The linear accelerator of China's high-energy synchrotron radiation light source successfully accelerated its first electron beam on Tuesday, its builder has announced.
The light source, the High Energy Photon Source (HEPS), is a major science infrastructure project in China built by the Institute of High Energy Physics under the Chinese Academy of Sciences.
HEPS is like a supersized X-ray machine, with the ability to accelerate electrons to near the speed of light through three stages and generate synchrotron radiation, which features strong penetrability and a high level of brightness, thus helping researchers observe microcosms.
Three separate accelerators -- a linear accelerator, a storage ring and a booster -- form the main part of HEPS. The linear accelerator, which is approximately 49 meters long, is the first-stage accelerator and can generate and accelerate electrons to 500 MeV. It has laid a solid foundation for the construction of the other two accelerators.
HEPS is expected to become one of the brightest fourth-generation synchrotron radiation facilities worldwide after its construction is complete, and it will serve fields such as advanced materials, aerospace and biomedicine. (Xinhua)
a team of researchers from China, South Korea and the U.S. has proposed a new way to minimize the energy spread of electrons in laser wakefield accelerators. They publish their method in the journal Physics of Plasmas, from AIP Publishing.
Researchers from Shanghai Institute of Optics and Fine Mechanics of the Chinese Academy of Sciences, and international collaborators, has proposed an all-optical approach to obtain energetic polarized electron beam based on LWFA driven by a vortex laser beam (also known as vortex laser) and verified the feasibility via full three dimension (3D) particle-in-cell simulations incorporating spin dynamics.
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