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Observation of deflection of a beam of multi-GeV electrons by a thin crystal.
Wienands, U; Markiewicz, T W; Nelson, J; Noble, R J; Turner, J L; Uggerhøj, U I; Wistisen, T N; Bagli, E; Bandiera, L; Germogli, G; Guidi, V; Mazzolari, A; Holtzapple, R; Miller, M.
Afiliação
  • Wienands U; SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA.
  • Markiewicz TW; SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA.
  • Nelson J; SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA.
  • Noble RJ; SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA.
  • Turner JL; SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA.
  • Uggerhøj UI; Department of Physics and Astronomy, University of Aarhus, Ny Munkegade 120, DK-8000 Aarhus, Denmark.
  • Wistisen TN; Department of Physics and Astronomy, University of Aarhus, Ny Munkegade 120, DK-8000 Aarhus, Denmark.
  • Bagli E; Department of Physics and Earth Sciences of the University of Ferrara, and INFN Section of Ferrara, Via Saragat 1/C, I-44122 Ferrara, Italy.
  • Bandiera L; Department of Physics and Earth Sciences of the University of Ferrara, and INFN Section of Ferrara, Via Saragat 1/C, I-44122 Ferrara, Italy.
  • Germogli G; Department of Physics and Earth Sciences of the University of Ferrara, and INFN Section of Ferrara, Via Saragat 1/C, I-44122 Ferrara, Italy.
  • Guidi V; Department of Physics and Earth Sciences of the University of Ferrara, and INFN Section of Ferrara, Via Saragat 1/C, I-44122 Ferrara, Italy.
  • Mazzolari A; Department of Physics and Earth Sciences of the University of Ferrara, and INFN Section of Ferrara, Via Saragat 1/C, I-44122 Ferrara, Italy.
  • Holtzapple R; California Polytechnic State University, San Luis Obispo, California 93407, USA.
  • Miller M; California Polytechnic State University, San Luis Obispo, California 93407, USA.
Phys Rev Lett ; 114(7): 074801, 2015 Feb 20.
Article em En | MEDLINE | ID: mdl-25763959
ABSTRACT
We report on an experiment performing channeling and volume reflection of a high-energy electron beam using a quasimosaic, bent silicon (111) crystal at the End Station A Test Beam at SLAC. The experiment uses beams of 3.35 and 6.3 GeV. In the channeling orientation, deflections of the beam of 400 µrad for both energies with about 22% efficiency are observed, while in the volume-reflection orientation, deflection of the beam by 120 µrad at 3.35 GeV and by 80 µrad at 6.3 GeV is observed with 86%-95% efficiency. Quantitative measurements of the channeling efficiency, surface transmission, and dechanneling length are taken. These are the first quantitative measurements of channeling and volume reflection using a primary beam of multi-GeV electrons.
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Base de dados: MEDLINE Idioma: En Ano de publicação: 2015 Tipo de documento: Article
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Base de dados: MEDLINE Idioma: En Ano de publicação: 2015 Tipo de documento: Article