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Multiple volume reflections of high-energy protons in a sequence of bent silicon crystals assisted by volume capture

Scandale, W. (author)
CERN, European Organization for Nuclear Research, CH-1211 Geneva 23, Switzerland
Vomiero, Alberto (author)
INFM-CNR, Via Vallotti 9, 25133 Brescia, Italy
Bagli, E. (author)
INFN Sezione di Ferrara, Dipartimento di Fisica, Università di Ferrara Via Saragat 1, 44100 Ferrara, Italy
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Baricordi, S. (author)
INFN Sezione di Ferrara, Dipartimento di Fisica, Università di Ferrara Via Saragat 1, 44100 Ferrara, Italy
Dalpiaz, P. (author)
INFN Sezione di Ferrara, Dipartimento di Fisica, Università di Ferrara Via Saragat 1, 44100 Ferrara, Italy
Fiorini, M. (author)
INFN Sezione di Ferrara, Dipartimento di Fisica, Università di Ferrara Via Saragat 1, 44100 Ferrara, Italy
Guidi, V. (author)
INFN Sezione di Ferrara, Dipartimento di Fisica, Università di Ferrara Via Saragat 1, 44100 Ferrara, Italy
Mazzolari, A. (author)
INFN Sezione di Ferrara, Dipartimento di Fisica, Università di Ferrara Via Saragat 1, 44100 Ferrara, Italy
Vincenzi, D. (author)
INFN Sezione di Ferrara, Dipartimento di Fisica, Università di Ferrara Via Saragat 1, 44100 Ferrara, Italy
Milan, R. (author)
INFN Laboratori Nazionali di Legnaro, Viale Università 2, 35020 Legnaro (PD), Italy
Della Mea, Gianantonio (author)
Dipartimento di Ingegneria dei Materiali e Tecnologie Industriali, Università di Trento, Via Mesiano 77, 38050 Trento, Italy
Vallazza, E. (author)
INFN Sezione di Trieste, Via Valerio 2, 34127 Trieste, Italy
Afonin, A. G. (author)
Institute of High Energy Physics, Moscow Region, RU-142284 Protvino, Russia
Chesnokov, Yu.A. (author)
Institute of High Energy Physics, Moscow Region, RU-142284 Protvino, Russia
Maisheev, V. A. (author)
Institute of High Energy Physics, Moscow Region, RU-142284 Protvino, Russia
Yazynin, I. A. (author)
Institute of High Energy Physics, Moscow Region, RU-142284 Protvino, Russia
Kovalenko, A. D. (author)
Joint Institute for Nuclear Research, Joliot-Curie 6, 141980 Dubna, Moscow Region, Russia
Taratin, A. M. (author)
Joint Institute for Nuclear Research, Joliot-Curie 6, 141980 Dubna, Moscow Region, Russia
Denisov, A. S. (author)
Petersburg Nuclear Physics Institute, 188300 Gatchina, Leningrad Region, Russia
Gavrikov, Yu.A. (author)
Petersburg Nuclear Physics Institute, 188300 Gatchina, Leningrad Region, Russia
Ivanov, Yu.M. (author)
Petersburg Nuclear Physics Institute, 188300 Gatchina, Leningrad Region, Russia
Lapina, L. P. (author)
Petersburg Nuclear Physics Institute, 188300 Gatchina, Leningrad Region, Russia
Malyarenko, L.G. (author)
Petersburg Nuclear Physics Institute, 188300 Gatchina, Leningrad Region, Russia
Skorobogatov, V. V. (author)
Petersburg Nuclear Physics Institute, 188300 Gatchina, Leningrad Region, Russia
Suvorov, V. M. (author)
Petersburg Nuclear Physics Institute, 188300 Gatchina, Leningrad Region, Russia
Vavilov, S.A. (author)
Petersburg Nuclear Physics Institute, 188300 Gatchina, Leningrad Region, Russia
Bolognini, D. (author)
Università dell'Insubria, via Valleggio 11, 22100 Como, Italy; INFN Sezione di Milano Bicocca, Piazza della Scienza 3, 20126 Milano, Italy
Hasan, S. (author)
Università dell'Insubria, via Valleggio 11, 22100 Como, Italy; INFN Sezione di Milano Bicocca, Piazza della Scienza 3, 20126 Milano, Italy
Prest, M. (author)
Università dell'Insubria, via Valleggio 11, 22100 Como, Italy; INFN Sezione di Milano Bicocca, Piazza della Scienza 3, 20126 Milano, Italy
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 (creator_code:org_t)
Elsevier, 2010
2010
English.
In: Physics Letters B. - : Elsevier. - 0370-2693 .- 1873-2445. ; 688:4-5, s. 284-288
Related links:
https://doi.org/10.1...
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  • Journal article (peer-reviewed)
Abstract Subject headings
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  • Multiple volume reflections of the 400 GeV / c proton beam by the sequence of fourteen bent silicon strips has been studied at the CERN SPS. The sequence is close to be parallel that is the spread of the strip orientation angles is much smaller than their bend angle and eleven strips working coherently in the regime of volume reflections deflected the beam by 110 μrad with the efficiency 88%, which is significantly larger than the estimation based on independent reflections. The mechanism giving the efficiency increase has been studied by simulation. It appears that many particles volume captured in one of the strips take part in volume reflections in the subsequent ones. Such a crystal multi reflector can be successfully used as a primary collimator for the beam halo collimation of high-energy accelerators.

Subject headings

NATURVETENSKAP  -- Fysik -- Annan fysik (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences -- Other Physics Topics (hsv//eng)

Keyword

Beam
Channeling
Crystal
Deflection
Volume reflection

Publication and Content Type

ref (subject category)
art (subject category)

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