Channeling, Bremsstrahlung and Pair Creation in Single Crystals

  • Allan H. Sørensen
Part of the NATO ASI Series book series (NSSB, volume 255)


On the following pages, I shall describe various directional effects associated with the penetration of energetic charged particles through single crystals in directions close to low-index crystallographic directions, that is, close to low-index axes and planes. In particular, I shall focus on the special case of channeling: In channeling, the charged particles are so closely aligned with, say, an axis that their motion is completely governed by many correlated collisions with lattice atoms and their flux is prevented from being uniform in the space transverse to the considered crystal direction. In the interaction with a given atomic row or string, a projectile deflects as off a continuum string obtained by smearing the atomic charges uniformly along the string direction (\(\overset{\wedge }{\mathop{z}}\,\)). The interaction with the crystal is, in lowest approximation, through a z-independent continuum potential.


Rest Frame Radiation Spectrum Transverse Energy Target Atom Transverse Motion 
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  1. 1.
    J. Augustin, S. Graf, W. Greiner and B. Müller, these proceedings.Google Scholar
  2. 2.
    D. S. Gemmel, “Channeling and Related Effects in the Motion of Charged Particles through Crystals”, Rev. Mod. Phys. 46 (1974) 129.ADSCrossRefGoogle Scholar
  3. 3.
    L. C. Feldman, J. W. Mayer, and S. T. Picraux, Materials Analysis by Ion Channeling, Academic Press, New York (1982).Google Scholar
  4. 4.
    J. U. Andersen, E. Bonderup and R. H. Pantell, “Channeling Radiation”, Ann. Rev. Nucl. Part. Sci. 33 (1983) 453.ADSCrossRefGoogle Scholar
  5. 5.
    A. H. Sørensen and E. Uggerhoj, “Channeling and Channeling Radiation”, Nature 325 (1987) 311.ADSCrossRefGoogle Scholar
  6. 6.
    A. H. Sørensen and E. Uggerhoj, “Channeling, Radiation and Applications”, Nucl. Sci. Appl. 3 (1989) 147.Google Scholar
  7. 7.
    R. A. Carrigan, Jr., and J. A. Ellison, eds. Relativistic Channeling, NATO ASI Series B 165, Plenum, New York (1987).Google Scholar
  8. 8.
    J. D. Jackson, Classical Electrodynamics, Wiley Press, New York, (1975).MATHGoogle Scholar
  9. 9.
    J. Lindhard, “Quantum Radiation Spectra of Relativistic Particles Derived by Correspondence Principle” (submitted to Phys. Rev.).Google Scholar
  10. 10.
    V. N. Baier, V. M. Katkov and V. M. Strakhovenko, Phys. Lett. A117 (1986) 251.CrossRefGoogle Scholar
  11. 11.
    R. Medenwaldt et al., Phys. Rev. Lett. 63 (1989) 2827.ADSCrossRefGoogle Scholar
  12. 12.
    J. F. Bak et al., Phys. Lett. B202 (1988) 615.Google Scholar
  13. 13.
    V. N. Baler, V. M. Katkov and V. M. Strakhovenko, Nucl. Sci. Appl. 3 (1989) 245.Google Scholar
  14. 14.
    S. P. Moller et al., “High Efficiency Bending of 450 GeV Protons Using Channeling”, (submitted to Physics Letters).Google Scholar

Copyright information

© Plenum Press, New York 1991

Authors and Affiliations

  • Allan H. Sørensen
    • 1
    • 2
  1. 1.Institute of PhysicsUniversity of AarhusAarhus CDenmark
  2. 2.Department of PhysicsDuke UniversityDurhamUSA

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