## 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.…

Author: | Andrey V. Solov'yov, Andreas Schäfer, Walter Greiner |
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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): | Veröffentlichungsvertrag für Publikationen |