A particle-in-cell mode beam dynamics simulation of medium energy beam transport for the SSC-Linac

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XIAO Chen, HE Yuan, YUAN You-Jin, LU Yuan-Rong, LIU Yong, WANG Zhi-Jun, DU Xiao-Nan, YAO Qing-Gao, LIU Ge, XU Meng-Xin, HE Shou-Bo and XIA Jia-Wen. A particle-in-cell mode beam dynamics simulation of medium energy beam transport for the SSC-Linac[J]. Chinese Physics C, 2012, 36(1): 84-90. doi: 10.1088/1674-1137/36/1/015
XIAO Chen, HE Yuan, YUAN You-Jin, LU Yuan-Rong, LIU Yong, WANG Zhi-Jun, DU Xiao-Nan, YAO Qing-Gao, LIU Ge, XU Meng-Xin, HE Shou-Bo and XIA Jia-Wen. A particle-in-cell mode beam dynamics simulation of medium energy beam transport for the SSC-Linac[J]. Chinese Physics C, 2012, 36(1): 84-90.  doi: 10.1088/1674-1137/36/1/015 shu
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Received: 2011-04-12
Revised: 2011-05-06
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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A particle-in-cell mode beam dynamics simulation of medium energy beam transport for the SSC-Linac

    Corresponding author: XIAO Chen,

Abstract: A new linear accelerator system, called the SSC-Linac injector, is being designed at HIRFL (the heavy ion research facility of Lanzhou). As part of the SSC-Linac, the medium energy beam transport (MEBT) consists of seven magnetic quadrupoles, a re-buncher and a diagnose box. The total length of this segment is about 1.75 m. The beam dynamics simulation in MEBT has been studied using the TRACK 3D particle-in-cell code, and the simulation result shows that the beam accelerated from the radio frequency quadrupole (RFQ) matches well with the acceptance of the following drift tube linac (DTL) in both the transverse and longitudinal phase spaces, and that most of the particles can be captured by the final sector focusing cyclotron for further acceleration. The longitudinal emittance of the RFQ and the longitudinal acceptance of the DTL was calculated in detail, and a multi-particle beam dynamics simulation from the ion source to the end of the DTL was done to verify the original design.

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