Title : 
High purity mode operation of a gyrotron
         
        
            Author : 
Ogawa, Isamu ; Idehara, T. ; Maeda, Shigenobu ; Pavlichenko, R. ; Mitsudo, S. ; Wagner, Dietmar ; Thumm, Manfred
         
        
            Author_Institution : 
Fac. of Eng., Fukui Univ., Japan
         
        
        
        
        
            Abstract : 
Summary form only given, as follows. High frequency gyrotrons are characterized by their capacity to deliver high powers and their frequency step-tunability due to the alternation of the operating mode. Very often the gyrotron output needs to be converted into a Gaussian-like beam because the gyrotron generates radiation with TE/sub mn/ mode structure. High output mode purity is necessary for an effective conversion. In order to improve mode purity, a nonlinear cavity which was designed using a scattering matrix code and exquisitely fabricated is installed in the Gyrotron FU VA.
         
        
            Keywords : 
gyrotrons; Gaussian-like beam; Gyrotron FU VA; effective conversion; frequency step-tunability; gyrotron high purity mode operation; gyrotron output; high frequency gyrotrons; high output mode purity; nonlinear cavity; operating mode; radiation generation; scattering matrix code; Frequency; Gaussian processes; Gyrotrons; High power microwave generation; Insulation; Kilns; Plasmas; Power engineering and energy; Scattering; Tellurium;
         
        
        
        
            Conference_Titel : 
Plasma Science, 2002. ICOPS 2002. IEEE Conference Record - Abstracts. The 29th IEEE International Conference on
         
        
            Conference_Location : 
Banff, Alberta, Canada
         
        
            Print_ISBN : 
0-7803-7407-X
         
        
        
            DOI : 
10.1109/PLASMA.2002.1030603