학술논문

Monte Carlo simulation of a nonlaminar DC beam including the influence of self-fields
Document Type
Conference
Author
Source
Proceedings of the 1997 Particle Accelerator Conference (Cat. No.97CH36167) Particle accelerator conference Particle Accelerator Conference, 1997. Proceedings of the 1997. 2:2618-2620 vol.2 1997
Subject
Fields, Waves and Electromagnetics
Engineered Materials, Dielectrics and Plasmas
Nuclear Engineering
Robotics and Control Systems
Particle beams
Electron beams
Equations
Predictive models
Magnetic fields
Computational modeling
Space charge
Electron optics
Particle beam optics
Electrostatics
Language
Abstract
We present a method to simulate the transport of a nonlaminar DC beam under the influence of self-fields. The simulation randomly populates an initial phase space distribution with n particles. These particles are propagated in steps through the transport region, and the particle positions at each step are used in an unbinned maximum likelihood fit for the beam profile distribution. The self-fields at the position of each particle are calculated using the fitted beam profile distribution. The total computation required by the simulation scales linearly with n. The simulation for an electron beam with a phase space given by the Kapchinskij-Vladimirskij distribution is in good agreement with the beam profile predicted by the Kapchinskij-Vladimirskij envelope equations.