Injection System for the Siberian Ring Source of Photons
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ion System for the Siberian Ring Source of Photons S. M. Gurova, *, V. N. Volkova, K. V. Zolotareva, and A. E. Levicheva aBudker
Institute of Nuclear Physics, Siberian Branch, Russian Academy of Sciences, (BINP SB RAS), Novosibirsk, 630090 Russia *e-mail: [email protected] Received October 28, 2019; revised December 14, 2019; accepted December 17, 2019
Abstract—The Siberian ring source of photons (SKIF) is a new 3-GeV fourth-generation source of synchrotron radiation with a perimeter of 480 m that is being developed in Novosibirsk. To obtain bright synchrotronradiation beams, the SKIF must have a suitable injection system for the preparation of intense electron beams. The article describes the proposed configuration of the injection system and its parameters. Electron bunches are produced by a thermal gun based on a radio frequency cavity. Then they are accelerated to 200 MeV in a linac and accelerated to 3 GeV in a booster synchrotron with a perimeter of 160 m. The injection complex will operate at a frequency of 1 Hz and will be able to pump the main storage ring with a current of up to 400 mA in one minute. Keywords: synchrotron light source, injection system, booster, linear accelerator DOI: 10.1134/S1027451020030271
INTRODUCTION Synchrotron radiation (SR) is widely used for research and development [1–3]. Currently, more than fifty SR sources are in operation around the world. About twenty of them are third-generation SR sources. A MAX-IV SR source of the 4th-generation was recently launched in Sweden. The 4th-generation SIRIUS SR source is being created in Brazil, and work is underway to update the existing 4th-generation SR ESRF SR source in France. Nowadays around the world, projects are being prepared to upgrade many other SR sources. In Russia, a project is under discussion for the construction of three 4th-generation SR sources: a GeV source in Protvino and two 3-GeV sources in Novosibirsk and Vladivostok. A modern SR source should have a reliable injection complex, supplying the main storage ring with electron beams. In this paper, it is proposed to create an injection complex based on a 200-MeV linear accelerator and a booster synchrotron to reach full energy.
SR source at Brookhaven National Laboratory (USA) [4]. The 200-MeV linac will be based on developments and technologies at BINP SB RAS recently used to create the VEPP-5 injection complex including two linacs (one for 300 MeV and the other for 500 MeV). Such an injection complex will completely satisfy the requirement of the storage ring for electron bunches, and the available developments and technologies will enable the creation and launch of the 4thgeneration SKIF SR source within 5 years. The injection complex consists of: (а) 200-MeV linac; (b) transport channel from the linear accelerator to the booster; (c) full energy booster; and a (d) transport channel from the booster to the electron storage ring. Table 1 shows the main parameters of the injection complex.
REQUIREMENTS FOR THE INJECTION SYSTEM The electron storage device will be
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