Title :
Design of a multi-sections solenoid for power microwave tubes
Author :
Périgo, E.A. ; Faria, R.N. ; Barroso, J.J. ; Motta, C.C.
Author_Institution :
Inst. de Pesquisas Energeticas e Nucl., Sao Paulo, Brazil
Abstract :
The design of a multi-section solenoid to be used in a power TWT focusing structure is presented in this paper. Considerations about material selection, cooling and magnetic aspects are discussed. From Biot-Savart law, it was possible to obtain an equation that describes the axial magnetic density flux profile of this kind of device taking into account the conductor finite length and the dielectric thickness. The electron paths for a beam of 4 A accelerated with 30 kV were evaluated, using a 3-D particle-in-cell code, under influence of the multi-sections solenoid focusing structure being the magnetic density flux changed from 87.5 to 350 mT.
Keywords :
electromagnetism; microwave tubes; solenoids; travelling wave tubes; 30 kV; 3D particle-in-cell code; 4 A; 87.5 to 350 mT; Biot-Savart law; TWT; axial magnetic density flux; conductor finite length; multisections solenoid; power microwave tubes; Biological materials; Conducting materials; Cooling; Dielectric devices; Dielectric materials; Equations; Magnetic devices; Magnetic flux; Magnetic materials; Solenoids;
Conference_Titel :
Microwave and Optoelectronics, 2005 SBMO/IEEE MTT-S International Conference on
Print_ISBN :
0-7803-9341-4
DOI :
10.1109/IMOC.2005.1579986
