge Wenwen Ge Zhuang Hu Xuejing Huang Wenjia Litvinov Sergy Litvinov Yuri Liu Dawei Shuai Peng Wang Meng Xing Yuanming Xu Hushan Xu Xing Yan Xinliang Yuan Youjin Zeng Qi Zhang Wei Zhang Yuhu Zhou Xiaohong
• 来源期刊: 中国科学院近代物理研究所和兰州重离子研究装置年报：英文版
• 学科: 物理学
• 关键词: SimCSR PROGRAM Isochronous
• 年，卷（期）: 2014,（1）
• 页码范围: 39-40
• 页数: 2页
• 分类号: O4

摘要

Until now, several isochronous mass spectrometry (IMS) experiments have been successfully performed usingvarious primary beams at the HIRFL-CSR and masses of both proton-rich and proton-deficient exotic nuclei havebeen measured. In order to improve the performance of the IMS experiments and to provide a reliable tool fordesigning and preparing the future experiments, a simulation code, named SimCSR is developed.Presently, six-dimension phase-space linear transmission theory is applied to simulate the transmission of ionsin the experimental storage ring (CSRe). The basic algorithm is Bf = MBi. The Bi and Bf are six-dimensionphase-space vectors of ions at the entrance and exit of each element of the CSRe lattice, respectively. M is a6-by-6-dimension first-order transfer matrix of each element. M is calculated using formulas described in Ref.[1]. Inthe simulations, the ring lattice is considered in detail, and the same magnetic setting as in our previous experimentwith 58Ni projectile fragments[2] is considered. The ions are assumed to circulate 300 turns inside the CSRe.