An interplay of various damage channels in polyethylene exposed to ultra-short XUV/X-ray pulses

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F21%3A00545323" target="_blank" >RIV/68378271:_____/21:00545323 - isvavai.cz</a>
Alternative codes found
RIV/61389021:_____/21:00579467
Result on the web
<a href="https://doi.org/10.1039/d1cp02199k" target="_blank" >https://doi.org/10.1039/d1cp02199k</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1039/d1cp02199k" target="_blank" >10.1039/d1cp02199k</a>

Result language
angličtina
Original language name
An interplay of various damage channels in polyethylene exposed to ultra-short XUV/X-ray pulses
Original language description
Polyethylene (PE) irradiated with femtosecond extreme ultraviolet or X-ray laser pulses in a single-shot damage regime is studied theoretically. The employed microscopic simulation tool XTANT-3 traces nonequilibrium electron kinetics, energy exchange between electrons and atoms, nonthermal modification of interatomic potential, and the induced atomic response. It is found that the nonthermal detachment of hydrogen atoms in bulk PE starts at the threshold deposited dose of 0.05 eV per atom. With an increase in the dose, more hydrogen atoms detach from the carbon backbone. At a dose of 0.3 eV per atom, hydrogen behaves like a liquid flowing around carbon chains. In the range of doses from 0.5 eV to 0.9 eV per atom, the electronic excitation induces formation of new carbon structures embedded in the hydrogen liquid, such as benzene-like rings. At doses above 0.9 eV per atom, the carbon subsystem also melts into liquid.n
Czech name
—
Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10303 - Particles and field physics

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
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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