1 October 1991 Feedback induced chaotic transitions in crossed-field devices
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Proceedings Volume 1576, 16th International Conference on Infrared and Millimeter Waves; 157605 (1991) https://doi.org/10.1117/12.2297718
Event: 16th International Conference on Infrared and Millimeter Waves, 1991, Lausanne, Switzerland
Abstract
The recirculating hub charge causes nonlinear feedback between the input and the output in Crossed-Field Amplifiers. By varying some control parameters, such as the secondary emission coefficient or the recirculating charge fraction, the operation exhibits transitions from steady state, to limit cycles and finally to unpredictable (chaotic) behavior. The amplifier dynamics is described by a truncated system of fluid equations following guiding center trajectories1. Numerical integration of these equations yields very good agreement with experimental results, while reducing the computation time by three orders of magnitude compared to particle simulations. A pass-to-pass map is employed to investigate whether the chaotic transitions in CFAs follow the 'universal' rout to chaos for nonlinear-dissipative systems.
© (1991) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Spilios Riyopoulos, Spilios Riyopoulos, } "Feedback induced chaotic transitions in crossed-field devices", Proc. SPIE 1576, 16th International Conference on Infrared and Millimeter Waves, 157605 (1 October 1991); doi: 10.1117/12.2297718; https://doi.org/10.1117/12.2297718
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