Incoherent bremsstrahlung in flat and bent crystals

Шульга, Н.Ф.; Сыщенко, В. В.; Tarnovsky, A. I.

doi:10.1088/1742-6596/357/1/012026

Cited by 3 publications

(1 citation statement)

References 13 publications

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“…electron in the medium or with a nucleus. Such processes require a quantum electrodynamical description [34,35] and are beyond our scope. However, the continuous interaction with the crystal oscillating Coulomb field resulting in the emission of relatively low-frequency radiation (as opposed to hard photons) is amenable to a classical description.…”

Section: Solving the Equation With Radiation Reaction For Large Symentioning

confidence: 99%

Radiation reaction on a classical charged particle: A modified form of the equation of motion

Alcaine

Llanes-Estrada

2013

Phys. Rev. E

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We present and numerically solve a modified form of the equation of motion for a charged particle under the influence of an external force, taking into account the radiation reaction. This covariant equation is integrodifferential, as Dirac-Röhrlich's, but has several technical improvements. First, the equation has the form of Newton's second law, with acceleration isolated on the left hand side and the force depending only on positions and velocities: Thus, the equation is linear in the highest derivative. Second, the total four-force is by construction perpendicular to the four-velocity. Third, if the external force vanishes for all future times, the total force and the acceleration automatically vanish at the present time. We show the advantages of this equation by solving it numerically for several examples of external force.

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Section: Solving the Equation With Radiation Reaction For Large Symentioning

confidence: 99%

Radiation reaction on a classical charged particle: A modified form of the equation of motion

Alcaine

Llanes-Estrada

2013

Phys. Rev. E

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Frequency splitting in undulator radiation from solid-state crystalline undulator

Shchagin,

Kube,

Potylitsyn

et al. 2024

J. Inst.

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The set of frequencies and angular properties of radiation emitted from a solid-state crystalline undulator based on the channeling effect are considered. High-frequency and low-frequency branches of the undulator radiation and the angular distribution of the emitted radiation are analyzed. The ranges of frequencies and angles of radiation emitted from the solid-state crystalline undulator based on the channeling effect are found. The frequency splitting and the energy threshold in the production of undulator radiation are shown and discussed.

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Free-electron-driven X-ray caustics from strained van der Waals materials

Shi¹,

Shentcis²,

Kurman³

et al. 2023

Optica

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Tunable control of X-ray waves remains an open challenge of critical importance for applications in high-resolution X-ray spectroscopy, medical imaging, and radiation therapy. Unlike in the X-ray regime, control over light waves in the visible and IR regimes is ubiquitous in a vast range of applications, and typically relies on widely available optical components. However, analogous optical elements for X-rays are usually inefficient and challenging to fabricate. Here, we propose a method for shaping X-ray waves directly at the source, using the interaction of free electrons with crystalline materials. Specifically, by inducing strain on van der Waals materials, we control their interaction with free electrons in a manner that tunes the emissions of the X-rays and forms caustic X-ray beams. The development of wave-shaping concepts like caustics generation in the X-ray spectral range could benefit from achievements in this field in the optical range and may help bypass the noted limits of current X-ray optics technology. Looking forward, shaping the interference of X-rays at the atomic scale could enable further developments in high-resolution X-ray science.

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Incoherent bremsstrahlung in flat and bent crystals

Cited by 3 publications

References 13 publications

Radiation reaction on a classical charged particle: A modified form of the equation of motion

Radiation reaction on a classical charged particle: A modified form of the equation of motion

Frequency splitting in undulator radiation from solid-state crystalline undulator

Free-electron-driven X-ray caustics from strained van der Waals materials

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