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Observation of nuclear dechanneling for high-energy protons in crystals
CERN.
INFM-CNR Sensor Lab.ORCID iD: 0000-0003-2935-1165
INFN Sezione di Ferrara.
INFN Sezione di Ferrara.
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Number of Authors: 342009 (English)In: Physics Letters B, ISSN 0370-2693, E-ISSN 1873-2445, Vol. 680, no 2, p. 129-132Article in journal (Refereed) Published
Abstract [en]

Channeling in a short bent silicon crystal was investigated at the CERN SPS using 400-GeV/c protons with an angular spread much narrower than the critical channeling angle. Particle dechanneling due to multiple scattering on the atomic nuclei of the crystal was observed and its dechanneling length was measured to be about 1.5 mm. For a crystal with length comparable to such dechanneling length, an efficiency of 83.4% was recorded, which is close to the maximum value expected for a parallel beam and exceeds the previously known limitation of deflection efficiency for long crystals. © 2009 Elsevier B.V. All rights reserved.

Place, publisher, year, edition, pages
2009. Vol. 680, no 2, p. 129-132
Keywords [en]
Beam, Channeling, Crystal, Deflection
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Other Physics Topics
Research subject
Experimental Physics
Identifiers
URN: urn:nbn:se:ltu:diva-10294DOI: 10.1016/j.physletb.2009.08.046Scopus ID: 2-s2.0-69949085187Local ID: 916d4deb-5cb9-4722-bd5e-c254008bd3c0OAI: oai:DiVA.org:ltu-10294DiVA, id: diva2:983236
Note

Upprättat; 2009; 20141211 (albvom)

Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2019-08-16Bibliographically approved

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Vomiero, Alberto

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