Electron channeling radiation experiments at very high electron bunch charges

R. A. Carrigan, Jr., J. Freudenberger, S. Fritzler, H. Genz, A. Richter, A. Ushakov, A. Zilges, and J. P. F. Sellschop
Phys. Rev. A 68, 062901 – Published 12 December 2003
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Abstract

Plasmas offer the possibility of high acceleration gradients. An intriguing suggestion is to use the higher plasma densities possible in solids to get extremely high gradients. Although solid-state plasmas might produce high gradients they would pose daunting problems. Crystal channeling has been suggested as one mechanism to address these challenges. There is no experimental or theoretical guidance on channeling for intense electron beams. A high-density plasma in a crystal lattice could quench the channeling process. An experiment has been carried out at the Fermilab NICADD Photoinjector Laboratory to observe electron channeling radiation at high bunch charges. An electron beam with up to 8 nC per electron bunch was used to investigate the electron-crystal interaction. No evidence was found of quenching of channeling at charge densities two orders of magnitude larger than that in earlier experiments.

  • Received 6 August 2003

DOI:https://doi.org/10.1103/PhysRevA.68.062901

©2003 American Physical Society

Authors & Affiliations

R. A. Carrigan, Jr.*

  • Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA

J. Freudenberger, S. Fritzler, H. Genz, A. Richter, A. Ushakov§, and A. Zilges

  • Institut für Kernphysik, Technische Universität Darmstadt, Schlossgartenstrasse 9, D-64289 Darmstadt, Germany

J. P. F. Sellschop

  • Schonland Centre, University of the Witwatersrand, 2050 Johannesburg, South Africa

  • *Electronic address: Carrigan@fnal.gov
  • Present address: Siemens Medical Solutions, Med RVV, P. O. Box 3260, D-91050 Erlangen, Germany; electronic address: joerg.freudenberger@siemens.com
  • Present address: Laboratoire d’Optique Appliquee–ENSTA, UMR 7639, CNRS, École Polytechnique, 91761 Palaiseau, France; electronic address: sven.fritzler@ensta.fr
  • §Present address: Institut für Angewandte Physik, Johann-Wolfgang-Goethe Universität Frankfurt, Robert-Mayer-Str. 12, D-60486 Frankfurt, Germany; electronic address: ushakov@iap.uni-frankfurt.de
  • Deceased.

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Vol. 68, Iss. 6 — December 2003

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