Title :
Potential and rotational Space-charge fields In a free electron maser
Author :
Goryashko, V.A. ; Ilyenko, Kostyantyn
Author_Institution :
Inst. for Radiophys. & Electron., NASU, Kharkov
Abstract :
Simulation of periodic signal amplification regime in a free-electron maser (FEM) is carried out taking into account the space-charge field. We study influence both of the potential and rotational space-charge fields. An approximate method of calculation of the rotational part of the space-charge field is proposed. Its idea lies in approximation of an infinite set of rotational cutoff modes by some quasi-static electric and magnetic fields. We determine that the rotational part of the space-charge field suppresses the defocusing influence of the potential part on electron beam bunching.
Keywords :
free electron lasers; masers; particle beam bunching; space charge; electron beam bunching; free electron maser; periodic signal amplification; potential space-charge fields; quasistatic electric fields; quasistatic magnetic fields; rotational cutoff modes; rotational space-charge fields; Electrons; Helium; Indium tin oxide; Masers; Voltage control;
Conference_Titel :
Microwave & Telecommunication Technology, 2008. CriMiCo 2008. 2008 18th International Crimean Conference
Conference_Location :
Sevastopol, Crimea
Print_ISBN :
978-966-335-166-7
Electronic_ISBN :
978-966-335-169-8
DOI :
10.1109/CRMICO.2008.4676338
