Brief Introduction

The Linac Physics Group aims to the overall design, debugger and operation of high power Linear Accelerator(linac) as well as the accelerator-target coupling section(ATCS).  

The research direction includes beam dynamic of linac, accelerator industrialization applications, accelerator-target-reactor coupling, miniaturization technology of normal temperature accelerator, new acceleration mechanism and technology, AI & FPGA development for linac, Software development of virtual accelerator, etc..   

The group has successfully designed the CiADS demo linac, of which is in the world leading level in terms of beam current, power and operation time. Current tasks includes research and design of the superconducting linac For CiADS and HIAF Projects, as well as the design of ATCS For CiADS. The team currently has 18 full-time researchers and 10 graduate students. 

Research Fields

Main research topics include: 

1. Beam dynamic design and optimization of superconducting linear accelerator  

2. Commissioning operation and machine research of superconducting linear accelerator  

3. Research on the design of high power beam dump  

4. Research on the coupling physics of the target stack  

5. Miniaturization and industrialization technology of room temperature accelerator  

6. The principle of the new acceleration mechanism  

7. AI algorithm and virtual accelerator software development for accelerator design 

8. Computational Physics and Plasma Physics 



1. Yanxia Xu, Xin Qi, Xue Yang, Chao Li, Xiaoying Zhao, Wenshan Duanand Lei Yang, PIC-MCC simulation of electromagnetic wave attenuation in partially ionized plasmas. plasma science and technology, 23(2014), 015002  

2. Xin Qi, Yanxia Xu, wenshan duan and lei yang, The application scope of the reductive perturbation method and the upper limit of the dust acoustic solitary waves in a dusty plasma. physics of Plasma, 21(2014), 013702 

3. G. D. Wei, X. Qi, and L. Yang, Modelling on dynamics properties of a stationary argon cascaded arc plasma flows Physics of Plasmas, 21(2014), 033507. 

4. Ling-yu Zhang, Xin Qi, Xiao-ying Zhao, Xun-chao Zhang, Guo-qing Xiao, Wen-shan Duan and Lei YangDynamics of He2+ +H ionization with exponential cosine-screened Coulomb potentialPhys. Scr. 89 (2014), 085402. 

5. Shi-Wei Liu, Xin Qi, Jiu-Ning Han, Xue-Ren Hong, Yu-Ren Shi, Wen-shan Duan, and Lei YangInteraction for solitary waves in coasting charged particle beamsPhysics of Plasmas, 21(2014), 033106; 

6. Gao, DN; Qi, X; Hong, XR; Yang, X; Duan, WS; Yang, L, The stability of the dust acoustic waves under transverse perturbations in a magnetized and collisionless dusty plasmaJOURNAL OF PLASMA PHYSICS, 80(2014), 425 

7. Guodong Wei, Xin Qi, and Lei Yang, Modeling of an argon cascaded arc plasma by ANSYS FLUENT, Journal of Physics: ConferenceSeries, 488 (2014) 152013 

8. L. Y. Zhang, X. Qi, X. Y. Zhaoand L. Yang, Dynamics of H+ + H ionization in plasmas , Journal of Physics: ConferenceSeries, 488 (2014), 082015. 

9. Ling-yu Zhang, Xiao-ying Zhao, Jiang-feng Wan,Guo-qing Xiao,Wen-shan Duan, Xin Qi and Lei Yang,  Dynamics of the fully stripped ion-hydrogen atom charge exchange process in dense quantum plasmas, PHYSICS OF PLASMAS, 21(2014), 093302  

10. Jie Zhang, Yang Yang, Yan-Xia Xu, Lei Yang, Xin Qi, and Wen-shan Duan, The study of the Poincare-Lighthill-Kuo method by using the particle-in-cell simulation method in a dusty plasma, PHYSICS OF PLASMAS, 21(2014), 103706.  

11. Xin Qi, Yan-xia Xu, Wen-shan Duan, Ling-yu Zhang, and Lei Yang, Particle-in-cell simulation of the head-on collision between two ion acoustic solitary waves in plasmas, PHYSICS OF PLASMAS, 21(2014), 082118.  

12. Heng Zhang, Yang Yang, Jie Zhang, Xue-Ren Hong, Mai-Mai Lin, Lei Yang, Xin Qi, and Wen-Shan Duan , Landau damping in a multi-component dusty plasma, PHYSICS OF PLASMAS 21(2014), 113706.  

13. Chao Li, Qi Xin, HeYuan, YangLei, Y.K.Batygin, Particle Orbits in QuadrupoleDuodecapole Halo Suppressor  Nuclear Instruments and Methods in Physics Research A 770(2015) , 169. 

14. Ling-yu Zhang, Xiao-ying Zhao, Xin Qi, Guo-qing Xiao,Wen-shan Duan, and Lei Yang,. Collective effects on the wakefield and stopping power of an ion beam pulse in plasmas, PHYSICS OF PLASMAS, 22(2015), 053109.  

15. Ling-Yu Zhang, Xiao-Ying Zhao, Xin Qi, Guo-Qing Xiao, Wen-Shan Duan and Lei Yang. Wakefield and stopping power of a hydrogen ion beam pulse with low drift velocity in hydrogen plasmas. Laser and Particle Beams, 33(2015), 215.  

16. Xiao-ying Zhao, Ling-yu Zhang, Ya-ling Zhang, Wen-shan Duan, Xin Qi, Lei Yang, and Jian Shi, The influence of magnetic fields on the wake field and stopping power of an ion-beam pulse in plasmas, Physics of Plasmas 22(2015), 093114. 

