【作者】 卢亮； Toshiyuki Hattori； 赵环昱； 孙亮亭； 何源； 赵红卫；

【Author】 LU Liang;Toshi yuki Hattori;ZHAO Huan-yu;SUN Liang-ting;HE Yuan;ZHAO Hong-wei;Nstitute of Modern Physics;National Institute of Radiological Sciences;

【机构】 中国科学院近代物理研究所； 日本放射线医学综合研究所；

【摘要】 混合型(Hybrid Single Cavity)直线加速器是把一段4杆型Radio Frequency Quadiupole(RFQ)加速结构和一段IH漂移管(DT)型加速结构混合到一个IH(Interdigital-H)腔里,利用IH型腔体具有的优秀电力效率,使得整个IH型-混合腔的加速功率效率比同光速领域的其他加速结构的腔体更高。HSC型加速器是有日本东京工业大学设计,所有主要部件都采用世界上先进的数控机床(NC)进行一体切割成形。HSC加速器于2013年6月运到近代物理研究所以来,已完成实验平台的搭建和大功率烤机,已经具备大功率加速试验条件,本论文将报告初步的HSC加速器的设计、低功率测试以及在近物所的最新进展。更多还原

【Abstract】 A Hybrid single cavity（HSC） linac,which is formed by combining a radio frequency quadrupole（RFQ） structure and a drift tube（DT） structure into one interdigital-H（IH） cavity,is fabricated and assembled as a proof of principle（PoP） type injector for cancer therapy synchrotron according to the culmination of several years’ researches^[1-4].It also can be operated as a CW（continuous wave） test injector of neutron source for boron neutron capture therapy.The injection method of the HSC linac adopt a direct plasma injection scheme（DPIS）,which is considered to be the only method for accelerating an intense current heavy ion beam produced by a laser ion source（LIS）.The input beam current of the HSC was designed to be 20 milliampere（mA） C⁶⁺ ions,which could be produced by a LIS.According to numerical simulations,the HSC linac could accelerate a 6—mA C⁶⁺ beam which meets requirement of the needed particle number for cancer therapy use(10⁸⁹ions/pulse).The injection system adopted HSC injector with the method of DPIS can make the existing multi-turn injection system and the stripping system unnecessary,and also can make the beam pipe of the existing synchrotron magnets downsize which could reduce the whole cost of synchrotron（estimated millions dollars）.Details of the measurements and the developments in IMP are reported in this paper.更多还原