High-Efficiency Volume Reflection of an Ultrarelativistic Proton Beam with a Bent Silicon Crystal
W. Scandale(European Organization for Nuclear Research), D. Still, A. Carnera(Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Legnaro), G. Della Mea(Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Legnaro), D. De Salvador(University of Padua), R. Milan(Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Legnaro), Alberto Vomiero(Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Legnaro), S. Baricordi, P. Dalpiaz, M. Fiorini, V. Guidi, G. Martinelli, A. Mazzolari, E. Milan, G. Ambrosi, P. Azzarello, R. Battiston, B. Bertucci, W.J. Burger, M. Ionica, P. Zuccon, G. Cavoto, R. Santacesaria, P. Valente, E. Vallazza, A. G. Afonin, V. T. Baranov, Yury A. Chesnokov, V.I. Kotov, V. A. Maisheev, Igor A. Yaznin, Sergey V. Afansiev, A. D. Kovalenko, A.M. Taratin, A.S. Denisov, Yu.A. Gavrikov, Yuri M. Ivanov, V. G. Ivochkin, Sergey V. Kosyanenko, A. A. Petrunin, V.V. Skorobogatov, V.M. Suvorov, Davide Bolognini, L. Foggetta, S. Hasan, M. Prest
Cited by 132Open Access
Abstract
The volume reflection phenomenon was detected while investigating 400 GeV proton interactions with bent silicon crystals in the external beam H8 of the CERN Super Proton Synchrotron. Such a process was observed for a wide interval of crystal orientations relative to the beam axis, and its efficiency exceeds 95%, thereby surpassing any previously observed value. These observations suggest new perspectives for the manipulation of high-energy beams, e.g., for collimation and extraction in new-generation hadron colliders, such as the CERN Large Hadron Collider.
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