Author: Kokhanyuk, V.M.
Paper Title Page
WEX04
 Radionuclide Production by High Intensity Proton Irradiation at the INR Linear Accelerator  
 
  • S.V. Ermolaev, A. Feschenko, O.V. Grekhov, Yu.V. Kiselev, V.M. Kokhanyuk, L.V. Kravchuk, A.N. Mirzojan, V.A. Moiseev, V.L. Serov, A.K. Skasyrskaya, B. Zhuikov
    RAS/INR, Moscow, Russia
  
  The INR linear accelerator provides a high intensity beam of intermediate-energy protons for both applied and fundamental research. The beam at 160 MeV can be extracted from the main line and delivered to an isotope production facility. Specially designed targets are irradiated at the facility to produce Curie amounts of various radionuclides for medicine and industry, namely, 82Sr, 103Pd, 117mSn, 225Ac, 223Ra, 109Cd, 22Na. Production rate of radionuclide is usually limited by the ability of target to sustain the high intensity beam. Targetry development comprises: - Choice of target material with appropriate nuclear (cross-section of a desired radionuclide) and thermal physics (thermal conductivity, heat capacity) properties, as well as material for target encapsulation; - Analysis of interaction of proton beam with target material. Parameters of beam, cooling water, and other factors are being investigated to result in tentative geometric parameters of target. Spatial-energetic degradation of beam is evaluated by a Monte Carlo code STRAGL*; - Simulation of temperature generated in the target due to heat release of protons. Computations are performed by means of the software complex ANSYS; - Fabrication and irradiation of experimental targets; control of target integrity during irradiation and after it via monitoring the electroconductivity and radioactive impurities of cooling water, visual inspection of target, etc., optimization of target design for routine production.
* A.V. Dementyev, N.M. Sobolevsky, Radiation Measurements, 1999; v.30, p.553. 		 
slides icon Slides WEX04 [4.515 MB]  
 
THPSC45 Use of Fast Magnetic Beam Raster System for INR Isotope Production Facility 426
 
  • O. Volodkevich, S. Bragin, A. Feschenko, O.V. Grekhov, Yu.V. Kiselev, V.M. Kokhanyuk, V.N. Mikhailov, A.N. Mirzojan, V.L. Serov
    RAS/INR, Moscow, Russia
  
  Fast magnetic beam raster system for INR isotope production facility is developed and implemented. The system enables to increase the isotope production efficiency by providing a possibility of using a higher intensity proton beam on the target of the isotope production facility. First experimental results of system application for irradiation of the targets are presented.