Channeling process in a bent crystal

We have investigated the channeling process of charged particles in a bent crystal. Invoking simple assumptions we derive a criterion, which determines whether channeling occurs or not. We obtain the same criterion using
We have investigated the channeling process of charged particles in a bent crystal. Invoking simple assumptions we derive a criterion, which determines whether channeling occurs or not. We obtain the same criterion using the Dirac equation. It is shown that the centrifugal force acting on the particle in the bent crystal significantly alters the effective transverse potential. The cases of axial and planar channeling are considered. The channeling probability and the dechanneling probability due to tunneling of the particle under the barrier in the effective transverse potential are estimated. These probabilities depend on the specific scaling parameter characterizing the process. Using the quasiclassical theory of synchrotron radiation we have calculated the contribution to the radiation spectrum, which arises due to the curvature of the channel. This contribution becomes significant to TeV electrons or positrons. Some practical consequences of our results are briefly discussed.
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Metadaten
Author:Andrey V. Solov'yov, Andreas Schäfer, Walter Greiner
URN:urn:nbn:de:hebis:30-30070
Document Type:Article
Language:English
Date of Publication (online):2006/07/14
Year of first Publication:1996
Publishing Institution:Univ.-Bibliothek Frankfurt am Main
Release Date:2006/07/14
Source:Physical Review E 53(1), S. 1129-1137 (1996), ©1996 The American Physical Society, http://link.aps.org/abstract/PRE/v53/p1129
HeBIS PPN:265702623
Institutes:Physik
Dewey Decimal Classification:530 Physik
PACS-Classification:03.65.-w Quantum mechanics [see also 03.67.-a Quantum information; 05.30.-d Quantum statistical mechanics; 31.30.J- Relativistic and quantum electrodynamics (QED) effects in atoms, molecules, and ions in atomic physics]
41.75.-i Charged-particle beams
61.85.+p Channeling phenomena (blocking, energy loss, etc.)
Sammlungen:Universitätspublikationen
Licence (German):License Logo Veröffentlichungsvertrag für Publikationen

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