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Chinese Physics C> 2015, Vol. 39> Issue(4) : 047005 DOI: 10.1088/1674-1137/39/4/047005

Simulation of loss of uranium ions due to charge changing processes in the CSRm ring

  • Significant beam loss caused by the charge exchange processes and ion impact-induced outgassing may restrict the maximum number of accelerated heavy ions during the high intensity operation of an accelerator. In order to control beam loss due to charge exchange processes and confine the generated desorption gas, tracking of the beam loss distribution and installation of absorber blocks with low-desorption rate material at appropriate locations in the main Cooler Storage Ring (CSRm) at the Institute of Modern Physics, Lanzhou, will be performed. The loss simulation of uranium ions with electron-loss is presented in this report and the conclusion is that most charge changed particles are lost in the second dipole of the super-period structure. The calculation of the collimation efficiency of the CSRm ring will be continued in the future.
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    [1] XIA J W, YUAN Y J, LIU Y. HIRFL-CSR Facility. Proceeding of PAC09. Vancouver, BC, Canada, 20[2] Omet C, Spiller P et al. New Journal of Physics, 2006, 8: 284[3] Weber G, Omet C et al. Phys. Rev. ST Accel. Beams, 2009, 12: 084201[4] Mustafin E, Boine-Frankenheim O et al. Nuclear Instruments and Methods in Physics Research A, 2003, 510: 199-205[5] Spiller P J, Blasche K et al. High Intensity Uranium Operation in SIS 18. Proceeding of EPAC 2004. Lucerne, Switzerland, 2004[6] Schlachter A S, Stearns J W et al. Phys. Rev. A, 1983, 6: 3372-3374[7] Lee S Y. Accelerator Physics. World Scientific Publishing Co. Pet. Let[8] Accumulation of heavy ions in the CSRm of the CSR design report in chapter 2[9] MAO L J. The Simulation and Test of Electron Cooling in HIRFL-CSRm, PHD 2009. Institution of Modern Physic, Chinese Academy of Science, 2009[10] Jaroslaw Pasternak, Loss Pattern of Pb Ions with Charge Changing Processed in the LEIR Ring. CERN-AB Department, AB-Note-2004-066(ABP), 2004[11] XIA J W, ZHAN W L, YUAN Y J et al. Construction and commissioning of the HIRFL-CSR. APAC 2007. Raja Ramanna Centre for Advanced Technology(RRCAT), Indore, India, 2007

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ZHENG Wen-Heng, YANG Jian-Cheng, LI Peng, LI Zhong-Shan, SHANG Peng, QU Guo-Feng, GE Wen-Wen, TANG Mei-Tang and SHA Xiao-Ping. Simulation of loss of uranium ions due to charge changing processes in the CSRm ring[J]. Chinese Physics C, 2015, 39(4): 047005. doi: 10.1088/1674-1137/39/4/047005
ZHENG Wen-Heng, YANG Jian-Cheng, LI Peng, LI Zhong-Shan, SHANG Peng, QU Guo-Feng, GE Wen-Wen, TANG Mei-Tang and SHA Xiao-Ping. Simulation of loss of uranium ions due to charge changing processes in the CSRm ring[J]. Chinese Physics C, 2015, 39(4): 047005.  doi: 10.1088/1674-1137/39/4/047005 shu
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Received: 2014-09-04
Revised: 1900-01-01
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Simulation of loss of uranium ions due to charge changing processes in the CSRm ring

    Corresponding author: ZHENG Wen-Heng,
  • Received Date: 2014-09-04
  • Accepted Date: 1900-01-01
  • Available Online: 2015-04-05

Abstract: Significant beam loss caused by the charge exchange processes and ion impact-induced outgassing may restrict the maximum number of accelerated heavy ions during the high intensity operation of an accelerator. In order to control beam loss due to charge exchange processes and confine the generated desorption gas, tracking of the beam loss distribution and installation of absorber blocks with low-desorption rate material at appropriate locations in the main Cooler Storage Ring (CSRm) at the Institute of Modern Physics, Lanzhou, will be performed. The loss simulation of uranium ions with electron-loss is presented in this report and the conclusion is that most charge changed particles are lost in the second dipole of the super-period structure. The calculation of the collimation efficiency of the CSRm ring will be continued in the future.

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