Author: Yang, J.C.
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MOA2I2
 Challenges & Status of HIAF Project and Brief Introduction of Ciads Project in China  
 
  • J.C. Yang
    IMP/CAS, Lanzhou, People’s Republic of China
  
  HIAF (High Intensity heavy ion Accelerator Facility) is a proposed new accelerator facility for advances in the nuclear physics and related research fields in China. The construction of the accelerator complex began in 2018 and is scheduled to be complete by the end of 2025. In the past several years, the prototypes have been developed successfully for these innovative technologies. In this presentation, progress and status of civil engineering and infrastructure construction of HIAF are presented, R&D on critical accelerator techniques and prototypes of core devices are introduced. Accelerator Driven Sub-critical System (ADS) is considered to be the optimum method of converting spent fuel into short-lived isotopes. Currently, ADS is still in the transitional phase from key technologies tackling to systematic and integrated research. As one of the national major science and technology infrastructures, the China initiative Accelerator Driven System (CiADS) will be the world¿s first prototype of ADS facility at megawatt level to explore the safe and proper technology of nuclear waste disposal. The brief introduction of CiADS will be given in this presentation.  
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WEA1I1
 Development and Application of High-Performance CISP-GPU Code for High Intensity Effects in HIAF  
 
  • J. Liu, S.H. Du, C.Guo. Guo, J.C. Yang, G. Zhu
    IMP/CAS, Lanzhou, People’s Republic of China
  
  Funding: National Natural Science Foundation of China (Grant No. 12005274)
HIAF project is a major national science and technology infrastructure project in China. Its booster ring BRing can provide high intensity ion beams from proton to uranium, in which high intensity effects could have many detrimental impacts on the intensity and quality. And situations become more complicated as diverse effects like impedances, space charge fields, complex beam manipulations, etc., are coupled. A new high-performance simulation code CISP-GPU, which is driven by an object-oriented and GPU computing integrated framework, is developed for the BRing of HIAF and other high intensity ion accelerators to simulate all high intensity effects and their coupling effects with other dynamics, aiming at more comprehensive mapping between simulations and practical facilities. Now, the CISP-GPU has been applied widely to the dynamics research of the BRing, including analyzing and stabilizing collective instabilities, correcting resonances from space charge effects and nonlinear errors, and so on. In the future, the CISP-GPU will be integrated in the control system of HIAF and extended to a powerful platform which can simulate all vital effects in diverse synchrotrons and colliders. 		 
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