Calculation of the thermal conditions for a klystron output resonator

Results of numerical calculations of thermal conditions for a klystron output resonator are presented taking into account two sources of thermal heating-current losses in the flight channel and RF wall losses in the resonator excited by a beam. Dependences (of the maximum temperature change, maximum deformation and resonance frequency displacement) on the value of thermal losses for two variants of the wall material (steel and copper) are analyzed. The calculation results permit to select the optimal regime of the klystron operation with regard for thermal losses and thermal deformations. 3 refs.; 7 figs