On the influence of acoustic waves on coherent bremsstrahlung in crystals

Abstract

We investigate the coherent bremsstrahlung by relativistic electrons in a single crystal excited by hypersonic vibrations. The formula for the corresponding differential cross-section is derived in the case of a sinusoidal wave. The conditions are specified under which the influence of the hypersound is essential. The case is considered in detail when the electron enters into the crystal at small angles with respect to a crystallographic axis. It is shown that in dependence of the parameters, the presence of hypersonic waves can either enhance or reduce the bremsstrahlung cross-section.

Original language	English
Pages (from-to)	99-109
Number of pages	11
Journal	Modern Physics Letters A
Volume	19
Issue number	2
DOIs	https://doi.org/10.1142/S0217732304011466
Publication status	Published - 20 Jan 2004
Externally published	Yes

Keywords

Coherent bremsstrahlung
Interaction of particles with matter
Physical effects of ultrasonics

ASJC Scopus subject areas

Physics and Astronomy(all)
Statistical and Nonlinear Physics
Mathematical Physics
Nuclear and High Energy Physics

Access to Document

10.1142/S0217732304011466

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abstract = "We investigate the coherent bremsstrahlung by relativistic electrons in a single crystal excited by hypersonic vibrations. The formula for the corresponding differential cross-section is derived in the case of a sinusoidal wave. The conditions are specified under which the influence of the hypersound is essential. The case is considered in detail when the electron enters into the crystal at small angles with respect to a crystallographic axis. It is shown that in dependence of the parameters, the presence of hypersonic waves can either enhance or reduce the bremsstrahlung cross-section.",

keywords = "Coherent bremsstrahlung, Interaction of particles with matter, Physical effects of ultrasonics",

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AU - Saharian, A. A.

AU - Mkrtchyan, A. R.

AU - Parazian, V. V.

AU - Grigoryan, L. Sh

PY - 2004/1/20

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N2 - We investigate the coherent bremsstrahlung by relativistic electrons in a single crystal excited by hypersonic vibrations. The formula for the corresponding differential cross-section is derived in the case of a sinusoidal wave. The conditions are specified under which the influence of the hypersound is essential. The case is considered in detail when the electron enters into the crystal at small angles with respect to a crystallographic axis. It is shown that in dependence of the parameters, the presence of hypersonic waves can either enhance or reduce the bremsstrahlung cross-section.

AB - We investigate the coherent bremsstrahlung by relativistic electrons in a single crystal excited by hypersonic vibrations. The formula for the corresponding differential cross-section is derived in the case of a sinusoidal wave. The conditions are specified under which the influence of the hypersound is essential. The case is considered in detail when the electron enters into the crystal at small angles with respect to a crystallographic axis. It is shown that in dependence of the parameters, the presence of hypersonic waves can either enhance or reduce the bremsstrahlung cross-section.

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KW - Interaction of particles with matter

KW - Physical effects of ultrasonics

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