The HEPS project-Reference-Cited by-同舟云学术

The HEPS project

Published:2018-09-26 Issue:6 Volume:25 Page:1611-1618
ISSN:1600-5775
Container-title:Journal of Synchrotron Radiation
language:
Short-container-title:J Synchrotron Radiat

Author:

Jiao Yi,Xu Gang,Cui Xiao-Hao,Duan Zhe,Guo Yuan-Yuan,He Ping,Ji Da-Heng,Li Jing-Yi,Li Xiao-Yu,Meng Cai,Peng Yue-Mei,Tian Sai-Ke,Wang Jiu-Qing,Wang Na,Wei Yuan-Yuan,Xu Hai-Sheng,Yan Fang,Yu Cheng-Hui,Zhao Ya-Liang,Qin Qing

Abstract

The High Energy Photon Source (HEPS), a 6 GeV green-field diffraction-limited storage ring light source, will be built in Beijing, China. The HEPS design has been evolving for about ten years, and is now mostly finished and ready for construction. The storage ring is based on a modified hybrid seven-bend achromat (7BA) design, where bending magnets with reverse bending angles and longitudinal gradients are adopted to reach an ultralow natural emittance of 34.2 pm with a circumference of 1360.4 m. The central slice of the dipole in the middle of the modified hybrid 7BA, with flexible magnetic field, is used as the source of the bending-magnet beamline. Moreover, alternating high- and low-beta sections are specially designed to generate and deliver X-ray synchrotron radiation with high brightness of 5 × 1022 photons s−1 mm−2 mrad−2 (0.1% bandwidth)−1. Here, the HEPS storage ring design and solutions to the challenges inherent in this ultralow-emittance design are presented.

Funder

Youth Innovation Association of Chinese Academy of Sciences

National Natural Science Foundation of China

Key Research Program of Frontier Sciences, CAS

Publisher

International Union of Crystallography (IUCr)

Subject

Instrumentation,Nuclear and High Energy Physics,Radiation

Link

http://journals.iucr.org/s/issues/2018/06/00/xe5043/xe5043.pdf

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