Volume Reflection and Refraction of Relativistic Particles in Bent Crystals

Details Volume Reflection and Refraction of Relativistic Particles in Bent Crystals Volume Reflection and Refraction of Relativistic Particles in Bent Crystals

2007-12-06

arxiv.org/abs/0712.0858v1

JETP Lett.87:87-91,2008

Physics

Accelerator Physics

13 pages, no fig

Scientific paper

10.1007/s11448-008-2005-5

The quasi-channeling of positive and negative relativistic particles in a bent crystal is studied using the classical deflection function. It was shown that the potential scattering in a central field of bounded ring-like potentials may produce the ``reflected'' and ``refracted'' fractions of scattered particles. For particles with positive charge the ``reflected'' fraction is mainly presented; at the same time we predict that for particles with negative charge the ``refracted'' fraction should dominate. The effect of ``empty core'' for central scattering is also discussed. The average deflection angles for volume ``reflection'' and ``refraction'' are derived for accepted potential model of the crystal. The calculated average ``reflection'' angle is in satisfactory agreement with recent experimental data \cite{ivanov_2006}

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