A new accelerator complex, HIAF （the High Intensity Heavy Ion Accelerator Facility）, has been approved in China. It is designed to provide intense primary and radioactive ion beams for research in high energy densit...A new accelerator complex, HIAF （the High Intensity Heavy Ion Accelerator Facility）, has been approved in China. It is designed to provide intense primary and radioactive ion beams for research in high energy density physics, nuclear physics, atomic physics as well as other applications. In order to achieve a high intensity of up to 5× 10^11 ppp 23Su34＋, the Compression Ring （CRing） needs to stack more than 5 bunches transferred from the Booster Ring （BRing）. However, the normal bucket to bucket injection scheme can only achieve an intensity gain of 2, so an injection method, fixed barrier bucket （BB） supported by electron cooling, is proposed. To suppress the severe space charge effect during the stacking process, off-alignment is adopted in the cooler to control the transverse enfittance. In this paper, simulation and optimization with the BETACOOL program are presented.展开更多
基金Supported by New Interdisciplinary and Advanced Pilot Fund of Chinese Academy of Sciences
文摘A new accelerator complex, HIAF （the High Intensity Heavy Ion Accelerator Facility）, has been approved in China. It is designed to provide intense primary and radioactive ion beams for research in high energy density physics, nuclear physics, atomic physics as well as other applications. In order to achieve a high intensity of up to 5× 10^11 ppp 23Su34＋, the Compression Ring （CRing） needs to stack more than 5 bunches transferred from the Booster Ring （BRing）. However, the normal bucket to bucket injection scheme can only achieve an intensity gain of 2, so an injection method, fixed barrier bucket （BB） supported by electron cooling, is proposed. To suppress the severe space charge effect during the stacking process, off-alignment is adopted in the cooler to control the transverse enfittance. In this paper, simulation and optimization with the BETACOOL program are presented.
