High-Efficiency Deflection of High-Energy Protons through Axial Channeling in a Bent Crystal

Scandale, W; Vomiero, A; Baricordi, S; Dalpiaz, P; Fiorini, M; Guidi, V; Mazzolari, A; Della Mea, G; Milan, R; Ambrosi, G; Bertucci, B; Burger, Wj; Zuccon, P; Cavoto, G; Luci, C; Santacesaria, R; Valente, P; Vallazza, E; Afonin, Ag; Chesnokov, Ya; Maisheev, Va; Yazynin, Ia; Kovalenko, Ad; Taratin, Am; Denisov, As; Gavrikov, Ya; Ivanov, Ym; Lapina, Lp; Malyarenko, Lg; Skorobogatov, Vv; Suvorov, Vm; Vavilov, Sa; Bolognini, D; Hasan, S; Mozzanica, A; Prest, M

doi:10.1103/PhysRevLett.101.164801

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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.

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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11383/13014

Titolo:	High-Efficiency Deflection of High-Energy Protons through Axial Channeling in a Bent Crystal
Autori interni:	PREST, MICHELA
Data di pubblicazione:	2008
Rivista:	PHYSICAL REVIEW LETTERS
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 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.
Handle:	http://hdl.handle.net/11383/13014
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