An Advanced Real-Time Data Management System

65723 The premier nuclear physics accelerator facility, the Relativistic Heavy Ion Collider, collides heavy ions to create conditions like those that existed a fraction of a second after the big bang. An electron cooling section will be built in two or three years as part of a planned luminosity upgrade. The parameters and conditions for this electron cooling section will be fundamentally different than those built at other accelerator facilities, and there is a need for high-performance, high-fidelity numerical simulations as part of the research design process. This project will develop a parallel three-dimensional (3-D) particle code for detailed simulations of this electron cooling section. A fast multipole algorithm will be used to implement an N-body simulation of the electron-ion interactions in order to capture the exchange of thermal energy from the warm ions to the cool electrons. Phase I will demonstrate the 3-D parallel advance of magnetized electrons. A fast multipole algorithm will simulate coulomb collisions between the ions and the elections, demonstrating transfer of thermal energy. Facilities for the generation and post processing of electron and ion distributions will be developed. Commercial Applications and Other Benefits as described by awardee: The parallel 3-D code should benefit scientists working to design the electron cooling section for the luminosity upgrade to the Relativistic Heavy Ion Collider. This code could also be used in modelling the Boersch effect in the transport of strongly-magnetized electron beams for coolers, the intrabeam scattering effect in heavy ion accelerators, and the formation of crystal beams