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Physics Parameters and Design Study for the Beijing Spallation Neutron Source
Shou-Xian Fang,C. Zhang,J. Wei,J.Y. Tang,Q. Qin,S. Wang,S.N. Fu 한국물리학회 2006 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.48 No.4
The Beijing Spallation Neutron Source (BSNS) will be the next large science facility in China. Based on an 80 MeV linac and a 1.6 GeV rapid cycling synchrotron, the BSNS has a goal to obtain a proton beam power of 100 kW with a repetition rate of 25 Hz in the first phase. An introduction to the conceptual design of the BSNS is given, and the main parameters and key technical features are summarized. The R&D plan is discussed.뒩b
A High-Current RFQ Accelerator for the ADS System in China
Shi-Nian Fu,Shou-Xian Fang,Xia-Ling Guan 한국물리학회 2006 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.48 No.4
An intense-beam Radio Frequency Quadrupole (RFQ) accelerator is under construction at Institute of High Energy Physics (IHEP), Beijing. It accelerates a proton beam with an average current of 3mA at a 6 % duty factor to 3.5 MeV from 75 keV. This four-vane type 352-MHz RFQ has a length of 4.7m and is separated into two resonantly coupled segments. This paper will present the physics design and the technology development of the RFQ, including the beam dynamics design study, the measurement of cold models, quadrupole and dipole field tuning of the long cavity, and the RF power source system. Now, the RFQ is being installed, and the beam tuning will start in 2006.