On the Influence of the Operating Frequency Shift on the Efficiency of the Accelerating Structure of the LUE-200 Accelerator

The results of analytical estimates of the change in the efficiency of the accelerating structure and the accelerating system as a whole with a shift in the operating frequency of the microwave system of a linear electron accelerator with a traveling wave in the 10-cm range are presented. In order to verify the estimates, the energy characteristics of the electron beam are measured when the frequency of the master oscillator at the microwave power source is changed and the natural frequencies of the SLED system resonators of the LUE-200 accelerator are selected (IREN facility of the Joint Institute for Nuclear Research, Dubna).