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Control of the Distribution of the Electron Beam Dose in Radiation Therapy


A method for an active control of the dose distribution produced by an electron beam in a substance is proposed. This method is based on the effect of a magnetic field on charged particles. The results of the calculations of the dose distribution for the irradiation of water as a tissue equivalent by a beam of electrons with energies of 20–30 MeV under the exposure of a magnetic field below 2.5 T are presented. Applying a field results in a dose distribution maximum at a depth of 3–6 cm. Varying the magnetic field configuration and electron energy can modify the dose distribution profile and the maximum position. This method is promising for the use in radiation therapy.

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  1. Khan, F.M., The Physics of Radiation Therapy, Baltimore: Maryland, 1992.

    Google Scholar 

  2. Chu, W.T., Ludewigt, B.A., and Renner, T.R., Rev. Sci. Instrum., 1993, vol. 64, p. 2055.

    Google Scholar 

  3. Kostylev, V.A., Chernyaev, A.P., and Antipina, N.A., Ioniziruyushchie izlucheniya v terapii. Uchebnoe posobie (Ionizing Radiations in Therapy: A Text Book), Moscow: Mosk. Gos. Univ., 2000.

    Google Scholar 

  4. Tultaev, A.V. and Chernyaev, A.P., Claim to Patent no. 2 001 102 391, January 29, 2001.

  5. Tultaev, A.V. and Chernyaev, A.P., Preprint of Institute of Nuclear Physics, Moscow State Univ., Moscow, 2001, no. 200 1-4/644.

  6. Johns, H.E., Physics of Radiology, Springfield, Ill.: Thomas, 1961. Translated under the title Fizika radiologii, Moscow: Atomizdat, 1965.

    Google Scholar 

  7. Brun, R., Hansroul, M., Lassalle, J.C., GEANT User's Guide, 1982, DD/EE/82 ed.

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Varzar', S.M., Tultaev, A.V. & Chernyaev, A.P. Control of the Distribution of the Electron Beam Dose in Radiation Therapy. Instruments and Experimental Techniques 45, 103–106 (2002).

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