Simulation of intense particle beams with regularly distributed Gaussian subbeams |
| |
| Affiliation: | 1. Centre for Ion Beam Applications, Department of Physics, National University of Singapore, Singapore 117542, Singapore;2. Department of Electrical and Computer Engineering, National University of Singapore, Singapore 117583, Singapore;1. Interdisciplinary Centre for Energy Research, Indian Institute of Science, Bangalore, India;2. Centre for Nanoscience and Engineering, Indian Institute of Science, Bangalore, India;3. Materials Research Centre, Indian Institute of Science, Bangalore, India;4. Materials Engineering, Indian Institute of Science, Bangalore, India;5. Nanomaterials Research Laboratory, Surface Engineering Division, CSIR-National Aerospace Laboratories, Bangalore, 560 017, India;1. Department of Physics, Alagappa University, Karaikudi 630 003, India;2. Center for High Energy Physics, Kyungpook National University, Daegu 41566, Republic of Korea |
| |
| Abstract: | Techniques for the simulation of intense particle beams are investigated with respect to the required number of simulation particles. It is shown that for nonchaotic systems it is advantageous if the particles initially are not distributed in a statistical manner but rather arranged in a regular pattern in phase space. This reduces the number of required simulation particles drastically. In the case of such an initially regular arrangement of particles the algorithm which assigns the charges of the particles to the computation mesh becomes of prime importance. The performances of different commonly used algorithms are investigated. The Gaussian assignment algorithm proved far superior to other more commonly used techniques, allowing simulations even at the theoretical limit of 1 particle per cell. Examples for very accurate simulations of beam dynamics with very few particles using an initially regular mesh of particles and Gaussian assignment are given. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
