System of Diagnostics of the High-Power Accelerator during Formation of Pulsed Bremsstrahlung

Abstract

High-power direct acting pulse electron accelerator came into wide use in the modern science and engineering. Nevertheless, amplitude characteristics of electron and braking radiation on the output of many accelerators characterize low values of the reproducibility from pulse to pulse, what is reflected on the quality and efficiency of the radiation technology. It is required for the optimal solving of this problem to combine the system of diagnostics of accelerating path main components and monitoring of bremsstrahlung parameters. The suggested solution consists in establishing a link between electron beam parameters at the input of the converting target and bremsstrahlung parameters after the converting target in the known geometry of measurements based on use of ‘transparent’ methods and measurers. In this case the parameters of the high-power electron beam are input characteristics of the converting target as a converter, and the parameters of the bremsstrahlung in a chosen medium and geometry are output characteristics of this converter. It is desired to determine static transfer characteristics of the converter at the given conditions of transportation of the highpower electron beam [4]. For this purpose a graduation of measurers carries out in the conditions and operating mode of this accelerator, that allows to determine static transfer characteristic of the converting target trough the measuring of current I(t), dose rate Pγ(t) and energy release in the converting target W [5]. The results of calibration of the measurers and determination on their basis spectral-energetic characteristics of the electron beam are a core of the system of diagnostics of the mode of accelerator operation and the real-time dosimetric