23–28 Sept 2012
Alghero, Sardegna, Italy
Europe/Rome timezone

Scattering of Relativistic Particles in Bent Crystal with Variable Curvature

25 Sept 2012, 10:10
15m
Hotel Calabona (Hotel Calabona)

Hotel Calabona

Hotel Calabona

Channeling & Crystal Collimation S3.1 Channeling & Crystal Collimation

Speaker

Dr Gennady Kovalev (UofM)

Description

The scattering of relativistic particles in a bent crystal potential with a variable curvature is considered using QM curvilinear squared Dirac equation and its classical relativistic spinless analogue with account of a dissipation. The equations are solved numerically and the result demonstrates several distinct features: • The reflection of positive and negative particles when. • The refraction of positive and negative particles, even in the case of zero friction. • The negative singularities (spiral scattering). • The total number of refracted particles has a maximum near a critical curvature. For high curvature, the number of refracted and reflected particles becomes equal. • For thin crystal, there is ”the effect of empty core”: positive particles are refracted, negative particles are deflected. • The phenomenon of spiral scattering and refraction is a primary coherent effect and exists in the absence of dissipation.

Primary author

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