Observation of multiple volume reflection by different planes in one bent silicon crystal for high-energy negative particles

Document identifier: oai:DiVA.org:ltu-7623
Access full text here:10.1209/0295-5075/93/56002
Keyword: Natural Sciences, Physical Sciences, Other Physics Topics, Naturvetenskap, Fysik, Annan fysik, Experimentell fysik, Experimental Physics
Publication year: 2011
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Abstract:

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.

Authors

W. Scandale

CERN
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Alberto Vomiero

INFM-CNR Sensor Lab
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E. Bagli

INFN
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S. Baricordi

INFN
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P. Dalpiaz

INFN
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M. Fiorini

INFN
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V. Guidi

INFN
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A. Mazzolari

INFN
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D. Vincenzi

INFN
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R. Milan

INFN
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G. Della Mea

Dipartimento di Ingegneria dei Materiali, Università di Trento
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E. Vallazza

INFN
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A. G. Afonin

Institute of High Energy Physics - Moscow Region
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Yu A. Chesnokov

Institute of High Energy Physics - Moscow Region
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V. A. Maisheev

Institute of High Energy Physics - Moscow Region
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I. A. Yazynin

Institute of High Energy Physics - Moscow Region
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A. D. Kovalenko

Joint Institute for Nuclear Research, Dubna
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A. M. Taratin

Joint Institute for Nuclear Research, Dubna
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A. S. Denisov

Petersburg Nuclear Physics Institute
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Yu A. Gavrikov

Petersburg Nuclear Physics Institute
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Yu M. Ivanov

Petersburg Nuclear Physics Institute
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L. P. Lapina

Petersburg Nuclear Physics Institute
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L. G. Malyarenko

Petersburg Nuclear Physics Institute
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V. V. Skorobogatov

Petersburg Nuclear Physics Institute
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V. M. Suvorov

Petersburg Nuclear Physics Institute
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V. V. Tikhomirov

Research Institute for Nuclear Problems, Belarusian State University - 220030, Minsk
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