Academic Journal
أعرض في EDS

Observation of avalanche-like transport in Heliotron J and JT-60U plasmas

التفاصيل البيبلوغرافية
العنوان: Observation of avalanche-like transport in Heliotron J and JT-60U plasmas
المؤلفون: F. Kin, S. Inagaki, K. Nagasaki, M. Luo, K. Itoh, K. Shinohara, A. Terakado, T. Minami, S. Kado, S. Kobayashi, S. Ohshima, T. Bando, N. Oyama, M. Yoshida
المصدر: Nuclear Fusion, Vol 64, Iss 6, p 066023 (2024)
بيانات النشر: IOP Publishing, 2024.
سنة النشر: 2024
المجموعة: LCC:Nuclear and particle physics. Atomic energy. Radioactivity
مصطلحات موضوعية: stellarator/heliotron and tokamak, avalanche-like transport, profile stiffness, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
الوصف: The avalanche type of transport can induce a long-radial transport and thus can contribute to the global profile formation. In this study, we observed the heat perturbations exhibiting avalanche-like transport in the stellarator/heliotron device, Heliotron J, and the tokamak device, JT-60U. We found that the electron heat propagation in Heliotron J is mainly generated from the heating source region. The relatively high value of the Hurst exponent, which is a signature of avalanches, depends on the total heating power. On the other hand, the electron and ion heat avalanches measured in JT-60U tend to spread from the local peak of the temperature gradient and are not influenced by the heating source profiles. The contrasting features of avalanches in stellarator/heliotrons and tokamaks potentially imply the difference in the temperature profile formation, such as the presence of stiffness.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 1741-4326
0029-5515
Relation: https://doaj.org/toc/0029-5515
DOI: 10.1088/1741-4326/ad3f2d
URL الوصول: https://doaj.org/article/0d181d07eedc4a6596a71c4deaf526b3
رقم الانضمام: edsdoj.0d181d07eedc4a6596a71c4deaf526b3
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:17414326
00295515
DOI:10.1088/1741-4326/ad3f2d