T-NPS Header
T-PS Home  |  Editorial Board  |  T-PS in IEEE Xplore  |   Early Access  |  Manuscript Submission
FEATURED STORIES - SEPTEMBER 2017

"Theory of Linear and Nonlinear Gain in a Gyroamplifier Using a Confocal Waveguide"

by Alexander V. Soane, Michael A. Shapiro, Jacob C. Stephens, and Richard J. Temkin

The linear and nonlinear theory of a gyroamplifier using a confocal waveguide is presented. A quasi-optical approach to describing the modes of a confocal waveguide is derived. Both the equations of motion and the mode excitation equation are derived in detail. The confocal waveguide circuit has the advantage of reducing mode competition, but the lack of azimuthal symmetry presents challenges in calculating the gain. In the linear regime, the gain calculated using the exact form factor for the confocal waveguide agrees with an azimuthally averaged form factor. A beamlet code, including velocity spread effects, has been written to calculate the linear and nonlinear (saturated) gain. It has been successfully benchmarked against the MAGY code for azimuthally symmetric cases. For the confocal waveguide, the beamlet code shows that the saturated gain is reduced when compared with results obtained using an azimuthally averaged form factor. The beamlet code derived here extends the capabilities of nonlinear gyroamplifier theory to configurations that lack azimuthal symmetry. more...
-----------------------

A PUBLICATION OF THE IEEE NUCLEAR AND PLASMA SCIENCES SOCIETY

SEPTEMBER 2017   |  VOLUME 45  |  NUMBER 9  |  ITPSBD  |  (ISSN 0093-3813)

REGULAR PAPERS
Basic Processes in Fully and Partially Ionized Plasmas
Breakdown Characteristics and Mechanisms of Short Needle–Plate Air Gap in High-Speed Airflow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
      . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Y. Kang, X. Zhang, C. Shi, Y. Zhou, Y. Liu, G. Gao, W. Wei, and G. Wu
Effect of Ambient Electrons on Primary Discharge Energy in Laser-Induced Discharge . . . . . . . . . . . . . . . . . . . . Y. Hoshi, H. Yoshida, and N. Iki

Microwave Generation and Microwave-Plasma Interaction
2-D High-Order DGTD Method and Its Application in Analysis of Sheath Propagation Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
      . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . L. Li, B. Wei, Q. Yang, X. Yang, and D. Ge
Power Spectrum of Refractive-Index Fluctuation in Hypersonic Plasma Turbulence . . . . . . . . . . . . . J. Li, S. Yang, L. Guo, M. Cheng and T. Gong
Theory of Linear and Nonlinear Gain in a Gyroamplifier Using a Confocal Waveguide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
     . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A. V. Soane, M. A. Shapiro, J. C. Stephens, and R. J. Temkin
A Shock Tube Experimental System for Communication Performance Evaluation Under the Time-Varying Plasma Flow Channel . . . . . . . . . . . . .
     . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . X. Lyu, C. Jiang, W. Feng, and N. Ge

Charged Particle Beams and Sources
Investigation of the Radio-Frequency Discharge in a High Current Negative Hydrogen Ion Source With a Global Enhanced Vibrational
     Kinetic Model
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . S. N. Averkin, N. A. Gatsonis, and L. Olson
Direct Current Plasma Electron Source for Electric Propulsion Applications Using Atomic and Molecular Propellants . . . . . . . . . . . . . . . . . . . . . . .
      . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A. Gurciullo, A. Lucca Fabris, and A. Knoll

Industrial, Commercial, and Medical Applications of Plasmas
A Versatile Laminar Flow Atmospheric Pressure Plasma Jet Using a Double Coaxial Glass Tube . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
      . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . H. Ohashi, K. Oyama, T. Mitani, K. Naiki, T. Nakayama, and H. Ito

Plasma Diagnostics
Measurements and Analyses of Electro-Exploding Products Generated by Semiconductor Bridge Igniters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
      . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . J. Wang, Y. Li, B. Zhou, X. Jia, R. Shen, and L. Wang
Optical Emission Spectroscopy-Based Tomography for Compact Low-Pressure Microwave Plasma in a Multicusp . . . . . . . . . . . . . . . . . . . . . . . .
     . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . K. Rathore, S. Bhattacharjee, D. N. Patel, and P. Munshi

