First Experiments on Reduction the Heat Load on the Divertor Plates
of the Globus-M2 Tokamak Using Nitrogen Seeding
and Their Comparison with Simulation Results
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Published:2023-12-01
Issue:12
Volume:49
Page:1327-1336
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ISSN:0367-2921
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Container-title:Физика плазмы
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language:
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Short-container-title:Fizika plazmy
Author:
Zhiltsov N. S.1, Kiselev E. O.1, Kurskiev G. S.1, Minaev V. B.1, Miroshnikov I. V.1, Molchanov P. A.2, Novokhatsky A. N.1, Petrov Yu. V.1, Rozhansky V. A.3, Sakharov N. V.1, Telnova A. Yu.1, Timokhin V. M.3, Tkachenko E. E.1, Tokarev V. A.1, Tukhmeneva E. A.1, Shchegolev P. B.1, Khromov N. A.1, Bakharev N. N.1, Vekshina E. O.3, Gusev V. K.1, Dolgova K. V.3
Affiliation:
1. Ioffe Institute, Russian Academy of Sciences 2. Peter the Great Saint Petersburg Polytechnic University 3. Peter the Great St. Petersburg Polytechnic University
Abstract
At the compact spherical Globus-M2 tokamak, a series of experiments was conducted to study theeffect of the injection of nitrogen on the discharge parameters. The experiments were carried out in dischargesin deuterium in the divertor configuration, and the auxiliary heating was performed by deuteriumneutral beam injection. During the nitrogen seeding, a substantial decrease in electron temperature near thedivertor was recorded as well as a sharp decrease of the heat flux onto the divertor plate, while the density andtemperature of the main plasma changed insignificantly. Simulations by the SOLPS-ITER showed a satisfactoryagreement with the experiment.
Publisher
The Russian Academy of Sciences
Reference20 articles.
1. Kukushkin A.S., Pacher H.D., Loarte A., Komarov V., Kotov V., Merola M., Pacher G.W. and Reiter D. // Nucl. Fusion. 2009. V. 49. № 7. P. 075008. https://doi.org/10.1088/0029-5515/49/7/075008 2. Leonard A.W. // Plasma Phys. Control. Fusion. 2018. V. 60. № 4. 044001 https://doi.org/10.1088/1361-6587/aaa7a9 3. Reimold F., Wischmeier M., Bernert M., Potzel S., Kallenbach A., Müller H.W., Sieglin B., Stroth U. and the ASDEX Upgrade Team // Nucl. Fusion. 2015. V. 55. № 3. P. 033004. https://doi.org/10.1088/0029-5515/55/3/033004 4. Komm M., Khodunov I., Cavalier J., Vondracek P., Henderson S., Seidl J., Horacek J., Naydenkova D., Ada-mek J., Bilkova P., Bohm P., Devitre A., Dimitrova M., Elmore S., Faitsch M., Hacek P., Havlicek J., Havra-nek A., Imrisek M., Krbec J., Peterka M., Panek R., Samoylov O., Sos M., Tomes M., Tomova K., Weinzettl V. and The EUROfusion MST1 Team // Nucl. Fusion. 2019. V. 59. № 10. P. 106035. https://doi.org/10.1088/1741-4326/ab34d2 5. Kallenbach A., Bernert M., Dux R., Casali L., Eich T., Giannone L., Herrmann A., McDermott R., Mlynek A., Müller H.W., Reimold F., Schweinzer J., Sertoli M., Tardini G., Treutterer W., Viezzer E., Wenninger R., Wischmeier M. and the ASDEX Upgrade Team. // Plasma Phys. Control. Fusion. 2013. V. 55. № 12. P. 124041. https://doi.org/10.1088/0741-3335/55/12/124041
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