Ridgers, C. P. orcid.org/0000-0002-4078-0887, Blackburn, T. G., Del Sorbo, D. et al. (8 more authors) (2017) Signatures of quantum effects on radiation reaction in laser-electron-beam collisions. Journal of Plasma Physics. 715830502. ISSN 0022-3778
Abstract
Two signatures of quantum effects on radiation reaction in the collision of a GeV electron beam with a high intensity (>3×1020Wcm-2]]>) laser pulse have been considered. We show that the decrease in the average energy of the electron beam may be used to measure the Gaunt factor for synchrotron emission. We derive an equation for the evolution of the variance in the energy of the electron beam in the quantum regime, i.e. quantum efficiency parameter . We show that the evolution of the variance may be used as a direct measure of the quantum stochasticity of the radiation reaction and determine the parameter regime where this is observable. For example, stochastic emission results in a 25% increase in the standard deviation of the energy spectrum of a GeV electron beam, 1 fs after it collides with a laser pulse of intensity 1021W cm-2. This effect should therefore be measurable using current high-intensity laser systems.
Metadata
Item Type: | Article |
---|---|
Authors/Creators: |
|
Copyright, Publisher and Additional Information: | © Cambridge University Press 2017. |
Keywords: | Intense particle beams,plasma dynamics,plasma simulation |
Dates: |
|
Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Physics (York) |
Funding Information: | Funder Grant number EPSRC EP/M018156/1 |
Depositing User: | Pure (York) |
Date Deposited: | 09 Nov 2017 14:12 |
Last Modified: | 15 Mar 2025 00:07 |
Published Version: | https://doi.org/10.1017/S0022377817000642 |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.1017/S0022377817000642 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:123757 |
Download
Filename: signatures_of_quantum_effects_on_radiation_reaction_in_laserelectronbeam_collisions.pdf
Description: signatures_of_quantum_effects_on_radiation_reaction_in_laserelectronbeam_collisions
Licence: CC-BY 2.5