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Title: Photonic Crystal-Based High-Power Backward Wave Oscillator

Abstract

An electron beam traversing a slow wave structure can be used to either generate or amplify electromagnetic radiation through the interaction of the slow space charge wave on the beam with the slow wave structure modes. Here, a cylindrical waveguide with a periodic array of conducting loops is used for the slow wave structure. This paper considers operation as a backward wave oscillator. The dispersion properties of the structure are determined using a frequency-domain eigenmode solver. The interaction of the electron beam with the structure modes is investigated using a 2-D particle-in-cell (PIC) code. In conclusion, the operating frequency and growth rate dependence on beam energy and beam current are investigated using the PIC code and compared with analytic and scaling estimates where possible.

Authors:
ORCiD logo [1]; ORCiD logo [2]
  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  2. Air Force Research Lab., Albuquerque, NM (United States)
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1416512
Report Number(s):
LLNL-JRNL-730755
Journal ID: ISSN 0093-3813; TRN: US1800948
Grant/Contract Number:
AC52-07NA27344
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
IEEE Transactions on Plasma Science
Additional Journal Information:
Journal Volume: 46; Journal Issue: 1; Journal ID: ISSN 0093-3813
Publisher:
IEEE
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION; 42 ENGINEERING; Backward wave oscillators (BWOs); electron beams; periodic structures

Citation Formats

Poole, Brian R., and Harris, John R. Photonic Crystal-Based High-Power Backward Wave Oscillator. United States: N. p., 2017. Web. doi:10.1109/TPS.2017.2774271.
Poole, Brian R., & Harris, John R. Photonic Crystal-Based High-Power Backward Wave Oscillator. United States. doi:10.1109/TPS.2017.2774271.
Poole, Brian R., and Harris, John R. Fri . "Photonic Crystal-Based High-Power Backward Wave Oscillator". United States. doi:10.1109/TPS.2017.2774271.
@article{osti_1416512,
title = {Photonic Crystal-Based High-Power Backward Wave Oscillator},
author = {Poole, Brian R. and Harris, John R.},
abstractNote = {An electron beam traversing a slow wave structure can be used to either generate or amplify electromagnetic radiation through the interaction of the slow space charge wave on the beam with the slow wave structure modes. Here, a cylindrical waveguide with a periodic array of conducting loops is used for the slow wave structure. This paper considers operation as a backward wave oscillator. The dispersion properties of the structure are determined using a frequency-domain eigenmode solver. The interaction of the electron beam with the structure modes is investigated using a 2-D particle-in-cell (PIC) code. In conclusion, the operating frequency and growth rate dependence on beam energy and beam current are investigated using the PIC code and compared with analytic and scaling estimates where possible.},
doi = {10.1109/TPS.2017.2774271},
journal = {IEEE Transactions on Plasma Science},
number = 1,
volume = 46,
place = {United States},
year = {Fri Dec 01 00:00:00 EST 2017},
month = {Fri Dec 01 00:00:00 EST 2017}
}

Journal Article:
Free Publicly Available Full Text
This content will become publicly available on December 1, 2018
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