CALIBRATION OF ELECTRON BEAM MEASURING CHANNELS IN TECHNOLOGICAL LINACS

Technologies based on electron (bremsstrahlung) irradiation demand continuous monitoring of the main beam parameters (energy, current, position etc.) and periodic calibration of the beam control system as well. Recently a number of technological electron linacs with an energy 10...30 MeV and pulse current up to 1A have been put in operation in National Science Center “KIPT” [1]. Each of them is provided with a system for scanning the output beam within the limits of 50 x 200 mm. The inductive wide-aperture non-disturbing sensor has been designed to control electron energy and beam position within the exit window of the accelerator. The monitor is provided with appropriate electronic set up. For its calibration relative to electron energy and beam current value the combined measuring transducer of “calorimeter-Faraday cup ” type was elaborated. The report contains results of the computer modelling, design and investigation of transducers as well as their application in control systems of accelerators