6. High-Energy and Accelerator Physics, Physics of High-Temperature Plasma

TWO-DIMENSIONAL NUMERICAL MODEL FOR STUDIES OF COLLECTIVE BEAM-PLASMA INTERACTION

Andrey V. Terekhov
1. Budker Institute of Nuclear Physics SB RAS Novosibirsk, Russian Federation
2. Novosibirsk State University Novosibirsk, Russian Federation
Igor V. Timofeev
1. Budker Institute of Nuclear Physics SB RAS Novosibirsk, Russian Federation
2. Novosibirsk State University Novosibirsk, Russian Federation
timofeev@ngs.ru
Konstantin V. Lotov
1. Budker Institute of Nuclear Physics SB RAS Novosibirsk, Russian Federation
2. Novosibirsk State University Novosibirsk, Russian Federation
K.V.Lotov@inp.nsk.su
The material was received by the Editorial Board: 01.02.2010
A two-dimensional particle-in-cell numerical model is developed to simulate collective relaxation of powerful electron beams in plasmas. To increase the efficiency of parallel particle-in-cell simulations on supercomputers, the Dichotomy Algorithm is used for inversion of the Laplace operator. The proposed model is tested with several well-known physical phenomena and is shown to adequately simulate basic effects of the beam driven turbulence. Also, the modulational instability is studied in the regime when the energy of pumping wave significantly exceeds the thermal plasma energy.

Keywords:
PIC simulations, beam-plasma interaction, two-stream instability, modulational instability, Landau damping.
УДК 533.902

TWO-DIMENSIONAL NUMERICAL MODEL FOR STUDIES OF COLLECTIVE BEAM-PLASMA INTERACTION
References: Terekhov A. V., Timofeev I. V., Lotov K. V. TWO-DIMENSIONAL NUMERICAL MODEL FOR STUDIES OF COLLECTIVE BEAM-PLASMA INTERACTION. Vestnik NSU. Series: Physics. 2010, vol. 5, no. 2. P. 85–97 (in Russ.). DOI: 10.54362/1818-7919-2010-5-2-85-97