Speaker
Description
The China Spallation Neutron Source (CSNS) is currently undergoing an upgrade to increase its beam power from 100 kW to 500 kW. As part of this enhancement, the linear accelerator's beam energy will be boosted from 80 MeV to 300 MeV, and the beam current will be raised from 10 mA to 40 mA. To achieve the higher beam energy, 52 superconducting cavities will be added following the drift tube linac. However, these new cavities are expected to increase both energy jitter and energy spread, potentially leading to significant beam loss during injection into the RCS ring. Therefore, it is crucial to carefully manage the energy jitter and energy spread. This paper first presents simulations of the beam energy jitter and energy spread at the end of the superconducting section with dynamic beam and cavities errors. Subsequently, it introduces a comparison of various compression schemes aimed at reducing energy jitter and energy spread.
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