Title :
Experimental study of a high power free electron maser based on a co-axial two-dimensional Bragg cavity
Author :
Whyte, Colin G. ; Ronald, Kevin ; Phelps, Alan O R ; Konoplev, Ivan V. ; McGrane, Paul ; Cross, Adrian W. ; He, Wenlong ; Robertson, Craig W. ; Ginzburg, Naum S. ; Peskov, Nikolai Yu ; Sergeev, Aleksander S. ; Thumm, Manfred
Author_Institution :
Dept. of Phys., Univ. of Strathclyde, Glasgow, UK
Abstract :
The generation of high power microwave radiation from a two-dimensional (2D) Bragg coaxial Free Electron Maser (FEM) is reported. Two 2D Bragg structures positioned at the input and output of an oversized co-axial interaction region were used to define the cavity of the FEM. Measurements of the transmission coefficient of the 2D Bragg structures were conducted and experimental results compared with theoretical predictions. A 1 kA, 475 kV annular electron beam of diameter 7 cm was used to generate microwave radiation, the frequency of this radiation lay within the reflection zone of the 2D Bragg cavity.
Keywords :
electron beams; light reflection; light transmission; masers; 2D Bragg coaxial free electron maser; 2D Bragg structures; FEM; annular electron beam; coaxial 2D Bragg cavity; coaxial interaction region; current 1 kA; high power free electron maser; high power microwave radiation; reflection zone; size 7 cm; transmission coefficient; voltage 475 kV; Equations; Finite element methods; Three dimensional displays;
Conference_Titel :
High-Power Particle Beams (BEAMS 2004), 2004 International Conference on
Conference_Location :
St. Petersburg
Print_ISBN :
978-5-87911-088-3
