Radiation collimation in a thick crystalline undulator

  • Tobias Nyholm Wistisen
  • Ulrik Ingerslev UggerhøjEmail author
  • John Lundsgaard Hansen
  • Werner Lauth
  • Pascal Klag
Regular Article
Part of the following topical collections:
  1. Topical Issue: Dynamics of Systems at the Nanoscale


With the recent experimental confirmation of the existence of energetic radiation from a Small Amplitude, Small Period (SASP) crystalline undulator [T.N. Wistisen, K.K. Andersen, S. Yilmaz, R. Mikkelsen, J. Lundsgaard Hansen, U.I. Uggerhøj, W. Lauth, H. Backe, Phys. Rev. Lett. 112, 254801 (2014)], the field of specially manufactured crystals, from which specific radiation characteristics can be obtained, has evolved substantially. In this paper we confirm the existence of the crystalline undulator radiation, using electrons of energies of 855 GeV from the MAinzer MIcrotron (MAMI) in a crystal that is approximately 10 times thicker than the previous one. Furthermore, we have measured a significant increase in enhancement, in good agreement with calculations, of the undulator peak by collimation to angles smaller than the natural opening angle of the radiation emission process, 1 /γ.

Graphical abstract


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Copyright information

© EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg 2017

Authors and Affiliations

  • Tobias Nyholm Wistisen
    • 1
  • Ulrik Ingerslev Uggerhøj
    • 1
    Email author
  • John Lundsgaard Hansen
    • 1
  • Werner Lauth
    • 2
  • Pascal Klag
    • 2
  1. 1.Department of Physics and AstronomyAarhus UniversityAarhus C.Denmark
  2. 2.Institut für Kernphysik Universität MainzMainzGermany

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