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Kononov, O.E.

Paper Title Page
WELO02

 Neutron Therapy Facility Based On High Current Proton Accelerator KG-2,5 

  • V.N.Kononov, M.V.Bohovko, O.E.Kononov, B.I.Fursov
    SSC RF Insttute for Physics and Power Engineering, Obninsk, Russia

In terms of activity directed to create therapeutic facility on high current cascade generator KG-2,5 three accelerator based intensive neutron sources was investigated for neutron capture, fast and boost therapy. To make possible neutron capture therapy beam shaping assembly (BSA) was designed and manufactured. BSA transform neutron spectra from 7Li(p,n)7Be reaction in to epithermal energy neutrons with energy 1-10E4 eV. Mostly appropriate BSA materials and optimal BSA configuration was found as a results of computer simulations. Calculation results were verified by direct neutrons spectra measurements by time-of-flight method. For fast neutron therapy proposed to use neutron source with energy 1-17 MeV. Special assembly for shielding and beam shaping was designed. It make possible to form neutron beams with various geometry, including narrow neutron beam which looks as analog of gamma-knife. Also possibility to perform combined neutron-electron therapy at one exposition was studied. Created facility is prototype of neutron therapeutic facility for maintaining at oncology clinic. Manufacturing series of such facility will significantly increase area of neutrons usage in radiation oncology techniques.

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