X
Xi Chen
Researcher at General Atomics
Publications - 39
Citations - 541
Xi Chen is an academic researcher from General Atomics. The author has contributed to research in topics: DIII-D & Tokamak. The author has an hindex of 11, co-authored 37 publications receiving 424 citations.
Papers
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Journal ArticleDOI
Discovery of stationary operation of quiescent H-mode plasmas with net-zero neutral beam injection torque and high energy confinement on DIII-D
Keith H. Burrell,Kshitish Barada,Xi Chen,A.M. Garofalo,Richard J. Groebner,Christopher Muscatello,Tom Osborne,Clinton C. Petty,Terry Rhodes,P. B. Snyder,W. M. Solomon,Zheng Yan,Lei Zeng +12 more
TL;DR: In this paper, the edge turbulence was modified to achieve stationary, high confinement operation without edge localized mode (ELM) instabilities and with no net external torque input, which achieved an additional confinement challenge that is usually difficult at low torque.
Journal ArticleDOI
Electron cyclotron heating can drastically alter reversed shear Alfvén eigenmode activity in DIII-D through finite pressure effects
M. A. Van Zeeland,William Heidbrink,S. E. Sharapov,Donald A. Spong,A. Cappa,Xi Chen,Cami Collins,M. Garcia-Munoz,Nikolai Gorelenkov,G. J. Kramer,Philipp Lauber,Zhihong Lin,C.C. Petty +12 more
TL;DR: Van Zeeland et al. as mentioned in this paper investigated the impact of electron cyclotron heating (ECH) on neutral beam driven reversed shear Alfven eigenmode (RSAE) activity.
Journal ArticleDOI
Fast Ion Transport during Applied 3D Magnetic Perturbations on DIII-D
M. A. Van Zeeland,Nathaniel Ferraro,Brian Grierson,W. W. Heidbrink,G. J. Kramer,C.J. Lasnier,David Pace,S.L. Allen,Xi Chen,Todd Evans,M. Garcia-Munoz,Jeremy Hanson,M.J. Lanctot,L.L. Lao,W.H. Meyer,R.A. Moyer,Raffi Nazikian,D.M. Orlov,Carlos Paz-Soldan,Andreas Wingen +19 more
TL;DR: In this article, the impact of applied 3D field phase with respect to the beam injection location in determining the overall impact on prompt beam ion loss has been investigated in a variety of plasmas ranging from L-mode to resonant magnetic perturbation (RMP) suppressed H-mode discharges.
Journal ArticleDOI
Stationary QH-mode plasmas with high and wide pedestal at low rotation on DIII-D
Xi Chen,K. H. Burrell,T.H. Osborne,W.M. Solomon,Kshitish Barada,A.M. Garofalo,R. J. Groebner,Neville C. Luhmann,George McKee,Christopher Muscatello,M. Ono,C.C. Petty,Miklos Porkolab,T. L. Rhodes,J.C. Rost,P. B. Snyder,G. M. Staebler,Benjamin Tobias,Zheng Yan +18 more
TL;DR: In this paper, a stationary, quiescent H-mode regime with a wide pedestal and improved confinement at low rotation has been discovered on DIII-D with reactor relevant edge parameters and no ELMs.
Journal ArticleDOI
Grassy-ELM regime with edge resonant magnetic perturbations in fully noninductive plasmas in the DIII-D tokamak
Raffi Nazikian,C.C. Petty,Alessandro Bortolon,Xi Chen,David Eldon,Todd Evans,Brian Grierson,Nathaniel Ferraro,Shaun Haskey,M. Knolker,C.J. Lasnier,Nikolas Logan,R.A. Moyer,D.M. Orlov,T.H. Osborne,Carlos Paz-Soldan,Francesca Turco,Huiqian Wang,David Weisberg +18 more
TL;DR: In this article, a two-step pedestal was used to suppress grassy ELMs in DIII-D plasmas relevant to the ITER steady-state mission.