Beam deflection due to axial channeling in a silicon crystal bent along the < 111 > axis was observed with 400 GeV/c protons at the CERN Super Proton Synchrotron. The condition for doughnut scattering of protons by the atomic strings of the crystal was attained. Such a condition allowed one to observe a beam deflection of 50 mu rad with about 30% efficiency. The contribution of hyperchanneled states of protons to the observed beam deflection was less than 2% according to simulation results.
Autori: | |
Data di pubblicazione: | 2008 |
Titolo: | High-Efficiency Deflection of High-Energy Protons through Axial Channeling in a Bent Crystal |
Rivista: | PHYSICAL REVIEW LETTERS |
Digital Object Identifier (DOI): | 10.1103/PhysRevLett.101.164801 |
Codice identificativo ISI: | WOS:000260141300025 |
Codice identificativo Scopus: | 2-s2.0-54849411328 |
Parole Chiave: | Bent silicon crystal; axial channeling; doughnut scattering |
URL: | http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.101.164801 |
Appare nelle tipologie: | Articolo su Rivista |
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