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Tobias Nyholm Wistisen

Observation of Quasichanneling Oscillations

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Dokumenter

DOI

  • T. N. Wistisen
  • R. E. Mikkelsen
  • U. I. Uggerhoj
  • U. Wienands, PULSE Inst, Stanford Linear Accelerator Center, United States Department of Energy (DOE), Stanford University, SLAC Natl Accelerator Lab
  • ,
  • T. W. Markiewicz, PULSE Inst, Stanford Linear Accelerator Center, United States Department of Energy (DOE), Stanford University, SLAC Natl Accelerator Lab
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  • S. Gessner, PULSE Inst, Stanford Linear Accelerator Center, United States Department of Energy (DOE), Stanford University, SLAC Natl Accelerator Lab
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  • M. J. Hogan, PULSE Inst, Stanford Linear Accelerator Center, United States Department of Energy (DOE), Stanford University, SLAC Natl Accelerator Lab
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  • R. J. Noble, PULSE Inst, Stanford Linear Accelerator Center, United States Department of Energy (DOE), Stanford University, SLAC Natl Accelerator Lab
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  • R. Holtzapple, Calif Polytech State Univ San Luis Obispo, California Polytechnic State University San Luis Obispo, California State University System, Dept Phys
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  • S. Tucker, Calif Polytech State Univ San Luis Obispo, California Polytechnic State University San Luis Obispo, California State University System, Dept Phys
  • ,
  • V. Guidi, Univ Ferrara, University of Ferrara, Dept Phys & Earth Sci
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  • A. Mazzolari, Univ Ferrara, University of Ferrara, Dept Phys & Earth Sci
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  • E. Bagli, Univ Ferrara, University of Ferrara, Dept Phys & Earth Sci
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  • L. Bandiera, Univ Ferrara, University of Ferrara, Dept Phys & Earth Sci
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  • A. Sytov, Univ Ferrara, University of Ferrara, Dept Phys & Earth Sci
  • ,
  • SLAC E-212 Collaboration

We report on the first experimental observations of quasichanneling oscillations, recently seen in simulations and described theoretically. Although above-barrier particles penetrating a single crystal are generally seen as behaving almost as in an amorphous substance, distinct oscillation peaks nevertheless appear for particles in that category. The quasichanneling oscillations were observed at SLAC National Accelerator Laboratory by aiming 20.35 GeV positrons and electrons at a thin silicon crystal bent to a radius of R = 0.15 m, exploiting the quasimosaic effect. For electrons, two relatively faint quasichanneling peaks were observed, while for positrons, seven quasichanneling peaks were clearly identified.

OriginalsprogEngelsk
Artikelnummer024801
TidsskriftPhysical Review Letters
Vol/bind119
Nummer2
Antal sider5
ISSN0031-9007
DOI
StatusUdgivet - 13 jul. 2017

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