Počet záznamů: 1
Damage threshold in pre-heated optical materials exposed to intense X-rays
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SYSNO ASEP 0582479 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Damage threshold in pre-heated optical materials exposed to intense X-rays Tvůrce(i) Medvedev, Nikita (UFP-V) ORCID
Kuglerova, Z. (CZ)
Makita, M. (DE)
Chalupský, J. (CZ)
Juha, L. (CZ)Celkový počet autorů 5 Zdroj.dok. Optical Materials Express. - : Optical Society of America - ISSN 2159-3930
Roč. 13, č. 3 (2023), s. 808-822Poč.str. 15 s. Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova X-ray ; damage threshold ; optical materials Vědní obor RIV BH - Optika, masery a lasery Obor OECD Optics (including laser optics and quantum optics) CEP LM2018114 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy GA20-08452S GA ČR - Grantová agentura ČR Způsob publikování Open access Institucionální podpora UFP-V - RVO:61389021 UT WOS 000947855600001 EID SCOPUS 85149177599 DOI 10.1364/OME.480936 Anotace Materials exposed to ultrashort intense x-ray irradiation experience various damaging conditions depending on the irradiation temperature. A pre-heated target exposed to intense x-rays plays a crucial role in numerous physical-technical systems, ranging from the heavily and repeatedly radiation-loaded optics at x-ray free-electron laser facilities to the inner-most wall of prospective inertial fusion reactors. We study the temperature dependence of damage thresholds in different classes of materials theoretically: an insulator (diamond), a semiconductor (silicon), a metal (tungsten), and an organic polymer (PMMA). The numerical techniques used here enable us to trace the evolution of both the electronic state and the atomic dynamics of the materials. It includes damage mechanisms such as thermal damage, induced by an increased irradiation temperature due to energy transfer from x-ray-excited electrons, and nonthermal phase transitions, induced by rapid interatomic potential changes due to the excitation of electrons. We demonstrate that in the pre-heated materials, the thermal damage threshold tends to stay the same or lowers with the increase of the irradiation temperature, whereas nonthermal damage thresholds may be lowered or raised, depending on the particular material and specifics of the damage kinetics. Pracoviště Ústav fyziky plazmatu Kontakt Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Rok sběru 2024 Elektronická adresa https://opg.optica.org/ome/fulltext.cfm?uri=ome-13-3-808&id=527066
Počet záznamů: 1