A 150MeV injector electron linac for the SSRF is under construction at SINAP.This linac has been installed, commissioned and handed over to the SSRF during the period of 2006—2007.This paper describes the special nee...A 150MeV injector electron linac for the SSRF is under construction at SINAP.This linac has been installed, commissioned and handed over to the SSRF during the period of 2006—2007.This paper describes the special needs of an injector for a third generation synchrotron light source and the two specific modes of operation for this linac.The design results and the commissioning results for this linac are given in this paper.展开更多
The physical design and cooling test of a C-band 2MeV standing wave （SW） accelerating tube are described in this paper. The designed accelerating structure consists of 3-cell buncher and 4-cell accelerating section ...The physical design and cooling test of a C-band 2MeV standing wave （SW） accelerating tube are described in this paper. The designed accelerating structure consists of 3-cell buncher and 4-cell accelerating section with a total length of about 163mm, excited with 1MW magnetron. Dynamic simulation presents that about 150mA beam pulse current and 30% capture efficiency can be achieved. By means of nonlinear Gauss fit on electron transverse distribution, the diameter of beam spot FWHM （full width at half maximum of density distribution） is about 0.55mm. Cooling test results of the accelerating tube show that frequencies of cavities are tuned to 5527MHz and the field distribution of bunching section is about 3：9：10.展开更多
医用直线加速器是用于肿瘤放射治疗的重要设备,其输出剂量的稳定性是影响肿瘤治疗效果的重要因素。影响输出剂量稳定性的主要因素包括自动频率控制(Automatic Frequency Control,AFC)系统、加速管性能、磁控管性能等。本文主要从AFC系...医用直线加速器是用于肿瘤放射治疗的重要设备,其输出剂量的稳定性是影响肿瘤治疗效果的重要因素。影响输出剂量稳定性的主要因素包括自动频率控制(Automatic Frequency Control,AFC)系统、加速管性能、磁控管性能等。本文主要从AFC系统的原理及调试方面阐述控制磁控管的微波输出频率,使之和加速管的谐振频率保持一致,从而保持直线加速器输出剂量率稳定性的方法。展开更多
This paper presents the model cavity tune and cold test of an S-band 2MeV on-axis coupling SW accelerator. The measurement of the model cavity's frequency,degree of coupling,Q value and on-axis field distribution ...This paper presents the model cavity tune and cold test of an S-band 2MeV on-axis coupling SW accelerator. The measurement of the model cavity's frequency,degree of coupling,Q value and on-axis field distribution are described in detail.In addition,the results of cavity tune and cold test of the accelerating tube are given.The frequency consistency of the accelerator is within±0.3MHz,the coupling degree in the supersaturation state 1.14,the quality factor of the accelerator 12000±200,and the field distribution ratio 1:2.2:2.All the results observed show that the accelerator satisfies the physics design with microwave debugging.展开更多
文摘A 150MeV injector electron linac for the SSRF is under construction at SINAP.This linac has been installed, commissioned and handed over to the SSRF during the period of 2006—2007.This paper describes the special needs of an injector for a third generation synchrotron light source and the two specific modes of operation for this linac.The design results and the commissioning results for this linac are given in this paper.
文摘The physical design and cooling test of a C-band 2MeV standing wave （SW） accelerating tube are described in this paper. The designed accelerating structure consists of 3-cell buncher and 4-cell accelerating section with a total length of about 163mm, excited with 1MW magnetron. Dynamic simulation presents that about 150mA beam pulse current and 30% capture efficiency can be achieved. By means of nonlinear Gauss fit on electron transverse distribution, the diameter of beam spot FWHM （full width at half maximum of density distribution） is about 0.55mm. Cooling test results of the accelerating tube show that frequencies of cavities are tuned to 5527MHz and the field distribution of bunching section is about 3：9：10.
文摘医用直线加速器是用于肿瘤放射治疗的重要设备,其输出剂量的稳定性是影响肿瘤治疗效果的重要因素。影响输出剂量稳定性的主要因素包括自动频率控制(Automatic Frequency Control,AFC)系统、加速管性能、磁控管性能等。本文主要从AFC系统的原理及调试方面阐述控制磁控管的微波输出频率,使之和加速管的谐振频率保持一致,从而保持直线加速器输出剂量率稳定性的方法。
文摘This paper presents the model cavity tune and cold test of an S-band 2MeV on-axis coupling SW accelerator. The measurement of the model cavity's frequency,degree of coupling,Q value and on-axis field distribution are described in detail.In addition,the results of cavity tune and cold test of the accelerating tube are given.The frequency consistency of the accelerator is within±0.3MHz,the coupling degree in the supersaturation state 1.14,the quality factor of the accelerator 12000±200,and the field distribution ratio 1:2.2:2.All the results observed show that the accelerator satisfies the physics design with microwave debugging.
