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Journal
2015 | 60 | 2 | 233-237
Article title

Hot electron refluxing in the short intense laser pulse interactions with solid targets and its influence on K-α radiation

Content
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EN
Abstracts
EN
Fast electrons created as a result of the laser beam interaction with a solid target penetrate into the target material and initialize processes leading to the generation of the characteristic X-ray K-α radiation. Due to the strong electric field induced at the rear side of a thin target the transmitted electrons are redirected back into the target. These refluxing electrons increase the K-α radiation yield, as well as the duration of the X-ray pulse and the size of the radiation emitting area. A model describing the electron refluxing was verified via particle-in-cell simulations for non-relativistic electron energies. Using this model it was confirmed that the effect of the electron refluxing on the generated X-ray radiation depends on the target thickness and the target material. A considarable increase of the number of the emitted K-α photons is observed especially for thin targets made of low-Z materials, and for higher hot electron temperatures.
Publisher
Journal
Year
Volume
60
Issue
2
Pages
233-237
Physical description
Dates
published
1 - 6 - 2015
received
11 - 7 - 2014
accepted
14 - 11 - 2014
online
22 - 6 - 2015
References
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Document Type
Publication order reference
YADDA identifier
bwmeta1.element.-psjd-doi-10_1515_nuka-2015-0045
Identifiers
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