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High-efficiency volume reflection of an ultrarelativistic proton beam with a bent silicon crystal |
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| Authors: | Scandale Walter Still Dean A Carnera Alberto Della Mea Gianantonio De Salvador Davide Milan Riccardo Vomiero Alberto Baricordi Stefano Dalpiaz Pietro Fiorini Massimiliano Guidi Vincenzo Martinelli Giuliano Mazzolari Andrea Milan Emiliano Ambrosi Giovanni Azzarello Philipp Battiston Roberto Bertucci Bruna Burger William J Ionica Maria Zuccon Paolo Cavoto Gianluca Santacesaria Roberta Valente Paolo Vallazza Erik Afonin Alexander G Baranov Vladimir T Chesnokov Yury A Kotov Vladilen I Maisheev Vladimir A Yaznin Igor A Afansiev Sergey V Kovalenko Alexander D Taratin Alexander M Denisov Alexander S |
| Affiliation: | CERN, European Organization for Nuclear Research, CH-1211 Geneva 23, Switzerland. |
| 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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