Resonant influence of a longitudinal hypersonic field on the radiation from channeled electrons

L. Sh Grigoryan, A. R. Mkrtchyan, A. H. Mkrtchyan, H. F. Khachatryan, H. Prade, W. Wagner, M. A. Piestrup

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

The wave function of a planar/axially channeled electron with energy 10 MeV≤E≪1 GeV under the influence of a longitudinal hypersonic wave excited in a single crystal is calculated. Conditions for the resonant influence of the hypersonic wave on the quantum state of the channeled electron are deduced. Expressions for the wave function that are applicable in the case of resonance are obtained. Angular and spectral distributions of the radiation intensity from the planar/axially channeled electron are also calculated. The possibility of significant amplification of channeling radiation by a hypersonic wave is substantiated. It is found that the hypersound can excite inverse radiative transitions through which the transversal energy of the channeled electron is increased. These transitions have a resonant nature and can lead to a considerable intensification of the electron channeling radiation. In the case of axial channeling, the resonance radiation is sustained also by direct radiative transitions of the electron.

Original languageEnglish
Pages (from-to)184-194
Number of pages11
JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume173
Issue number1
DOIs
Publication statusPublished - 1 Jan 2001
Externally publishedYes

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hypersonics
Hypersonic aerodynamics
Radiation
Electrons
radiation
electrons
Wave functions
Electron transitions
wave functions
electron radiation
resonance fluorescence
radiant flux density
angular distribution
Amplification
Single crystals
energy
single crystals

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

Cite this

Resonant influence of a longitudinal hypersonic field on the radiation from channeled electrons. / Grigoryan, L. Sh; Mkrtchyan, A. R.; Mkrtchyan, A. H.; Khachatryan, H. F.; Prade, H.; Wagner, W.; Piestrup, M. A.

In: Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, Vol. 173, No. 1, 01.01.2001, p. 184-194.

Research output: Contribution to journalArticle

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AU - Wagner, W.

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AB - The wave function of a planar/axially channeled electron with energy 10 MeV≤E≪1 GeV under the influence of a longitudinal hypersonic wave excited in a single crystal is calculated. Conditions for the resonant influence of the hypersonic wave on the quantum state of the channeled electron are deduced. Expressions for the wave function that are applicable in the case of resonance are obtained. Angular and spectral distributions of the radiation intensity from the planar/axially channeled electron are also calculated. The possibility of significant amplification of channeling radiation by a hypersonic wave is substantiated. It is found that the hypersound can excite inverse radiative transitions through which the transversal energy of the channeled electron is increased. These transitions have a resonant nature and can lead to a considerable intensification of the electron channeling radiation. In the case of axial channeling, the resonance radiation is sustained also by direct radiative transitions of the electron.

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