MODERNIZATION AND ADJUSTMENT OF THE MICROWAVE POWER CONTROL SYSTEM OF THE “ALMAZ-2M” ACCELERATOR

Abstract

The microwave power source of the “Almaz-2M” accelerator is controlled by supplying a microwave modulated pulse from the “Rubin” master microwave generator to the KIU-12M klystron. The “Rubin” frequency must be adjusted to the resonant frequency of the accelerator, which may change under the influence of external conditions and aging of the materials of the accelerator elements, so it is necessary to adjust the “Rubin” frequency. At the same time, the “Rubin” frequency meter –“wave meter” also needs calibration. This paper describes a method for calibrating a “wave meter” with an accuracy of 1.5 MHz. For experiments on wakefield acceleration of an electron beam using a profiled sequence of bunches, it is important to synchronize all elements of the accelerator - the gun, the master oscillator, the klystron. For this purpose, a standard accelerator launch system was carried out. This made it possible to obtain trigger pulses with a rise time of about 200 ns. Also, based on modern microcircuits, a new trigger system with a leading edge of less than 100 ns has been developed.