Alfvén mode induced particle loss in LHD

Autor: Roscoe White, Kunihiro Ogawa

Publikováno v: Physics of Plasmas. 30(4):042510

Losses of beam ions due to Alfvén modes are simulated for discharges in the Large Helical Device at Toki, Japan, using a guiding center code. High frequency beam particle resonances are found for the equilibria for passing particles, providing locat

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0dba985fa13e8191d274fad7ce6a81b9
http://hdl.handle.net/10655/00013593

Collisionless losses of fast ions in the divertor tokamak test due to toroidal field ripple

Autor: Piero Agostinetti, Gustavo Granucci, Marco Cecconello, P. Vincenzi, Raffaele Albanese, Gregorio Vlad, Roscoe White, P. Mantica, M. V. Falessi, Roberto Ambrosino, M. Vallar, I. Casiraghi, Fulvio Zonca, Marco Gobbin, Gianluca Spizzo, Piero Martin

Publikováno v: Nuclear fusion (Online) 61 (2021): 116016-1–116016-13. doi:10.1088/1741-4326/ac1e08
info:cnr-pdr/source/autori:Spizzo G.; Gobbin M.; Agostinetti P.; Albanese R.; Ambrosino R.; Casiraghi I.; Cecconello M.; Falessi M.V.; Granucci G.; Mantica P.; Martin P.; Vallar M.; Vincenzi P.; Vlad G.; White R.B.; Zonca F./titolo:Collisionless losses of fast ions in the divertor tokamak test due to toroidal field ripple/doi:10.1088%2F1741-4326%2Fac1e08/rivista:Nuclear fusion (Online)/anno:2021/pagina_da:116016-1/pagina_a:116016-13/intervallo_pagine:116016-1–116016-13/volume:61

In this paper we analyze fast ion motion in the divertor tokamak test (DTT) device (Albanese et al 2017 Nucl. Fusion 57 016010). It is planned that DTT will be heated through a mix of 45 MW heating power, including 15 MW negative-ion-based neutral be

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9f383c365dc06f3849b595ec91b0ecb6
http://hdl.handle.net/11577/3460091

Particle resonances in stellarators

Autor: Stephane Ethier, Roscoe White

Publikováno v: Physics of Plasmas. 28:092503

Resonances of high energy particles in magnetic confinement devices due to electromagnetic instabilities can strongly modify the particle distribution, leading to a reduction in fusion power and even discharge termination and particle loss to the dev

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0285d1f2221c03752ade61b0c7029379
https://doi.org/10.1063/5.0060679

Modeling of the beam excited fishbone mode in EAST

Autor: Baolong Hao, Liqing Xu, Guoqiang Li, Bin Wu, Jinfang Wang, Yi Yuan, Guo Meng, East Team, Xiang Gao, Shen Wei, Roscoe White

Publikováno v: Nuclear Fusion

Many beam related instabilities have been observed in EAST. This paper reports on detailed calculations of beam driven fishbone and sawtooth instabilities using a general fishbone dispersion relation. The ideal fluid contribution and eigenfunction we

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8b12b057addc867fc26fc95fa9fc5101
https://hdl.handle.net/21.11116/0000-0003-E952-A21.11116/0000-0004-F300-921.11116/0000-0003-E954-8

Numerical investigation of alpha particle confinement under the perturbation of neoclassical tearing modes and toroidal field ripple in CFETR

Autor: Bin Wu, Qing Zang, X. J. Wang, Xiang Zhu, Guoqiang Li, Baolong Hao, Roscoe White, Yuanxi Wan, M. Q. Wu, Cfetr Physics Team, Jiangang Li, Xiang Gao, Yinxian Jie, Wei Chen, Xiaodong Lin

Publikováno v: Nuclear Fusion. 61:046035

The confinement of alpha particles in burning plasma is a key issue in fusion reactor design, including particle interaction with instabilities. This paper includes two topics: the effect of neoclassical tearing modes (NTMs) and toroidal field ripple

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e43b918822d34dc14d2374ffdb020fd6
https://doi.org/10.1088/1741-4326/abe4e8