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Apparatus to study crystal channeling and volume reflection phenomena at the SPS H8 beamline
CERN.
CERN.
Fermi National Accelerator Laboratory.
INFN Laboratori Nazionali di Legnaro.
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Number of Authors: 52
2008 (English)In: Review of Scientific Instruments, ISSN 0034-6748, E-ISSN 1089-7623, Vol. 79, no 2, article id 23303Article in journal (Refereed) Published
Abstract [en]

A high performance apparatus has been designed and built by the H8-RD22 collaboration for the study of channeling and volume reflection phenomena in the interaction of 400 GeVc protons with bent silicon crystals, during the 2006 data taking in the external beamline H8 of the CERN SPS. High-quality silicon short crystals were bent by either anticlastic or quasimosaic effects. Alignment with the highly parallel (8 μrad divergence) proton beam was guaranteed through a submicroradian goniometric system equipped with both rotational and translational stages. Particle tracking was possible by a series of silicon microstrip detectors with high-resolution and a parallel plate gas chamber, triggered by various scintillating detectors located along the beamline. Experimental observation of volume reflection with 400 GeVc protons proved true with a deflection angle of (10.4±0.5) μrad with respect to the unperturbed beam, with a silicon crystal whose (111) planes were parallel to the beam. © 2008 American Institute of Physics.

Place, publisher, year, edition, pages
2008. Vol. 79, no 2, article id 23303
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Experimental physics
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URN: urn:nbn:se:ltu:diva-7560DOI: 10.1063/1.2832638Scopus ID: 40149084479Local ID: 5f230864-fe19-432c-9757-2aa3b7faee5dOAI: oai:DiVA.org:ltu-7560DiVA: diva2:980450
Note

Upprättat; 2008; 20141211 (albvom)

Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2017-11-24Bibliographically approved

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