Speaker
Description
In the cooling storage ring, a low-temperature electron beam from the electron cooling device overlaps with a high-temperature ion beam in the storage ring. The overlap occurs at the same average velocity for a certain distance. Through Coulomb interaction, electrons absorb excess energy from ions. This reduces the transverse emittance and longitudinal momentum spread of the ion beam, and increases its phase space density. When cooling a Gaussian-distributed pulsed ion beam with a longitudinal hollow electron beam, the pulses must match at the longitudinal center. This article introduces a phase match scheme for longitudinal hollow electron beams and ion beams. The scheme includes pulse measurement, triggering delay, phase match monitoring, and future feedback for automatic correction. This ensures the pulses are always synchronized. The scheme will be used in longitudinal hollow electron beam cooling experiments and will support future investigations into the cooling process.
Funding Agency
Work supported by NSFC No. 12275325, 12275323, 12205346.
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