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Theory of free-electron maser with two-dimensional distributed feedback driven by an annular electron beam

Abstract:

The use of two-dimensional (2D) distributed feedback is considered as a method of providing spatially coherent radiation from an oversized annular electron beam. To realize the feedback mechanism, 2D Bragg structures formed from doubly-corrugated waveguide sections of coaxial geometry are suggested. The properties of two types of coaxial cavities formed using such structures are compared: a single-section 2D Bragg cavity and a two-mirror cavity. The eigenmodes of both cavities are found and t...

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Publisher copy:
10.1063/1.1481193

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Journal:
Journal of Applied Physics More from this journal
Volume:
92
Issue:
3
Pages:
1619-1629
Publication date:
2002-08-01
DOI:
ISSN:
0021-8979
Language:
English
Pubs id:
pubs:199081
UUID:
uuid:f89a30d1-7e23-46b2-8d78-4e05ee970a46
Local pid:
pubs:199081
Source identifiers:
199081
Deposit date:
2012-12-19

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