Ablation-erosion analyses of various fusion material surfaces and developments of surface erosion monitors for notification of fusion chamber maintenance times, as an example: Visible light transparent SiC and up-conversion phosphors applied to plasma facing surface structures, useful for versatile purposes to protect and diagnose fusion chambers and so on.

0484971 - ÚFP 2018 RIV US eng C - Conference Paper (international conference)
Kasuya, K. - Motokoshi, S. - Taniguchi, S. - Nakai, M. - Tokunaga, K. - Koláček, Karel - Schmidt, Jiří - Frolov, Oleksandr - Štraus, Jaroslav - Matějíček, Jiří - Choukourov, A.
Ablation-erosion analyses of various fusion material surfaces and developments of surface erosion monitors for notification of fusion chamber maintenance times, as an example: Visible light transparent SiC and up-conversion phosphors applied to plasma facing surface structures, useful for versatile purposes to protect and diagnose fusion chambers and so on.
Proceedings of SPIE, Vol. 10254: XXI INTERNATIONAL SYMPOSIUM ON HIGH POWER LASER SYSTEMS AND APPLICATIONS 2016. Bellingham: SPIE, 2017 - (Schuocker, D.; Majer, R.; Brunnbauer, J.), č. článku 102541B. SPIE. ISBN 978-1-5106-1009-5. ISSN 0277-786X.
[International Symposium on High Power Laser Systems and Applications 2016/21./. Gmunden (AT), 05.09.2016-09.09.2016]
R&D Projects: GA ČR(CZ) GA14-29772S; GA MŠMT(CZ) LG13029
Institutional support: RVO:61389021
Keywords : Short pulse laser ablation * surface erosion analyses * tough materials * optical erosion monitor * hazardous environments including fusion chambers * up-conversion phosphor
OECD category: Optics (including laser optics and quantum optics)

Two kinds of pulsed lasers in Japan and in Czech Republic were used to irradiate various sample materials to investigate the surface erosion thresholds under very hazardous environments including nuclear fusion chambers. The first was ArF laser in ILT and the second was XUV laser in IPP. These data were combined with our former data for further applications. E.g. a surface erosion monitor was proposed for exact determination of fusion chamber maintenance time, up-conversion phosphor was proposed for measurement of thermal loading of front surfaces of armour structures, and transparent SiC was newly tested for future diagnostic and protection purposes.
Permanent Link: http://hdl.handle.net/11104/0280107