Calculation of absorbed dose radial distribution at an incidence of light nuclei at 1 mrad angle onto the iron target

Calculations of the radial dose distributions in a ''window frame'' type dipole magnet were carried out; the distributions arise at an incidence of light relativistic nuclei at 1 mrad angle onto the aperture walls. A set of programs based on the cascade-evaporational model of nuclear-nuclear interactions is used to carry out the ca culations. For the light nuclei with approximately 1 GeV x nuclsup(-1) energies the absorbed dose in a layer of upto 4g x cmsup(-2) thick is formed by the ionization losses of primary nuclei, by the proton-meson component of a internuclear cascade and by fragments of a projectile and target-nucleus. The obtained radial distributions can be used for estimation of over heating in accelerator dipole magnet coils at the light nucleus impinge at asub(E)=1 mrad angle onto the ion guide wall