Počet záznamů: 1
Response of fusion plasma-facing materials to nanosecond pulses of extreme ultraviolet radiation
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SYSNO ASEP 0499585 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Response of fusion plasma-facing materials to nanosecond pulses of extreme ultraviolet radiation Tvůrce(i) Štraus, Jaroslav (UFP-V) RID
Koláček, Karel (UFP-V) RID
Schmidt, Jiří (UFP-V) RID
Frolov, Oleksandr (UFP-V) RID
Vilémová, Monika (UFP-V) RID, ORCID
Matějíček, Jiří (UFP-V) RID, ORCID
Jäger, A. (CZ)
Juha, Libor (UFP-V) ORCID
Toufarová, M. (CZ)
Choukorov, A. (CZ)
Kasuya, K. (JP)Celkový počet autorů 11 Zdroj.dok. Laser and Particle Beams. - : Cambridge University Press - ISSN 0263-0346
Roč. 36, č. 3 (2018), s. 293-307Poč.str. 15 s. Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova Interaction of XUV with matter ; plasma-facing materials ; XUV radiation resistance Vědní obor RIV BL - Fyzika plazmatu a výboje v plynech Obor OECD Fluids and plasma physics (including surface physics) CEP GA14-29772S GA ČR - Grantová agentura ČR GA14-12837S GA ČR - Grantová agentura ČR LG15013 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy LM2015087 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy LTT17015 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy Institucionální podpora UFP-V - RVO:61389021 UT WOS 000451709500003 EID SCOPUS 85052968955 DOI 10.1017/S0263034618000332 Anotace The experimental study of damage to tungsten (W), molybdenum (Mo), and silicon carbide (SiC) surfaces induced by focused extreme ultraviolet laser radiation (lambda similar to 47 nm/similar to 1.5 ns/21-40 mu J) is presented. It was found that W and Mo behaved similarly: during the first shot, the damaged area is covered by melted and re-solidified material, in which circular holes appear residua of just opened pores/bubbles, from which pressurized gas/vapors escaped. Next cracks and ruptures appear and the W has a tendency to delaminate its surface layer. Contrary, single-crystalline SiC has negligible porosity and sublimates, therefore, no escape of 'pressurized' gas and no accompanying effects take place. Moreover, SiC at sublimating temperature decomposes to elements, therefore, the smooth crater morphology can be related to local laser energy density above ablation threshold. When more shots are accumulated, in all three investigated materials, the crater depth increases non-linearly with number of these shots. The surface morphology was investigated by an atomic force microscope, the surface structure was imaged by a scanning electron microscope (SEM), and the structure below the surface was visualized by SEM directed into a trench that is milled by focused ion beam. Additionally, structural changes in SiC were revealed by Raman spectroscopy. Pracoviště Ústav fyziky plazmatu Kontakt Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Rok sběru 2019 Elektronická adresa https://www.cambridge.org/core/services/aop-cambridge-core/content/view/94EC0B3668AFF31234394BA12636C21C/S0263034618000332a.pdf/response_of_fusion_plasmafacing_materials_to_nanosecond_pulses_of_extreme_ultraviolet_radiation.pdf
Počet záznamů: 1