【摘要】 在国家"973"计划洁净核能项目的支持下,中国科学院高能物理研究所与中国原子能科学研究院合作,建成了我国首台强流质子加速器。它是1台四翼型结构的射频四极(radio-frequency qaudrupole,RFQ)加速器,这种先进加速结构可为来自离子源的低能强流束提供周期性强聚焦,并同时在纵向对束流进行聚束和加速。我国建成的这台RFQ加速器束流能量为3.5 MeV,脉冲流强达46 mA,束流工作比大于7%。本文将介绍这台RFQ加速器的物理设计、研制、调试和出束实验的结果。更多还原

【Abstract】 The first high intensity proton radio-frequency qaudrupole(RFQ) accelerator with four-vane structure was built in collaboration between Institute of High Energy Physics and China Institute of Atomic Energy under the support of the accelerator-driven clean nuclear energy program in the State Key Basic Research Project in China.The advanced accelerating structure can provide a periodical strong focusing to the low-energy high-current beam from an ion source,while bunching and accelerating the beam in longitudinal direction.The RFQ accelerates proton beam of 46 mA pulse current to 3.5 MeV at more than 7% duty factor.The physics design,experimental study and beam commissioning of the RFQ are introduced in this paper.更多还原