Multi-Nanosecond High Power Pulse Generation at 7.8 GHz With a Dielectric-Loaded Power Extractor

Author

Gao, F. ; Conde, M.E. ; Gai, W. ; Jing, C. ; Konecny, R.S. ; Liu, W. ; Power, J.G. ; Wong, T. ; Yusof, Z.

Author_Institution

Illinois Inst. of Technol., Chicago, IL

Volume

56

Issue

3

fYear

2009

fDate

6/1/2009 12:00:00 AM

Firstpage

1492

Lastpage

1497

Abstract

Power extraction from charged particle beams is a prospective way to develop future high power radio frequency (RF) sources. We have designed and tested a 7.8 GHz power extractor based on a dielectric-loaded waveguide. Building upon earlier work on single electron bunch tests, 10 ns and 22 ns megawatt-level RF pulses have been generated with trains consisting of 16 electron bunches each, by using a laser splitting-recombination scheme. In addition, 44 MW of peak power has been generated with a train consisting 4 electron bunches. Behaviors of higher-order-modes are also explored.

Keywords

accelerator RF systems; dielectric-loaded waveguides; electron beams; particle beam bunching; particle beam extraction; wakefield accelerators; RF pulses; charged particle beams; dielectric-loaded power extraction; dielectric-loaded waveguide; electron beam; electron bunch; frequency 7.8 GHz; high power pulse generation; high power radio frequency sources; higher-order-modes; laser splitting-recombination scheme; time 10 ns; time 22 ns; wakefields; Buildings; Dielectrics; Electrons; Optical pulse generation; Particle beams; Power generation; Pulse generation; Radio frequency; Testing; Waveguide lasers; Accelerator RF system; particle beams; pulse generation;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/TNS.2009.2019749

Filename

5075979