Electron dynamics and acceleration study in a magnetized plasma-filled cylindrical waveguide

Journal Article · Tue Jan 15 04:00:00 EST 2008 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.2831223· OSTI ID:21064510

Kumar, Sandeep; Yoon, Moohyun ^[1]

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1. Department of Physics and Center for Theoretical Physics, Pohang University of Science and Technology, San 31, Hyoja-dong, Pohang, Gyeongbuk 790-784 (Korea, Republic of)

In this article, EH{sub 01} field components are evaluated in a cylindrical waveguide filled with plasma in the presence of external static magnetic field applied along the direction of the mode propagation. The electron acceleration inside the plasma-filled cylindrical waveguide is investigated numerically for a single-electron model. It is found that the electron acceleration is very sensitive to the initial phase of mode-field components, external static magnetic field, plasma density, point of injection of the electron, and microwave power density. The maximum amplitude of the EH{sub 01} mode's field components is approximately 100 times greater than the vacuum-waveguide case for operating microwave frequency f=7.64 GHz, plasma density n{sub 0}=1.08x10{sup 17} m{sup -3}, initial phase angle {phi}{sub 0}=60 deg., and microwave power {approx}14 MW in a cylindrical waveguide with a radius of 2.1 cm. An electron with 100 keV gets 27 MeV energy gain in 2.5 cm along the waveguide length in the presence of external power {approx}14 MW with a microwave frequency of 7.64 GHz. The electron trajectory is also analyzed under the effects of magnetic field when the electron is injected in the waveguide at r=R/2.

• OSTI ID: 21064510
• Journal Information: Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 2 Vol. 103; ISSN JAPIAU; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ACCELERATION
CYLINDRICAL CONFIGURATION
ELECTRONS
GHZ RANGE 01-100
KEV RANGE 10-100
MAGNETIC FIELDS
MEV RANGE 10-100
MICROWAVE RADIATION
PLASMA
PLASMA DENSITY
POWER DENSITY
WAVEGUIDES