Longitudinal and transverse cooling of relativistic electron beams in intense laser pulses

Yoffe, Samuel R.; Kravets, Yevgen; Noble, Adam; Jaroszynski, D. A.

doi:10.1088/1367-2630/17/5/053025

Cited by 44 publications

(65 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The solutions (23), (24) are consistent with those made by Joffe et al [19]. When the RR is negligible (formally τ r → 0), the function h (φ, ρ 0 ) tends to 1 and the electron motion reduces to the standard solution of the Lorentz equation in a plane wave [21].…”

Section: Analytical Model For the Radiating Electron Sourcesupporting

confidence: 85%

“…This opposite behavior is due to the stochasticity of photon emission, which becomes dominant in the full quantum regime, at the expense of the incoherent emission of multiple photons in the classical regime. These results have been confirmed by a similar study in reference [19].…”

Section: Introductionsupporting

confidence: 84%

“…We introduce an analytical model based on a kinetic approach, which confirms the main characteristics of the radiating electron source that are observed in ParticleIn-Cell (PIC) simulations. This builds upon the previous studies of the RR effect on electron beams during the interactions with a laser pulse [17][18][19], by extending to a laser-plasma interaction.…”

Section: Introductionmentioning

confidence: 72%

See 2 more Smart Citations

Radiating electron source generation in ultraintense laser-foil interactions

2016

View full text Add to dashboard Cite

A radiating electron source is shown to be created by a laser pulse (with intensity of 10 23 W/cm 2 and duration equal to 30 fs) interacting with a near-critical density plasma. It is shown that the back radiation reaction resulting from high energy synchrotron radiation tends to counteract the action of the ponderomotive force. This enhances the collective dynamics of the radiating electrons in the highest field areas, resulting in the production of a compact radiation source (containing 80% of the synchrotron radiation emission), with an energy on the order of tens of MeV over the laser pulse duration. These phenomena are investigated using a QED-particle-in-cell code, and compared with a kinetic model accounting for the radiation reaction force in the electron distribution function. The results shed new light on electron-photon sources at ultra-high laser intensities and could be tested on future laser facilities.

show abstract

Section: Analytical Model For the Radiating Electron Sourcesupporting

confidence: 85%

Section: Introductionsupporting

confidence: 84%

Section: Introductionmentioning

confidence: 72%

See 1 more Smart Citation

Radiating electron source generation in ultraintense laser-foil interactions

2016

View full text Add to dashboard Cite

show abstract

“…In the decades since its introduction it has become the dominant description of radiation reaction, and has been applied to electron dynamics [21][22][23][24][25][26][27][28], ion acceleration [29][30][31], and high-energy synchrotron radiation [32]. However, its provenance as an approximation to an unphysical equation questions its validity.…”

Section: Introductionmentioning

confidence: 99%

Role of momentum and velocity for radiating electrons

et al. 2016

Self Cite

View full text Add to dashboard Cite

This version is available at https://strathprints.strath.ac.uk/55486/ Strathprints is designed to allow users to access the research output of the University of Strathclyde. Unless otherwise explicitly stated on the manuscript, Copyright © and Moral Rights for the papers on this site are retained by the individual authors and/or other copyright owners. Please check the manuscript for details of any other licences that may have been applied. You may not engage in further distribution of the material for any profitmaking activities or any commercial gain. You may freely distribute both the url (https://strathprints.strath.ac.uk/) and the content of this paper for research or private study, educational, or not-for-profit purposes without prior permission or charge.Any correspondence concerning this service should be sent to the Strathprints administrator: strathprints@strath.ac.ukThe Strathprints institutional repository (https://strathprints.strath.ac.uk) is a digital archive of University of Strathclyde research outputs. It has been developed to disseminate open access research outputs, expose data about those outputs, and enable the management and persistent access to Strathclyde's intellectual output. Radiation reaction remains one of the most fascinating open questions in electrodynamics. The development of multi-petawatt laser facilities capable of reaching extreme intensities has leant this topic a new urgency, and it is now more important than ever to properly understand it. Two models of radiation reaction, due to Landau and Lifshitz and to Sokolov, have gained prominence, but there has been little work exploring the relation between the two. We show that in the Sokolov theory electromagnetic fields induce a Lorentz transformation between momentum and velocity, which eliminates some of the counterintuitive results of Landau-Lifshitz. In particular, the Lorentz boost in a constant electric field causes the particle to lose electrostatic potential energy more rapidly than it otherwise would, explaining the long-standing mystery of how an electron can radiate while experience no radiation reaction force. These ideas are illustrated in examples of relevance to astrophysics and laser-particle interactions, where radiation reaction effects are particularly prominent.

show abstract

“…As quantum effects become more important, classical theories overestimate the amount of radiation emitted [16,7] which is accounted for by a rescaling of the characteristic time τ → τ g(χ) in equation (1), where the quantum nonlinearity parameter χ = eh F ab F acẋbẋ c /m 2 e and we use the approximation g(χ) = (1 + 12χ + 31χ 2 + 3.7χ…”

Section: Introductionmentioning

confidence: 99%

Cooling of relativistic electron beams in intense laser pulses: Chirps and radiation

Yoffe

Noble

MacLeod

et al. 2016

Nuclear Instruments and Methods in Physics Research Section A:

View full text Add to dashboard Cite

Next-generation high-power laser facilities (such as the Extreme Light Infrastructure) will provide unprecedented field intensities, and will allow us to probe qualitatively new physical regimes for the first time. One of the important fundamental questions which will be addressed is particle dynamics when radiation reaction and quantum effects play a significant role. Classical theories of radiation reaction predict beam cooling in the interaction of a relativistic electron bunch and a high-intensity laser pulse, with final-state properties only dependent on the laser fluence. The observed quantum suppression of this cooling instead exhibits a dependence on the laser intensity directly. This offers the potential for final-state properties to be modified or even controlled by tailoring the intensity profile of the laser pulse. In addition to beam properties, quantum effects will be manifest in the emitted radiation spectra, which could be manipulated for use as radiation sources. We compare predictions made by classical, quasi-classical and stochastic theories of radiation reaction, and investigate the influence of chirped laser pulses on the observed radiation spectra.

show abstract

Longitudinal and transverse cooling of relativistic electron beams in intense laser pulses

Cited by 44 publications

References 26 publications

Radiating electron source generation in ultraintense laser-foil interactions

Radiating electron source generation in ultraintense laser-foil interactions

Role of momentum and velocity for radiating electrons

Cooling of relativistic electron beams in intense laser pulses: Chirps and radiation

Contact Info

Product

Resources

About