Erratum: Constructive interference in the spectrum of bremsstrahlung on two amorphous targets [Phys. Rev. D 
<b>90</b>
, 116007 (2014)]

Bondarenco, M. V.; Шульга, Н.Ф.

doi:10.1103/physrevd.95.019901

Cited by 4 publications

(15 citation statements)

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“…For instance, the Landau-Pomeranchuk-Migdal suppression of the soft part of radiation spectrum from an * Electronic address: bon@kipt.kharkov.ua electron in a thick amorphous target [6,7] is known to be described by the photon formation length depending on the mean square deflection angle accumulated by the electron in the target, with θ 2 ∼ χ 2 γ −2 [8][9][10]. On the contrary, the aforementioned case of nondipole bremsstrahlung on a pair of amorphous foils [5] seems to be related only with the free photon formation length (defined in the absence of electron scattering), when θ γ −1 [4]. It may be puzzling how to reconcile this with the fact that the corresponding oscillations fully develop only when typical scattering angles overtake the inverse Lorentz factor.…”

Section: Introductionmentioning

confidence: 99%

“…, as a consequence of locality of electromagnetic energy emission in classical electrodynamics (see, e.g., [4]). At ωT /2γ χ, part r is suppressed compared to g by inverse powers of γχ, and can be neglected.…”

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confidence: 99%

“…4(a) are due to "collinear-collinear" radiation interference (interference 9 If furthermore we average over an interval of χ 1 and χ 2 so large that δχ 1,2 χ 1,2 , soft oscillations would be washed out. That is why they were not discovered in works [1][2][3][4].…”

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confidence: 99%

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Interference in spectrum of radiation from doubly scattered charged particle

Bondarenco

Шульга

2017

Phys. Rev. D

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Existence of different types of interference in the spectrum of radiation emitted by a doubly hard scattered electron is demonstrated. The spectrum develops oscillations in two regions: the hard, where the oscillations depend on the electron Lorentz factor, and the soft, where the oscillations depend on the electron scattering angles. This interference pattern owes to the presence of jetlike radiation configurations, formed by a piecewise-rectilinearly moving electron and the accompanying photon. The corresponding nondipole decomposition relation is derived. Notions describing proper field formation and interference, and presumably being applicable more generally, are discussed in detail.

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Section: Introductionmentioning

confidence: 99%

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confidence: 99%

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Interference in spectrum of radiation from doubly scattered charged particle

Bondarenco

Шульга

2017

Phys. Rev. D

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“…5. The analogous effect of small radiation enhancement for the case of electron bremsstrahlung in the gamma range in a system of two targets was studied previously both experimentally [28] and theoretically (see [29] and refs. therein).…”

Section: Resultsmentioning

confidence: 75%

Formation region effects in x-ray transition radiation from 1 to 6 GeV electrons in multilayer targets

Trofymenko

Nazhmudinov

Shchagin

et al. 2020

Nuclear Instruments and Methods in Physics Research Section B:

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The formation region effects in x-ray transition radiation have been experimentally investigated. The radiation was generated using 1-6 GeV electrons impinging on two multilayer targets with considerably different periods. The absolute yield of transition radiation was measured and the wide spectral peak in the range from 10 to 30 keV was observed. In the most part of the electron energy range the emission from the short-period radiator was expectedly suppressed, compared to the case of the long-period one. But for the electron energy of 1 GeV an opposite effect, though rather small, of the emission enhancement in the short-period radiator was observed. The conditions, under which this effect is much stronger, are derived and its possible practical value is outlined. The theory accounting for an arbitrary transversal shape of the electron beam and the finite size of the detector is developed. This theory describes rather well the experimental results.

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“…in the denominator in the rhs of (9), functions f (k) grow with k faster than exponentially [see Eq. (11)]. Therefore, in principle, series (8) diverges, though it may still serve as an asymptotic expansion in the limit nl → ∞.…”

Section: B Thick Targets: Molière's Theorymentioning

confidence: 99%

Improved separation of soft and hard components in multiple Coulomb scattering

Bondarenco

2016

Phys. Rev. D

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Evaluation of the angular distribution function of particles scattered in an amorphous medium is improved by deforming the integration path in the Fourier integral representation into the complex plane. That allows us to present the distribution function as a sum of two positive components, soft and hard, the soft component being close to a Gaussian, and the hard component vanishing in the forward direction, while including the Rutherford asymptotics and all the power corrections to it at large scattering angles. Detailed properties of those components, and their interplay at intermediate deflection angles are discussed. Comparison with the Molière theory is given.

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Erratum: Constructive interference in the spectrum of bremsstrahlung on two amorphous targets [Phys. Rev. D 90 , 116007 (2014)]

Cited by 4 publications

References 0 publications

Interference in spectrum of radiation from doubly scattered charged particle

Interference in spectrum of radiation from doubly scattered charged particle

Formation region effects in x-ray transition radiation from 1 to 6 GeV electrons in multilayer targets

Improved separation of soft and hard components in multiple Coulomb scattering

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