The SSC-linac （a new injector for the Separated Sector Cyclotron） is being designed in the HIRFL （Heavy Ion Research Facility in Lanzhou） system to accelerate 238U34＋ from 3.72 keV/u to 1.008 MeV/u. As a part of ...The SSC-linac （a new injector for the Separated Sector Cyclotron） is being designed in the HIRFL （Heavy Ion Research Facility in Lanzhou） system to accelerate 238U34＋ from 3.72 keV/u to 1.008 MeV/u. As a part of the SSC-linac injector, the HEBT （high energy beam transport） has been designed by using the TRACE-3D code and simulated by the 3D PIC （particle-in-cell） Track code. The total length of the HEBT is about 12 meters and a beam line of about 6 meters are shared with the exiting beam line of the HIRFL system. The simulation results show that the particles can be delivered efficiently in the HEBT and the particles at the exit of the HEBT well match the acceptance of the SSC for further acceleration. The dispersion is eliminated absolutely in the HEBT. The space-charge effect calculated by the Track code is inconspicuous. According to the simulation, more than 60 percent of the particles from the ion source can be transported into the acceptance of the SSC.展开更多
ADS先导专项的注入器II计划在将质子束通过一个Cryomodule加速到5 Me V后,进行10 m A连续束流的调试,以验证ADS低能段的强流超导直线加速器技术。为了将50 k W的束流功率沉积到束流垃圾站,需要搭建一条高能束流传输线,从超导段开始传输...ADS先导专项的注入器II计划在将质子束通过一个Cryomodule加速到5 Me V后,进行10 m A连续束流的调试,以验证ADS低能段的强流超导直线加速器技术。为了将50 k W的束流功率沉积到束流垃圾站,需要搭建一条高能束流传输线,从超导段开始传输束流。采用两套三组合四极透镜控制束流包络及垃圾站的束流尺寸,利用诊断真空室进行水平和垂直发射度的测量。为避免束流产生的真空管道损伤,该传输线必须确保束流无损失地传输到垃圾站。展开更多
基金Supported by National Natural Science Foundation of China(10635090)
文摘The SSC-linac （a new injector for the Separated Sector Cyclotron） is being designed in the HIRFL （Heavy Ion Research Facility in Lanzhou） system to accelerate 238U34＋ from 3.72 keV/u to 1.008 MeV/u. As a part of the SSC-linac injector, the HEBT （high energy beam transport） has been designed by using the TRACE-3D code and simulated by the 3D PIC （particle-in-cell） Track code. The total length of the HEBT is about 12 meters and a beam line of about 6 meters are shared with the exiting beam line of the HIRFL system. The simulation results show that the particles can be delivered efficiently in the HEBT and the particles at the exit of the HEBT well match the acceptance of the SSC for further acceleration. The dispersion is eliminated absolutely in the HEBT. The space-charge effect calculated by the Track code is inconspicuous. According to the simulation, more than 60 percent of the particles from the ion source can be transported into the acceptance of the SSC.
文摘ADS先导专项的注入器II计划在将质子束通过一个Cryomodule加速到5 Me V后,进行10 m A连续束流的调试,以验证ADS低能段的强流超导直线加速器技术。为了将50 k W的束流功率沉积到束流垃圾站,需要搭建一条高能束流传输线,从超导段开始传输束流。采用两套三组合四极透镜控制束流包络及垃圾站的束流尺寸,利用诊断真空室进行水平和垂直发射度的测量。为避免束流产生的真空管道损伤,该传输线必须确保束流无损失地传输到垃圾站。
