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莫晓虎 E. V. Abakumova M. N. Achasov V. E. Blinov 初元萍 董海义 傅成栋 F. A. Harris V. V. Kaminskiy A. A. Krasnov 李小南 刘倩 N. Yu. Muchnoi I. B. Nikolaev E. E. Pyata 屈化民 秦庆 A.G. Shamov 沈成平 G. S. Varner 王贻芳 徐金强 张建勇 张清江 张银鸿 张天保 V. N. Zhilich 赵卓 A. A. Zhukov 《中国物理 C》2010,34(6):912-917
The beam energy measurement system at BEPCII is composed of there parts: laser source and optics system, laser-electron interaction system and High Purity Germanium (HPGe) detector system. The special components and construction of each part are introduced, especially about radiation background measurement in the storage ring, which is of great importance for the safe commissioning of HPGe detector. 相似文献
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ATPF—a dedicated proton therapy facility 总被引:1,自引:0,他引:1
A proton therapy facility based on a linac injector and a slow-cycling synchrotron is proposed. To obtain good treatments for different cancer types, both the spot scanning method and the double-scattering method are adopted in the facility, whereas the nozzles include both gantry and fixed beam types. The proton accelerator chain includes a synchrotron of 250 MeV in maximum energy, an injector of 7 MeV consisting of an RFQ and a DTL linac, with a repetition rate of 0.5 Hz. The slow extraction using the third-order resonance and together with the RFKO method is considered to be a good method to obtain a stable and more-or-less homogenous beam spill. To benefit the spot scanning 200 between 60 MeV and 230 MeV. A new method method, the extraction energy can be as many as about - the emittance balancing technique of using a solenoid or a quadrupole rotator is proposed to solve the problem of unequal emittance in the two transverse planes with a beam slowly extracted from a synchrotron. The facility has been designed to keep the potential to be upgraded to include the carbon therapy in the future. 相似文献
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