NUMERICAL STUDIES OF THE FRICTION FORCE FOR THE RHIC ELECTRON COOLER.

Conference · Mon May 16 00:00:00 EDT 2005

OSTI ID:15016271

FEDOTOV, A V; BEN-ZVI, I; LITVINENKO, V

Accurate calculation of electron cooling times requires an accurate description of the dynamical friction force. The proposed RHIC cooler will require {approx}55 MeV electrons, which must be obtained from an RF linac, leading to very high transverse electron temperatures. A strong solenoid will be used to magnetize the electrons and suppress the transverse temperature, but the achievable magnetized cooling logarithm will not be large. In this paper, we explore the magnetized friction force for parameters of the RHIC cooler, using the VORPAL code [l]. VORPAL can simulate dynamical friction and diffusion coefficients directly from first principles [2]. Various aspects of the fiction force are addressed for the problem of high-energy electron cooling in the RHIC regime.

• Research Organization: BROOKHAVEN NATIONAL LABORATORY (US)
• Sponsoring Organization: DOE/SC (US)
• DOE Contract Number: AC02-98CH10886
• OSTI ID: 15016271
• Report Number(s): BNL-73383-2005-CP; R&D Project: 18054; ISBN KB-02-02-01-1; TRN: US0502172
• Resource Relation: Conference: PAC 05 PARTICLE ACCELERATOR CONFERENCE, KNOXVILLE, TN (US), 05/16/2005--05/20/2005; Other Information: PBD: 16 May 2005
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
ACCELERATORS
DIFFUSION
ELECTRON COOLING
ELECTRON TEMPERATURE
ELECTRONS
FRICTION
HEAT EXCHANGERS
SOLENOIDS