S
S. Raftopoulos
Researcher at Princeton Plasma Physics Laboratory
Publications - 19
Citations - 101
S. Raftopoulos is an academic researcher from Princeton Plasma Physics Laboratory. The author has contributed to research in topics: National Compact Stellarator Experiment & Electromagnetic coil. The author has an hindex of 6, co-authored 19 publications receiving 92 citations.
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Journal ArticleDOI
Progress toward commissioning and plasma operation in NSTX-U
M. Ono,J. Chrzanowski,L. Dudek,S.P. Gerhardt,P.J. Heitzenroeder,Robert Kaita,Jonathan Menard,E. Perry,T. Stevenson,R. Strykowsky,Peter Titus,A. von Halle,M. Williams,N.D. Atnafu,W. Blanchard,M. Cropper,Ahmed Diallo,David Gates,Robert Ellis,Keith Erickson,J. Hosea,R. Hatcher,S. Jurczynski,S.M. Kaye,G. Labik,J. Lawson,B.P. LeBlanc,R. Maingi,C. Neumeyer,Roger Raman,S. Raftopoulos,R. Ramakrishnan,A. L. Roquemore,S.A. Sabbagh,P. Sichta,H. Schneider,M. Smith,B. Stratton,Vlad Soukhanovskii,G. Taylor,K. Tresemer,A. Zolfaghari +41 more
TL;DR: The National Spherical Torus Experiment-Upgrade (NSTX-U) is the most powerful spherical torus facility at PPPL, Princeton USA as discussed by the authors, which is used to develop the physics basis for an ST-based Fusion Nuclear Science Facility (FNSF).
Journal ArticleDOI
Effects of large area liquid lithium limiters on spherical torus plasmas
R. Kaita,R. Majeski,M. Boaz,P. C. Efthimion,G. Gettelfinger,T.K. Gray,D. Hoffman,Stephen Jardin,H.W. Kugel,P. Marfuta,Tobin Munsat,C. Neumeyer,S. Raftopoulos,Vlad Soukhanovskii,J. Spaleta,G. Taylor,J. Timberlake,R. Woolley,Leonid E. Zakharov,Michael Finkenthal,Dan Stutman,L. F. Delgado-Aparicio,R. P. Seraydarian,G. Antar,Russ Doerner,S. C. Luckhardt,M.J. Baldwin,Robert W. Conn,Rajesh Maingi,M.M. Menon,R. Causey,D. Buchenauer,M.A. Ulrickson,B. Jones,D. Rodgers +34 more
TL;DR: The use of a large-area liquid lithium surface as a limiter has significantly improved the plasma performance in the Current Drive Experiment-Upgrade (CDX-U) at the Princeton Plasma Physics Laboratory.
Journal ArticleDOI
Diagnostics for liquid lithium experiments in CDX-U
Robert Kaita,P. C. Efthimion,D. Hoffman,B. Jones,H.W. Kugel,R. Majeski,Tobin Munsat,S. Raftopoulos,G. Taylor,J. Timberlake,Vlad Soukhanovskii,Dan Stutman,M. Iovea,Michael Finkenthal,R.P. Doerner,S. Luckhardt,Rajesh Maingi,Rion A. Causey +17 more
TL;DR: In this paper, a multilayer mirror (MLM) array was used to monitor the 13.5 nm LiIII line for core lithium concentrations, and profile data was obtained with a multichannel tangential bolometer and a multipoint Thomson scattering system configured to give enhanced edge resolution.
Journal ArticleDOI
Tritium processing and management during D-T experiments on TFTR
P.H. La Marche,James L. Anderson,C.A. Gentile,R.J. Hawryluk,J. Hosea,M. Kalish,T. A. Kozub,H. Murray,A. Nagy,S. Raftopoulos +9 more
TL;DR: In the preparation for DT operation, in the commissioning of the tritium systems and in the operation of the Nuclear Facility, several key lessons have been learned as discussed by the authors, such as the facility must take the lead in interpreting the applicable regulations and orders and then seek regulator approval.
Journal ArticleDOI
Removal of tritium from TFTR
D. Mueller,W. Blanchard,J. Collins,J. Hosea,J. Kamperschroer,A. Nagy,D.K. Owens,S. Raftopoulos,C.H. Skinner +8 more
TL;DR: The use of discharge cleaning techniques and venting to remove the tritium was investigated in this paper, which resulted in a reduction in the in-vessel inventory from 16.4 kCi at the end of 1995 operation to 7.2 kCI at the start of the 1996 experimental program.