Author: Maznev, V.P.
Paper Title Page
WEBCH02
 Development, Testing and Commissioning of Powerful High Voltage Electron Accelerator  
 
  • N.G. Tolstun, V.P. Bagrievich, A.V. Efremov, A.N. Kuzhlev, A.I. Machecha, V.P. Maznev, V.P. Ovchinnikov, D.E. Pavlukhov, M.P. Svinin
    NIIEFA, St. Petersburg, Russia
  
  A powerful high voltage electron accelerator has been designed for the use in installations for purifying of flue gases of thermal power plants (primarily, coal-fired electric power plants) from sulfur and nitrogen oxides. The design parameters of the accelerator are as follows: the energy is 1 MeV and the power is up to 500 kW in the continuous mode. A three-phase transformer-rectifier with a closed magnetic circuit operating at a frequency of 50 Hz is used as a high-voltage generator. The high-voltage generator and accelerating structure are located in a common high-pressure vessel filled with an insulating gas. Accelerated electron beam is scanned in a vacuum chamber of triangular shape and further is extracted into the atmosphere through an outlet window combined of four parallel sections measuring 60x2400 mm and covered with metal foil. The report presents the results of the development, testing of the accelerator on a NIIEFA testing facility and commissioning.  
 
WEPPC054 Updating of the "Electron-3M2" Accelerator in the Line for Radiation Curing of Polymer Coatings 551
 
  • V.P. Ovchinnikov, O.V. Borisov, I.V. Druzgalckiy, V.V. Koltsov, V.P. Maznev, A.I. Seleznev, M.P. Svinin
    NIIEFA, St. Petersburg, Russia
  
  In 2008-2009, NIIEFA specialists performed works on updating the "ELECTRON-3M" accelerator previously delivered to FSUE "Admiralty Shipyards" to be operated on the line for radiation curing of polymer coatings. After obtaining nominal parameters on the updated accelerator "ELECTRON-3M2", the intensity of bremsstrahlung radiation on the surface of the accelerator shielding was measured; the obtained data confirmed the machine compliance with corresponding norms and regulation documents. Measurements of parameters of the accelerator electron radiation field have demonstrated that the uniformity coefficient of the beam current linear density is 5%, and the symmetry coefficient amounts to 1%. The beam current and accelerating voltage instability during one hour of operation does not exceed 1%. After the updating, the lifetime of the accelerator will be not less than 10 years.