S
S.G. Lee
Publications - 17
Citations - 320
S.G. Lee is an academic researcher. The author has contributed to research in topics: Spectrometer & Tokamak. The author has an hindex of 6, co-authored 15 publications receiving 296 citations.
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Journal ArticleDOI
Spatially resolved high resolution x-ray spectroscopy for magnetically confined fusion plasmas (invited)
A. Ince-Cushman,J. E. Rice,Manfred Bitter,Matthew Reinke,K. W. Hill,M. F. Gu,E. F. Eikenberry,Ch. Broennimann,S. D. Scott,Yuri Podpaly,S.G. Lee,E.S. Marmar +11 more
TL;DR: A spatially resolving high resolution x-ray crystal spectrometer has been built and installed on the Alcator C-Mod tokamak and can be inverted to infer profiles of impurity emissivity, velocity, and temperature.
Journal ArticleDOI
Imaging x-ray crystal spectrometer on EAST
Yuejiang Shi,Fudi Wang,Baonian Wan,Manfred Bitter,S.G. Lee,J. G. Bak,Kennith Hill,Jia Fu,Yingying Li,Wei Zhang,Ang Ti,Bili Ling +11 more
TL;DR: In this article, a high-resolution imaging x-ray crystal spectrometer is described for implementation on the EAST tokamak to provide spatially and temporally resolved data on the ion temperature, electron temperature and poloidal plasma rotation.
Journal ArticleDOI
A spatially resolving x-ray crystal spectrometer for measurement of ion-temperature and rotation-velocity profiles on the Alcator C-Mod tokamak.
K. W. Hill,Manfred Bitter,S. D. Scott,A. Ince-Cushman,Matthew Reinke,J. E. Rice,P. Beiersdorfer,M. F. Gu,S.G. Lee,Ch. Broennimann,E. F. Eikenberry +10 more
TL;DR: A new spatially resolving x-ray crystal spectrometer capable of measuring continuous spatial profiles of high resolution spectra of He-like and H-like Ar K alpha lines with good spatial and temporal resolutions has been installed on the Alcator C-Mod tokamak.
Journal ArticleDOI
Observation of Cocurrent Toroidal Rotation in the EAST Tokamak with Lower-Hybrid Current Drive
Yuejiang Shi,Guosheng Xu,Fudi Wang,Mao Wang,Jia Fu,Yingying Li,Wei Zhang,Jiafeng Chang,Bo Lv,Jinping Qian,Jiafang Shan,Fukun Liu,Siye Ding,Baonian Wan,S.G. Lee,Manfred Bitter,K. W. Hill +16 more
TL;DR: Lower-hybrid waves have been shown to induce a cocurrent change in toroidal rotation of up to 40 km/s in the L-mode plasma core region and 20km/S in the edge of the EAST tokamak.
Journal ArticleDOI
Spatially Resolved Measurements of Temperature and Rotation Velocity from the Tangential Imaging X-ray Crystal Spectrometer on the EAST Tokamak
Fudi Wang,Yuejiang Shi,Wei Zhang,Jia Fu,Yingying Li,Jingcui Xu,Yongcai Shen,Bo Lu,Jizong Zhang,Baonian Wan,S.G. Lee,Manfred Bitter,K. W. Hill +12 more
TL;DR: In this article, a high-resolution tangential imaging X-ray crystal spectrometer (TXCS) is described for implementation on the Experimental Advanced Superconducting Tokamak (EAST) to provide spatially and temporally resolved data on the toroidal plasma rotation velocity and on the ion and the electron temperature.