Speaker
Description
The High Energy Photon Source (HEPS) adopts on-axis
swap-out injection to relax the dynamic-aperture requirement of its ultralow-emittance storage ring. To provide
high-charge bunches for swap-out operation, a booster-based
beam-recycling scheme has been developed, in which a depleted storage-ring bunch is extracted, transported to the
booster, combined with a newly accelerated bunch at high
energy, damped, and reinjected into the original storagering bucket. This paper summarizes the commissioning
status of this scheme. Closed-loop beam recycling has been
demonstrated, paving the way for user operation toward high
bunch charge. The results validate the basic beam-recycling
architecture and identify the main directions for further optimization toward routine high-charge operation.
Funding Agency
This work was supported by the High Energy Photon Source (HEPS), a major national science and technology infrastructure, and Youth Innovation Promotion Association CAS (No. 2021012).
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