Progress and Prospects of Accelerator Research at IHEP

by Prof. Yuhui Li (the Institute of High Energy Physics)

Tuesday 4 Apr 2023, 10:00 → 12:00 Asia/Shanghai

Tsung-Dao Lee Institute/N6F-N602 - Lecture Room (Tsung-Dao Lee Institute)

Abstract:

This talk provides an overview of the latest progress in accelerator research at IHEP. The presentation covers BEPCII operation and CEPC R&D, the construction progress of the High Energy Photon Source (HEPS), and research on cutting-edge technologies, including beam-driven plasma acceleration and cold linac acceleration.

BEPCII is the only e+e- collider ever built and operated in China. The machine is currently operating stably and maintaining high luminosity. The CEPC aims to be a world-leading Higgs factory, and its physical design allows for one of the highest luminosities in the world. Key technology studies have been carried out, and the HEPS construction also supports technology preparation for CEPC.

In addition to e+e- collider studies, IHEP is also focused on multidisciplinary studies. The HEPS is under construction, which will be the first 4th generation light source in China. Important milestones have been achieved in recent months, such as the successful beam commissioning of the 500MeV linac.

Due to its super-high gradient, plasma acceleration technology has the potential to revolutionize accelerators. IHEP plans to carry out plasma acceleration studies, with a focus on beam-driven technology (PWFA).

In recent years, cryogenic copper accelerators have attracted attentions. They generate high acceleration gradients in the range of 100 MeV/m and provides improved repetition. Cold copper linacs have the advantages of driving a linac collider as well as a free electron laser.

Biography:

The speaker received his PhD from the University of Science and Technology of China in 2006. After completing his doctorate, he pursued post-doctoral studies at the Institute of DESY in Germany, where he focused on designing and optimizing the undulator system at the European XFEL.

From 2010 to 2020, Yuhui Li worked as scientific staff member at the European XFEL, which is the first hard XFEL facility driven by a superconducting linac. In those years, Yuhui Li designed, constructed, and commissioned the undulator system.

Since 2020, Yuhui Li has worked at the Institute of High Energy Physics. As one of the deputy directors in the accelerator division, he is involved in various projects, including serving as a convener for the CEPC accelerator and coordinating efforts to complete the TDR study. He is also leading the undulator R&D and mass production for HEPS. Additionally, Yuhui Li is involved in studies related to PWFA plasma acceleration and cool copper linac.

Online Meeting Room: https://meeting.tencent.com/dm/W14FsrD0khuO

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