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 microrad with about 30% efficiency. The contribution of hyperchanneled states of protons to the observed beam deflection was less than 2% according to simulation results.

High-efficiency deflection of high-energy protons through axial channeling in a bent crystal

BARICORDI, Stefano;DALPIAZ, Pietro;FIORINI, Massimiliano;GUIDI, Vincenzo;MAZZOLARI, Andrea;MILAN, Riccardo;
2008

Abstract

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 microrad with about 30% efficiency. The contribution of hyperchanneled states of protons to the observed beam deflection was less than 2% according to simulation results.
W., Scandale; A., Vomiero; Baricordi, Stefano; Dalpiaz, Pietro; Fiorini, Massimiliano; Guidi, Vincenzo; Mazzolari, Andrea; Milan, Riccardo; G., Ambrosi; W. J., Burger; P., Zuccon; G., Cavoto; R., Santacesaria; P., Valente; E., Vallazza; A. G., Afonin; Chesnokov, Y. u. A.; V. A., Maisheev; I. A., Yazynin; A. D., Kovalenko; A. M., Taratin; A. S., Denisov; Ivanov, Y. u. M.; L. P., Lapina; L. G., Malyarenko; V. V., Skorogobogatov; S. A., Vavilov; D., Bolognini; S., Hasan; A., Mozzanica; M., Prest
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11392/532905
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