Near-3-MeV protons from target-normal-sheath-acceleration femtosecond laser irradiating advanced targets

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F19%3A00508841" target="_blank" >RIV/61389005:_____/19:00508841 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1002/ctpp.201800127" target="_blank" >https://doi.org/10.1002/ctpp.201800127</a>
DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Near-3-MeV protons from target-normal-sheath-acceleration femtosecond laser irradiating advanced targets
Original language description
Advanced targets based on graphene oxide and gold thin film were irradiated at high laser intensity (10(18)-10(19) W/cm(2)) with 50-fs laser pulses and high contrast (10(8)) to investigate ion acceleration in the target-normal-sheath-acceleration regime. Time-of-flight technique was employed with SiC semiconductor detectors and ion collectors in order to measure the ion kinetic energy and to control the properties of the generated plasma. It was found that, at the optimized laser focus position with respect to the target, maximum proton acceleration up to about 3 MeV energy and low angular divergence could be generated. The high proton energy is explained as due to the high electrical and thermal conductivity of the reduced graphene oxide structure. Dependence of the maximum proton energy on the target focal position and thickness is presented and discussed.
Czech name
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Czech description
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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