Controlled Transport and Focusing of Laser-Accelerated Protons with Miniature Magnetic Devices

M. Schollmeier, S. Becker, M. Geißel, K. A. Flippo, A. Blažević, S. A. Gaillard, D. C. Gautier, F. Grüner, K. Harres, M. Kimmel, F. Nürnberg, P. Rambo, U. Schramm, J. Schreiber, J. Schütrumpf, J. Schwarz, N. A. Tahir, B. Atherton, D. Habs, B. M. Hegelich, and M. Roth
Phys. Rev. Lett. 101, 055004 – Published 1 August 2008

Abstract

This Letter demonstrates the transporting and focusing of laser-accelerated 14 MeV protons by permanent magnet miniature quadrupole lenses providing field gradients of up to 500T/m. The approach is highly reproducible and predictable, leading to a focal spot of (286×173)μm full width at half maximum 50 cm behind the source. It decouples the relativistic laser-proton acceleration from the beam transport, paving the way to optimize both separately. The collimation and the subsequent energy selection obtained are perfectly applicable for upcoming high-energy, high-repetition rate laser systems.

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  • Received 17 April 2008

DOI:https://doi.org/10.1103/PhysRevLett.101.055004

©2008 American Physical Society

Authors & Affiliations

M. Schollmeier1, S. Becker2, M. Geißel3, K. A. Flippo4, A. Blažević5, S. A. Gaillard4,6, D. C. Gautier4, F. Grüner2, K. Harres1, M. Kimmel3, F. Nürnberg1, P. Rambo3, U. Schramm7, J. Schreiber2, J. Schütrumpf1, J. Schwarz3, N. A. Tahir5, B. Atherton3, D. Habs2, B. M. Hegelich2,4, and M. Roth1

  • 1Institut für Kernphysik, Technische Universität Darmstadt, Schloßgartenstrasse 9, D-64289 Darmstadt, Germany
  • 2Department für Physik, Ludwig-Maximilians Universität München, Am Coulombwall 1, D-85748 Garching, Germany
  • 3Sandia National Laboratories, Albuquerque, New Mexico 87185, USA
  • 4Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
  • 5GSI—Gesellschaft für Schwerionenforschung mbH, Plasmaphysik, Planckstrasse 1, D-64291 Darmstadt, Germany
  • 6Physics Department, University of Nevada, Reno, MS220, Reno, Nevada 89557, USA
  • 7Forschungszentrum Dresden–Rossendorf, Bautzner Landstraße 128, D-01328 Dresden, Germany

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Vol. 101, Iss. 5 — 1 August 2008

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