PERMANENT MAGNET SYSTEM AND ELECTRON GUN DESIGN FOR A 3RD HARMONIC PENIOTRON | Zendy

Xinhui Wu | Zendy; Jian-Li Huo | Zendy; Biao Hu | Zendy; Jiayin Li | Zendy; Jufen Li | Zendy; Puchun Chen | Zendy

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PERMANENT MAGNET SYSTEM AND ELECTRON GUN DESIGN FOR A 3RD HARMONIC PENIOTRON

Author(s) -

Xinhui Wu,

Jian-Li Huo,

Biao Hu,

Jiayin Li,

Jufen Li,

Puchun Chen

Publication year - 2015

Publication title -

progress in electromagnetics research m

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.216

H-Index - 31

ISSN - 1937-8726

DOI - 10.2528/pierm15082101

Subject(s) - electron gun , magnet , harmonic , physics , electron , nuclear engineering , acoustics , nuclear physics , engineering , cathode ray , quantum mechanics

This study discusses the operating characteristics of a large-orbit electron gun and a corresponding permanent magnet system of a 3rd harmonic peniotron. After optimization, a novel axis-encircling electron beam with axial velocity spread 4.48%, guiding centre deviation ratio 6.97% and high velocity ratio 2.03 is obtained. Driven by the electron gun, an output power of 35.4 kW is obtained, and the device efficiency is up to 56.0%, which is an attractive result in laboratories. The main advantages of such a peniotron are its compact size and low cost, which can meet the needs of vehicle, airborne and other mobile devices. The numerical analysis reveals that the relative axial position between the electrode system and magnet system has a great influence on the device performance, which needs careful control and precise adjustment.

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