Detailed Studies of Electron Cooling Friction Force

Journal Article · Mon Mar 20 00:00:00 EST 2006 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2190128· OSTI ID:20798415

Fedotov, A V ^[1]; Bruhwiler, D L; Abell, D T ^[2]; Sidorin, A O ^[3]

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1. Brookhaven National Lab, Upton, NY 11973 (United States)
2. Tech-X Corp., Boulder, CO 80303 (United States)
3. JINR, Dubna (Russian Federation)

High-energy electron cooling for RHIC presents many unique features and challenges. An accurate estimate of the cooling times requires detailed simulation of the electron cooling process. The first step towards such calculations is to have an accurate description of the cooling force. Numerical simulations are being used to explore various features of the friction force which appear due to several effects, including the anisotropy of the electron distribution in velocity space and the effect of a strong solenoidal magnetic field. These aspects are being studied in detail using the VORPAL code, which explicitly resolves close binary collisions. Results are compared with available asymptotic and empirical formulas and also, using the BETACOOL code, with direct numerical integration of less approximate expressions over the specified electron distribution function.

• OSTI ID: 20798415
• Journal Information: AIP Conference Proceedings, Vol. 821, Issue 1; Conference: COOL05: International workshop on beam cooling and related topics, Galena, IL (United States), 18-23 Sep 2005; Other Information: DOI: 10.1063/1.2190128; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
ANISOTROPY
BEAM DYNAMICS
BROOKHAVEN RHIC
COMPUTERIZED SIMULATION
DISTRIBUTION
DISTRIBUTION FUNCTIONS
ELECTRON BEAMS
ELECTRON COOLING
ELECTRONS
FRICTION
MAGNETIC FIELDS
NUMERICAL ANALYSIS
V CODES