Beam deflection due to axial channeling in a silicon crystal bent along the 111 axis was observed with 400GeV/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 50μrad with about 30% efficiency. The contribution of hyperchanneled states of protons to the observed beam deflection was less than 2% according to simulation results. © 2008 The American Physical Society.
High-efficiency deflection of high-energy protons through axial channeling in a bent crystal / Walter, Scandale; Alberto, Vomiero; Stefano, Baricordi; Pietro, Dalpiaz; Massimiliano, Fiorini; Vincenzo, Guidi; Andrea, Mazzolari; Gianantonio Della, Mea; Riccardo, Milan; Giovanni, Ambrosi; Bruna, Bertucci; William, Burger; Paolo, Zuccon; Cavoto, Gianluca; Luci, Claudio; Roberta, Santacesaria; Paolo, Valente; Erik, Vallazza; Alexander, Afonin; Yury, Chesnokov; Vladimir, Maisheev; Igor, Yazynin; Alexander, Kovalenko; Alexander, Taratin; Alexander, Denisov; Yury, Gavrikov; Yuri, Ivanov; Lyubov, Lapina; Liudmila, Malyarenko; Vyacheslav, Skorobogatov; Vsevolod, Suvorov; Sergey, Vavilov; Davide, Bolognini; Said, Hasan; Aldo, Mozzanica; Michela, Prest. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 101:16(2008). [10.1103/physrevlett.101.164801]
High-efficiency deflection of high-energy protons through axial channeling in a bent crystal
CAVOTO, Gianluca;LUCI, Claudio;
2008
Abstract
Beam deflection due to axial channeling in a silicon crystal bent along the 111 axis was observed with 400GeV/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 50μrad with about 30% efficiency. The contribution of hyperchanneled states of protons to the observed beam deflection was less than 2% according to simulation results. © 2008 The American Physical Society.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
