| Article | |
| Title | High-Efficiency Deflection of High-Energy Protons through Axial Channeling in a Bent Crystal |
| Author(s) | Scandale, Walter (CERN) ; Vomiero, Alberto (INFM, Brescia) ; Baricordi, Stefano (INFN, Ferrara ; Ferrara U.) ; Dalpiaz, Pietro (INFN, Ferrara ; Ferrara U.) ; Fiorini, Massimiliano (INFN, Ferrara ; Ferrara U.) ; Guidi, Vincenzo (INFN, Ferrara ; Ferrara U.) ; Mazzolari, Andrea (INFN, Ferrara ; Ferrara U.) ; Della Mea, Gianantonio (INFN, Legnaro) ; Milan, Riccardo (INFN, Legnaro) ; Ambrosi, Giovanni (INFN, Perugia ; Perugia U.) ; Bertucci, Bruna (INFN, Perugia ; Perugia U.) ; Burger, William J (INFN, Perugia ; Perugia U.) ; Zuccon, Paolo (INFN, Perugia ; Perugia U.) ; Cavoto, Gianluca (INFN, Rome) ; Luci, Claudio (INFN, Rome) ; Santacesaria, Roberta (INFN, Rome) ; Valente, Paolo (INFN, Rome) ; Vallazza, Erik (INFN, Trieste) ; Afonin, Alexander G (Serpukhov, IHEP) ; Chesnokov, Yury A (Serpukhov, IHEP) ; Maisheev, Vladimir A (Serpukhov, IHEP) ; Yazynin, Igor A (Serpukhov, IHEP) ; Kovalenko, Alexander D (Dubna, JINR) ; Taratin, Alexander M (Dubna, JINR) ; Denisov, Alexander S (St. Petersburg, INP) ; Gavrikov, Yury A (St. Petersburg, INP) ; Ivanov, Yuri M (St. Petersburg, INP) ; Lapina, Lyubov P (St. Petersburg, INP) ; Malyarenko, Liudmila G (St. Petersburg, INP) ; Skorobogatov, Vyacheslav V (St. Petersburg, INP) ; Suvorov, Vsevolod M (St. Petersburg, INP) ; Vavilov, Sergey A (St. Petersburg, INP) ; Bolognini, Davide (Insubria U., Como ; INFN, Milan) ; Hasan, Said (Insubria U., Como ; INFN, Milan) ; Mozzanica, Aldo (Insubria U., Como ; INFN, Milan) ; Prest, Michela (Insubria U., Como ; INFN, Milan) |
| Publication | 2008 |
| In: | Phys. Rev. Lett. 101 (2008) 164801 |
| DOI | 10.1103/PhysRevLett.101.164801 |
| Subject category | Accelerators and Storage Rings |
| 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 μrad 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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