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, MICHELA
DOIAbstract
Beam deflection due to axial channeling in a silicon crystal bent along the 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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