Pulsed Power Science and Technology
Design Procedure of the Leakage Inductance for a Pulse Transformer Considering Winding Structures . . . . . . . F. Pan, L. Jin, P. Pan, and Z. Xu
A Compulsator Driven Reluctance Coilgun-Type Electromagnetic Launcher . . . . . . . . . . . . . . . . . . . . . . . . . B. Zhu, J. Lu, J. Wang, and S. Xiong
Effect of Circuit Parameters and Environment on Shock Waves Generated by Underwater Electrical Wire Explosion . . . . . . . . . . . . . . . . . . . . . . .
      . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B. Liu, D. Wang, and Y. Guo
A Modular Multilevel Generic Pulse-Waveform Generator for Pulsed Electric Field Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
     . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . M. A. Elgenedy, A. Darwish, S. Ahmed, and B. W. Williams
A Zero-Current Opening Circuit for Inductive Pulsed-Power Supply Based on High-Temperature Superconducting Pulsed-Power
     Transformer
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . X. Zhang, Z. Li, H. Li, C. Zhang, and S. Liu
A New Electromagnetic Launcher by Sextupole Rails: Electromagnetic Propulsion and Shielding Numerical Validation . . . . . . . . . . . . . . . . . . . . .
      . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . X. Xue, T. Shu, Z. Yang, and G. Feng
The Meat Grinder With CPFU: A Novel Circuit for Inductive Pulsed Power Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . X. Liu and X. Yu

Dusty Plasmas
Development of Cnoidal Waves in Positively Charged Dusty Plasmas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
      . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . R. E. Tolba, W. M. Moslem, A. A. Elsadany, N. A. El-Bedwehy, and S. K. El-Labany

Special Issue on Selected Papers from SOFE 2015
Numerical Analysis of 2-D and 3-D MHD Flows Relevant to Fusion Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A. Khodak

Special Issue on Spacecraft Charging Technology 2017
Validation Through Experiments of a 3-D Time-Dependent Model of Internal Charging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
      . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. Sarrailh, T. Paulmier, B. Dirassen, D. Rodgers, G. Santin, F. Cipriani, and D. Payan
Chemical and Electrical Dynamics of Polyimide Film Damaged by Electron Radiation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
      . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D. P. Engelhart, E. Plis, S. Humagain, S. Greenbaum, D. Ferguson, R. Cooper, and R. Hoffmann
A Study of Solar Orbiter Spacecraft–Plasma Interactions Effects on Electric Field and Particle Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . .
     . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . S. Guillemant, M. Maksimovic,
      A. Hilgers,   F. Pantellini,   L. Lamy,   P. Louarn,   V. Génot,   C. J. Owen,   J.-C. Matéo-Vélez,   P. Sarrailh,   S. L. G. Hess,   and   A. Vecchio

Special Issue on Vacuum Discharge Plasmas (ISDEIV PS) 2016
Influence of Microscopic Electric Field Enhancement on Microparticle Impact Phenomena Based on Fractal Modeling . . . . . . . . . . . . . . . . . . . . . .
      . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Y. Zhang, X. Xu, L. Jin, Z. An, Y. Geng, and J. Wang
Influence of Axial Magnetic Field on Cathode Plasma Jets in High-Current Vaccum Arc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
     . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D. Yang, S. Jia, W. Qi, J. Wu, S. Wang, Y. Han, B. Ding, H. Zhang, and W. Li


ANNOUNCEMENTS
Call for Papers—Special Issue on Selected Papers of the 16th Latin American Workshop on Plasma Physics
Call for Papers—Special Issue on Pulsed Power Science and Technology
Call for Papers—Special Issue of IEEE Transactions on Plasma Science on High-Power Microwave Generation, June 2018



Accessibility | Privacy and Opting Out of Cookies | Nondiscrimination Policy

Copyright 2017 IEEE - All rights reserved. Use of this newsletter site signifies your agreement to the IEEE Terms and Conditions.
A not-for-profit organization, IEEE is the world's largest technical professional organization dedicated to advancing technology for the benefit of humanity. [Response: Read Receipt]

If you would like to be removed from this email distribution, please [Response: Unsubscribe from List].
If you have unsubscribed in error, please [Response: Subscribe to List].
To unsubscribe from all mailings, use your IEEE Account to update your "Personal Profile and Communication Preferences."

Replies to this message will not reach IEEE. Due to local email service/provider settings, random characters may appear in some instances.

Although the IEEE is pleased to offer the privilege of membership to individuals and groups in the OFAC embargoed countries, the IEEE cannot offer certain services to members from such countries.

IEEE
445 Hoes Lane
Piscataway, NJ 08854 USA
+1 800 678 4333 (toll free, US & Canada)
+1 732 981 0060 (Worldwide)

For more information or questions regarding your IEEE Membership or IEEE Account, please direct your inquiries to the IEEE Contact Center.