Escaping Electron from Intense Laser-Solid Interactions as a Function of Laser Spot Size

dc.contributor.authorRusby, Dean
dc.contributor.authorNeely, David
dc.date.accessioned2017-11-27T13:45:28Z
dc.date.available2017-11-27T13:45:28Z
dc.date.issued2017
dc.description.abstractA high powered laser was defocused to observe the effect that this has on the escaping electron population. The data was recorded on Image plate and saved as a .Fit file. Analysis of the diagnostic was conducted using GEANT4 and PIC simulations regarding the self-focusing of the laser on the front surface were also done. Here is the abstract: The interaction of a high-intensity laser with a solid target produces a high-energy distribution of electrons that pass into the target. These electrons reach the rear surface of the target that creates strong electric potentials that restrict the escape of many of the electrons. The measurement of the angle, flux and spectra of the electrons that do escape is able to give insights to the initial interaction. Here, the escaping electrons have been measured from interactions with intensities from 〖10〗^(17-20) W/cm2, where the intensity has been reduced by increasing the size of the focal spot. A curved diagnostic with multiple layers of differentially filtered image plate measures the escaping electrons from the target. An increase in electron flux is observed at an intensity of $ $ which corresponds to a defocus of 100 µm. The peak temperature of the electron distribution is also calculated and found to be relatively constant as a function of laser spot size.en_GB
dc.identifier.urihttp://purl.org/net/edata/handle/edata/731
dc.identifier.urihttp://dx.doi.org/10.5286/edata/709
dc.language.isoenen_GB
dc.relation.isreferencedbyhttps://doi.org/10.1051/epjconf/201816702001
dc.rightsCreative Commons Attribution 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subject.otherphysicsen_GB
dc.subject.otherPlasma Physicsen_GB
dc.subject.otherHot electronsen_GB
dc.subject.otherElectron Angular Distributionen_GB
dc.subject.otherHigh intensity laseren_GB
dc.titleEscaping Electron from Intense Laser-Solid Interactions as a Function of Laser Spot Sizeen_GB
dc.typeCollectionen_GB
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