Observation of multiple volume reflection by different planes in one bent silicon crystal for high-energy negative particles
- Scandale, W.
- Vomiero, A.
- Bagli, E.
- Baricordi, S.
- Dalpiaz, P.
- Fiorini, M.
- Guidi, V.
- Mazzolari, A.
- Vincenzi, D.
- Milan, R.
- Della Mea, G.
- Vallazza, E.
- Afonin, A. G.
- Chesnokov, Y. A.
- Maisheev, V. A.
- Yazynin, I. A.
- Kovalenko, A. D.
- Taratin, A. M.
- Denisov, A. S.
- Gavrikov, Y. A.
- Ivanov, Y. M.
- Lapina, L. P.
- Malyarenko, L. G.
- Skorobogatov, V. V.
- Suvorov, V. M.
- Vavilov, S. A.
- Bolognini, D.
- Hasan, S.
- Mattera, A.
- Prest, M.
- Tikhomirov, V. V.
DOIAbstract
Multiple volume reflection by different planes passing through the 〈111〉 axis in a bent silicon crystal was observed for the first time for 150 GeV/c negative particles, π- mesons, at one of the secondary beams of the CERN SPS. The beam of π- mesons was deflected opposite to the crystal bend by an angle of about 48 μrad, which is 4.6 times larger than in a single volume reflection by the (110) bent planes. The one-side deflection efficiency was about 65%. Multiple volume reflection transforms to a single volume reflection when the orientation angle of the 〈111〉 axis relative to the beam direction is increased. Copyright © 2011 Europhysics Letters Association
Add to ORKG