17. Heng Zhang, Xin Qi, Wen-Shan Duan, Lei Yang, Envelope solit waves exist and collide head-on without phase shift in a dusty plasma, Scientific Reports 5(2015), 14239 

18. Xin Qi, Yan-xia Xu, Xiao-ying Zhao, Wen-shan Duan, Lei Yang, Application of Particle-in-Cell Simulation to the Description of Ion Acoustic Solitary Waves IEEE Transactions on Plasma Science43(2015), 3815. 

19. Heng Zhang, Wen-Shan Duan, Xin Qi, Lei Yang , Head-on collision and overtaking collision between an envelope solitary wave and a KdV solitary wave in a dusty plasma. Scientific Reports, 6(2015), 212214. 

20. L. Y. Zhang, X. Y. Zhao, X. Qi, W, -S. Duan and L. Yang, Particle-in-cell simulations of the long proton beam focusing in background plasmas, Laser and Particle Beams, 34, 299. 

21. Xiao-Ying Zhao, Hong-Peng Xu, Yong-Tao Zhao, Xin Qi, and Lei Yang, Beam Velocity and Density Influences on Ion-Beam Pulses Moving in Magnetized Plasmas, IEEE TRANSACTIONS ON PLASMA SCIENCE, 44(2016), 8. 

22. Jie Zhang, Xin Qi, Heng Zhang, Wen-Shan Duan Particle-in-Cell Simulation of the Reflection of a Korteweg-de Vries Solitary Wave and an Envelope Solitary Wave at a Solid Boundary, CHIN. PHYS. LETT. , 33(2016), 6, 065202. 

23. Yanxia Xu, Jiaxiang Wang, Xin Qi,Meng Li, Yifan Xing, Lei Yang, and Wenjun Zhu  Improving the quality of proton beams via double targets driven by an intense circularly polarized laser pulse, AIP Advances 6(2016), 105304.  

24. Yanxia Xu, Jiaxiang Wang,1 Xin Qi, Meng Li, Yifan Xing, Lei Yang, and Wenjun Zhu,Plasma block acceleration via double targets driven by an ultraintense circularly polarized laser pulse,PHYSICS OF PLASMAS 24(2017), 033108.  

25. Heng Zhang, Yang Yang, Xue-Ren Hong, Xin Qi, Wen-Shan Duan, and Lei Yang Freak oscillation in a dusty plasmaPHYSICAL REVIEW E 95 (2017), 053207. 

26. Xiao-ying Zhao, Xin Qi, Lei Yang, Yong-tao Zhao, and Jian Shi1 

The correlation effects on the wake field and stopping power for two ion-beam pulses moving in a background plasmaPhysics of Plasmas 25(2018), 093107. 

27. Xu, YX, Wang, JX, Hora, H, Qi, X, Xing, YF, Yang, L, Zhu, WJ, Plasma block acceleration based upon the interaction between double targets and an ultra-intense linearly polarized laser pulse, Physics of Plasmas 25(2018), 093107. 

28. Dou weiping, Chen weilong, Wang fengfeng et al, Beam dynamics and commissioning of CW RFQ for a compact deuteronberyllium neutron source. Nuclear Instruments and Methods in Physics Research A 903 (2018) 85-90. 

29. Wei-Ping Dou , Zhi-Jun Wang , Fang-Jian Jia et alBeam dynamic design of a high intensity injector for proton linac,Nuclear Instruments and Methods in Physics Research A 827 (2016) 145151. 

30. Dou weiping, He yuan, Lu yuanrong. beam dynamics design for uranium drift tube linear acceleratorChinese Physics C Vol. 38, No. 7 (2014) 077001. 

31. Weiping Dou, Beam Dynamics Design of CW RFQ for Chinese ADS, 61st ICFA Advanced Beam Dynamics Workshop on High-Intensity and High- Brightness Hadron Beams,Daejeon, Korea, June 17 to June 22, 2018.  

32. Zhi-jun Wang, Yuan He, Huan Jia et al, Beam commissioning for a superconducting linac, PRST-AB. 

33. Zhi-Jun Wang, Chi Feng, Yuan He et al, Noninterceptive transverse emittance measurements using BPM for Chinese ADS R&D projectNIMA 

34. WANG Zhi-Jun, HE Yuan, A.A.Kolomiets etc. A new compact structure for high intensity low-energy heavy-ion accelerator. Chinese Physics C 

35. WANG Zhi-Jun, HE Yuan, Wang Wang-Sheng etc.End-to-end simulation of the C-ADS Injector Ⅱ with a 3-D field map. Chinese Physics C,2013, 37 (4): 047003. 

36. WANG Zhi-Jun, HE YuanLiu Yong etc. Design simulation of SC section in ADS Injector II. Chinese Physics C, 2012,36 (3): 256-260. 

37. WANG Zhi-Jun, HE Yuan, WU Wei etc. Design optimization of the APF DTL in the SSC-linac. Chinese Physics C,2010, 34 (10): 1639-1642. 



HE Yuan           

Tel: +86-931-4969671 


Mailing Address: 509 Nanchang Rd, Lanzhou, China, 730000 


WANG Zhijun  

Tel: +86-18509316233      


Mailing Address: 509 Nanchang Rd, Lanzhou, China, 730000


JIA Huan  

Tel: +86-18509316267 


Mailing Address: 509 Nanchang Rd, Lanzhou, China, 730000