SELF-CONSISTENT LANGEVIN SIMULATION OF COULOMB COLLISIONS IN CHARGED-PARTICLE BEAMS
Conference
·
OSTI ID:768985
In many plasma physics and charged-particle beam dynamics problems, Coulomb collisions are modeled by a Fokker-Planck equation. In order to incorporate these collisions, we present a three-dimensional parallel Langevin simulation method using a Particle-In-Cell (PIC) approach implemented on high-performance parallel computers. We perform, for the first time, a fully self-consistent simulation, in which the friction and diffusion coefficients are computed from first principles. We employ a two-dimensional domain decomposition approach within a message passing programming paradigm along with dynamic load balancing. Object oriented programming is used to encapsulate details of the communication syntax as well as to enhance reusability and extensibility. Performance tests on the SGI Origin 2000 and the Cray T3E-900 have demonstrated good scalability. Work is in progress to apply our technique to intrabeam scattering in accelerators.
- Research Organization:
- Los Alamos National Lab., NM (US)
- Sponsoring Organization:
- US Department of Energy (US)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 768985
- Report Number(s):
- LA-UR-00-2354
- Country of Publication:
- United States
- Language:
- English
Similar Records
Object-Oriented Parallel Particle-in-Cell Code for Beam Dynamics Simulation in Linear Accelerators
Parallelization of a dynamic unstructured algorithm using three leading programming paradigms
Coupled ocean/atmosphere modeling on high-performance computing systems
Conference
·
Fri Nov 12 23:00:00 EST 1999
·
OSTI ID:762702
Parallelization of a dynamic unstructured algorithm using three leading programming paradigms
Journal Article
·
Mon Jun 26 00:00:00 EDT 2000
· IEEE Transactions on Parallel and Distributed Systems
·
OSTI ID:776615
Coupled ocean/atmosphere modeling on high-performance computing systems
Conference
·
Fri Feb 28 23:00:00 EST 1997
·
OSTI ID:632845