Sun Dimin, Ma Guowu, Huang Yinhu, et al. Design of iris cavity for TE02 mode W-band third harmonic gyrotron[J]. High Power Laser and Particle Beams, 2015, 27: 123004. doi: 10.11884/HPLPB201527.123004
Citation:
Sun Dimin, Ma Guowu, Huang Yinhu, et al. Design of iris cavity for TE02 mode W-band third harmonic gyrotron[J]. High Power Laser and Particle Beams, 2015, 27: 123004. doi: 10.11884/HPLPB201527.123004
Sun Dimin, Ma Guowu, Huang Yinhu, et al. Design of iris cavity for TE02 mode W-band third harmonic gyrotron[J]. High Power Laser and Particle Beams, 2015, 27: 123004. doi: 10.11884/HPLPB201527.123004
Citation:
Sun Dimin, Ma Guowu, Huang Yinhu, et al. Design of iris cavity for TE02 mode W-band third harmonic gyrotron[J]. High Power Laser and Particle Beams, 2015, 27: 123004. doi: 10.11884/HPLPB201527.123004
The design of an iris cavity for a W-band third harmonic gyrotron is presented. The gyrotron is designed to operate at the low loss, circular symmetric TE02 mode. The minimum start current is 2.9 A and the ohmic efficiency is 67%. When the gyrotron is driven by a 45 kV, 4 A electron beam with an orbital-to-axial velocity ratio equal to 1.5, an output power of 25.7 kW at 94.8 GHz is predicted from PIC simulation, corresponding to an efficiency of 14.3%.