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Title: Superradiant Spin-Flip Radiative Emission of a Spin-Polarized Free-Electron Beam

Abstract

Radiative emission from the magnetic moments of the spins of an electron beam has never been observed directly, because it is fundamentally much weaker than the electric charge emission. We show that the detectivity of spin-flip and combined spin-flip-cyclotron-resonance-emission radiation can be substantially enhanced by operating with ultrashort spin-polarized electron beam bunches under conditions of superradiant (coherent) emission. The proposed superradiant spin-flip radiative emission scheme can be used for noninvasive diagnostics of polarized electron or positron beams. Such beams are of relevance in important scattering experiments off nucleons in nuclear physics and off magnetic targets in condensed matter physics.

Authors:
 [1]
  1. Faculty of Engineering, Department of Physical Electronics, Tel-Aviv University, Ramat-Aviv 69978, Tel-Aviv (Israel)
Publication Date:
OSTI Identifier:
20777119
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review Letters; Journal Volume: 96; Journal Issue: 12; Other Information: DOI: 10.1103/PhysRevLett.96.124801; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; BEAM BUNCHING; CYCLOTRON RESONANCE; ELECTRIC CHARGES; ELECTRODYNAMICS; ELECTRON BEAMS; ELECTRONS; MAGNETIC MOMENTS; NUCLEONS; POSITRON BEAMS; SCATTERING; SPIN; SPIN FLIP; SPIN ORIENTATION; SUPERRADIANCE

Citation Formats

Gover, A. Superradiant Spin-Flip Radiative Emission of a Spin-Polarized Free-Electron Beam. United States: N. p., 2006. Web. doi:10.1103/PhysRevLett.96.124801.
Gover, A. Superradiant Spin-Flip Radiative Emission of a Spin-Polarized Free-Electron Beam. United States. doi:10.1103/PhysRevLett.96.124801.
Gover, A. Fri . "Superradiant Spin-Flip Radiative Emission of a Spin-Polarized Free-Electron Beam". United States. doi:10.1103/PhysRevLett.96.124801.
@article{osti_20777119,
title = {Superradiant Spin-Flip Radiative Emission of a Spin-Polarized Free-Electron Beam},
author = {Gover, A.},
abstractNote = {Radiative emission from the magnetic moments of the spins of an electron beam has never been observed directly, because it is fundamentally much weaker than the electric charge emission. We show that the detectivity of spin-flip and combined spin-flip-cyclotron-resonance-emission radiation can be substantially enhanced by operating with ultrashort spin-polarized electron beam bunches under conditions of superradiant (coherent) emission. The proposed superradiant spin-flip radiative emission scheme can be used for noninvasive diagnostics of polarized electron or positron beams. Such beams are of relevance in important scattering experiments off nucleons in nuclear physics and off magnetic targets in condensed matter physics.},
doi = {10.1103/PhysRevLett.96.124801},
journal = {Physical Review Letters},
number = 12,
volume = 96,
place = {United States},
year = {Fri Mar 31 00:00:00 EST 2006},
month = {Fri Mar 31 00:00:00 EST 2006}
}