The latest designs for high-intensity proton rings require minimal beam loss.Although the tune depression in the ring is very small compared with highintensity linacs, space-charge contributions to beam loss through halo formation may besigni cant. The goal of achieving low-level beam loss becomes especially challenging in the presence of both the space charge and magnet imperfections. This puts very high expectations on the code used for computer simulations. The Spallation Neutron Source SNS ring dynamics presents a complex combination of several physical e ects and dynamic processes. Some of them, such as eld errors and misalignments are supported in general-purpose accelerator codes. Other e ects, such as space charge, are actual only for high intensity hadron rings and distributed into a set of independent specialized programs. A new SNS package, based on Uni ed Accelerator Libraries UAL environment, addresses all these e ects together. This paper describes some basic features of the SNS simulation environment and demonstrates its application for the space-charge simulations in the SNS accumulator ring.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.