Stochastic cooling, as the different cooling mechanism from electron cooling,is designed and constructed on CSRe (experimental Cooling Storage Ring) inHIRFL (Heavy Ion Research Facility in Lanzhou) at present. The beam extractedfrom CSRm (main Cooling Storage Ring) is injected into the CSRe, and then thesecondary beam with large momentum spread and large emittance is produced atthe internal target area. This paper is designed to optimize the lattice ofCSRe in order to satisfy the requirement of stochastic cooling system. ParticleTracking Method is used and both transverse and longitudinal simulation is madeon the basis of the designed lattice. The results indicate that stochasticcooling is suitable for beam cooling with larger momentum spread or largeremittance, and cooling rate is preliminarily confirmed.
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