Title :
Interaction of TM01 and HEM11 in a TWT
Author :
Banna, S. ; Schächter, L. ; Nation, J. ; Wang, Peng
Author_Institution :
Dept. of Electr. Eng., Technion-Israel Inst. of Technol., Haifa, Israel
Abstract :
We investigate the interaction and the coupling of TM01 and HEM111 with an electron beam in a high-efficiency traveling-wave output structure operating at 9 GHz. The coupling between the symmetric and asymmetric mode may be characterized by a single parameter that represents the correlation of the transverse and longitudinal phase-spaces. In order to examine the coupling we consider a pre-bunched beam injected in a uniform structure. For a specific set of parameters simulations indicate that 0.5 MW of HEM111 power at the input is sufficient to deflect to the wall a beam of 300 A/0.85 MV guided by a 0.5 T magnetic field
Keywords :
accelerator RF systems; electron beams; particle beam dynamics; travelling wave tubes; HEM11; TM01; asymmetric mode; bunched beam; coupling; interaction; longitudinal phase-space; symmetric mode; transverse phase-space; traveling-wave output structure; traveling-wave tube; Electromagnetic fields; Electrons; Equations; Impedance; Uniform resource locators;
Conference_Titel :
Particle Accelerator Conference, 1999. Proceedings of the 1999
Conference_Location :
New York, NY
Print_ISBN :
0-7803-5573-3
DOI :
10.1109/PAC.1999.792386
