Emittance coupling driven by space charge in the CSNS linac

YIN Xue-Jun; FU Shi-Nian; PENG Jun

doi:10.1088/1674-1137/33/9/020

Chinese Physics C> 2009, Vol. 33> Issue(9) : 811-814 DOI: 10.1088/1674-1137/33/9/020

Emittance coupling driven by space charge in the CSNS linac

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Abstract：
In the conventional design of RF linacs, the bunched beams are not in thermal equilibrium. The space charge forces couple the particle motions between the transverse and the longitudinal directions. Furthermore it will cause the equipartitioning process which leads to emittance growth and halo formation. In the design of the China Spallation Neutron Source (CSNS) linac, three cases are investigated using the Hofmann stability charts. In this paper, we present the equipartitioning beam study of the CSNS Alvarez DTL linac.

References

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YIN Xue-Jun, FU Shi-Nian and PENG Jun. Emittance coupling driven by space charge in the CSNS linac[J]. Chinese Physics C, 2009, 33(9): 811-814. doi: 10.1088/1674-1137/33/9/020

YIN Xue-Jun, FU Shi-Nian and PENG Jun. Emittance coupling driven by space charge in the CSNS linac[J]. Chinese Physics C, 2009, 33(9): 811-814. doi: 10.1088/1674-1137/33/9/020 shu

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Received: 2008-12-03
Revised: 2009-02-18

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