Kinetic study of boundary plasma in COMPASS and COMPAS-U tokamaks
Project ID:GA20-28161S
Provider:Czech Science Foundation
Period:Jan 01, 2020 - Dec 31, 2022
Recipient -- coordinator:Institute of Plasma Physics, Czech Academy of Sciences, Prague -- D. Tskhakaya
Co-recepient(s) / PI(s):Forschungszentrum Jlich GmbH -- A. Kirschner
Co-investigators from IPPJ. Adámek, I. Borodkina, R. Dejarnac, M. Dimitrova, O. Grover, K. Hromasová, M. Komm, J. Horáček, M. Peterka, A. Podolník, J. Seidl

Aims of the project: The understanding of boundary plasma properties represents one of the hottest topics in magnetic-confinement fusion research. Common tools used for this study represent numerical fluid codes. These models can not account for kinetic effects in a self-consistent manner. As it has been demonstrated in recent years, such effects can not be neglected and frequently, they even define the main properties of the boundary plasma. The aim of the proposed project is to develop a fully kinetic model of COMPASS and COMPASS-U tokamak scrape-off layers (SOLs) that will enable self-consistent study of their properties. The newly developed kinetic model will be used to explain different experimental observations made at COMPASS, as well as to perform predictive modeling of the COMPASS-U SOL. The obtained results will help in better understanding of different processes taking place in the tokamak SOL and to optimize plasma discharges at COMPASS-U tokamak. Therefore, the performed study will directly contribute to the development of next generation magnetic-confinement fusion devices.

Results:

Adámek J., Cavalier J., Tskhakaya D., Csillag B., Cinnirella L., Lips J., Lopez-Rodriguez D., Sosa D., Medina D., Vondráček P., Kripner L., Komm M., Šos M., Lindl H.: Temporal characteristics of ELMs on the COMPASS divertor. Nuclear Fusion 63 [8] (2023) č. článku 086009. [ Abstract ] [ Link ]

Horáček J., Tskhakaya D., Cavalier J., Adámek J., Mana A. C., Frassinetti L., Beltrami A., Lukeš S., Aleiferis S., Matthews G., Komm M., Bílková P.: ELM temperature in JET and COMPASS tokamak divertors. Nuclear Fusion 63 [5] (2023) č. článku 056007. [ Abstract ] [ Link ]

Komm M., Faitsch M., Henderson S., Bernert M., Brida D., Février O., Järvinen A., Silvagni D., Tskhakaya D.: Mitigation of divertor edge localised mode power loading by impurity seeding. Nuclear Fusion 63 [12] (2023) č. článku 126018. [ Abstract ] [ Link ]

Tskhakaya D.: Implementation of dressed cross-section model into the BIT1 code. European Physical Journal D 77 [7] (2023) č. článku 135. [ Abstract ] [ Link ]

Adámek J., Artola F. J., Loarte A., Matveeva E., Cavalier J., Pitts R.A., Roccella R., Lehnen M., Havlíček J., Hron M., Pánek R.: Current density limitation during disruptions due to plasma-sheaths. Nuclear Fusion 62 [8] (2022) č. článku 086034. [ Abstract ] [ Link ]

Komm M., Adámek J., Cavalier J., Brotánková J., Grover O., Hečko J., Horáček J., Matějíček J., Peterka M., Podolník A., Seidl J., Hron M., Pánek R.: On the applicability of three and four parameter fits for analysis of swept embedded Langmuir probes in magnetised plasma. Nuclear Fusion 62 [9] (2022) č. článku 096021. [ Abstract ] [ Link ]

Adámek J., Cipciar A., Devitre A., Horáček J., Cavalier J., Komm M., Krbec J., Tichý M., Trunec D., Böhm P., Pánek R.: Ion temperature measurements in the tokamak scrape-off layer with high temporal resolution. Nuclear Fusion 61 [3] (2021) č. článku 036023. [ Abstract ] [ Link ]

Tskhakaya D., Adámek J., Dimitrova M., Hromasová K., Seidl J., Šos M., Vondráček P.: Kinetic model of the COMPASS tokamak SOL. Nuclear Materials and Energy 26 [March] (2021) č. článku 100893. E. [ Abstract ] [ Link ]

Horáček J., Cecrdle J., Tskhakaya D., Dejarnac R., Schwartz J., Komm M., Cavalier J., Adámek J., Lukeš S., Veselovský V., Varju J., Bartoň P., Entler S., Gasparyan Y., Gauthier E., Gerardin J., Hromádka J., Hron M., Iafrati M., Imríšek M., Jeřáb M., Kovařík K., Mazzitelli G., Naydenkova D., van Oost G., Pánek R., Prishvitsin A., Seidl J., Šesták D., Tomeš M., Vasina Y., Vertkov A., Vondráček P., Weinzettl V.: Predictive modelling of liquid metal divertor: From COMPASS tokamak towards Upgrade. Physica Scripta 96 [12] (2021) č. článku ac1dc9. [ Abstract ] [ Link ]

Giacomin M., Stagni R., Ricci P., Boedo J. A., Horáček J., Reimerdes H., Tsui C.K.: Theory-based scaling laws of near and far scrape-off layer widths in single-null L-mode discharges. Nuclear Fusion 61 [7] (2021) č. článku 076002. [ Abstract ] [ Link ]

Horáček J., Dejarnac R., Cecrdle J., Tskhakaya D., Vertkov A., Cavalier J., Vondráček P., Jeřáb M., Bartoň P., Van Oost G., Hron M., Weinzettl V., Šesták D., Lukeš S., Adámek J., Prishvitsin A., Iafratti M., Gasparyan A.A., Vasina Y., Naydenkova D., Seidl J., Gauthier E., Mazzitelli G., Komm M., Gerardin J., Varju J., Tomeš M., Entler S., Hromádka J., Pánek R.: Modeling of COMPASS tokamak divertor liquid metal experiments. Nuclear Materials and Energy 25 [December] (2020) č. článku 100860. [ Abstract ] [ Link ]

Dejarnac R., Horáček J., Hron M., Jeřáb M., Adámek J., Atikukke S., Bartoň P., Cavalier J., Cecrdle J., Dimitrova M., Gauthier E., Iafrati M., Imríšek M., Marin Roldan A., Mazzitelli G., Naydenkova D., Prishvitcyn A., Tomeš M., Tskhakaya D., Van Oost G., Varju J., Veis P., Vertkov A., Vondráček P., Weinzettl V.: Overview of power exhaust experiments in the COMPASS divertor with liquid metals. Nuclear Materials and Energy 25 [December] (2020) č. článku 100801. [ Abstract ] [ Link ]

Adámek J., Tskhakaya D., Devitre A., Cavalier J., Horáček J., Komm M., Šos M., Bílková P., Böhm P., Seidl J., Weinzettl V., Vondráček P., Markovič T., Hron M., Pánek R.: On the transport of edge localized mode filaments in the tokamak scrape-off layer. Nuclear Fusion 60 [9] (2020) č. článku 096014. [ Abstract ] [ Link ]

Dimitrova M., Popov Tsv.K., Kovacic J., Dejarnac R., Gunn J. P., Ivanova P., Imríšek M., Stöckel J., Vondráček P., Hron M., Pánek R.: Impact of impurity seeding on the electron energy distribution function in the COMPASS divertor region. Plasma Physics and Controlled Fusion 62 [12] (2020) č. článku 125015. [ Abstract ] [ Link ]