Feedback induced chaotic transitions in crossed-field devices

Spilios Riyopoulos

doi:10.1117/12.2297718

1 October 1991 Feedback induced chaotic transitions in crossed-field devices

Spilios Riyopoulos

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.

Citation Download Citation

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); https://doi.org/10.1117/12.2297718

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available