Zobrazeno 1 - 10
of 65
pro vyhledávání: '"R.T. Snider"'
Publikováno v:
Review of Scientific Instruments. 68:381-384
A digital–analog integrator has been developed for use with inductive magnetic sensors in long-pulse tokamaks. Continuous compensation of input offsets is accomplished by alternating analog-to-digital convertor samples from the sensor and a dummy l
Autor:
B.W. Stallard, D.A. Content, R.J. Groebner, D.N. Hill, R. James, J.M. Lohr, T. Luce, K. Matsuda, M.J. Mayberry, C.P. Moeller, R. Prater, T.C. Simonen, R.T. Snider
Publikováno v:
Nuclear Fusion. 30:2235-2258
Using the outside launch with vertical polarization, electron cyclotron heating (ECH) experiments in DIII-D were carried out at 60 GHz at fundamental and second harmonic frequencies. The results are consistent with wave absorption theory for accessib
Autor:
R.T. Snider
Publikováno v:
Nuclear Fusion. 30:2400-2405
In highly elongated DIII-D divertor discharges, it was found that the line integrated X-ray sawtooth inversion radius scales as rinv/a = 1/q95 for a wide range of plasma parameters including low q and high beta discharges. No density or elongation de
Publikováno v:
Proceedings of 16th International Symposium on Fusion Engineering.
Magnetic diagnostics are critical for future tokamaks such as the International Thermonuclear Experimental Reactor (ITER). Existing tokamaks use inductive coils and loops as magnetic sensors. The sensors are located outside the plasma boundary but wi
Publikováno v:
Proceedings of 16th International Symposium on Fusion Engineering.
This paper reviews the design of new diagnostics and the modifications to existing diagnostics needed to carry out radiative divertor experiments in DIII-D following installation in late 1996 of a set of baffle structures that will restrict the backf
Publikováno v:
Review of Scientific Instruments. 59:883-888
Ultrasoft x‐ray diode (USXRD) arrays have been used on DIII‐D and ASDEX to study plasma edge radiation, in the photon energy range from 10 eV to 10 keV. The detectors are extremely useful and versatile due to their simplicity and compactness. Fur
Autor:
R.K. Fisher, J.R. Treglio, S.S. Wojtowicz, J.T. Scoville, J.R. Smith, J. Kim, C.L. Hsieh, T.S. Taylor, R. Hong, A.P. Colleraine, G. Bramson, L. Rottler, R.D. Stambaugh, R.W. Harvey, N. Ohyabu, R.P. Seraydarian, R.L. Silagi, J.H. Kamperschroer, E.S. Fairbanks, T. McMahon, R.W. Callis, R.L. Freeman, F.P. Blau, T.R. Angel, F.B. Marcus, W. Pfeiffer, J.F. Tooker, J.C. Wesley, K.H. Burrell, R.D. Stav, T.W. Petrie, S. Ejima, R.J. Groebner, D.O. Overskei, A.J. Lieber, J.L. Luxon, N.H. Brooks, G.L. Jahns, T.N. Todd, J. Fasolo, J.C. DeBoo, T. Ohkawa, P.I. Petersen, C.J. Armentrout, R.T. Snider, J.M. Lohr, J.R. Gilleland, D.R. Eames, D.F. Vaslow, R.P. Chase, G. Zawadzki, D.B. McColl, M.A. Mahdavi, J.M. Rawls, S.K. Wong
Publikováno v:
Nuclear Fusion. 23:536-540
Using a neutral-beam injection power of 3.4 M W, volume-averaged toroidal betas of up to βT = 4.5% have been obtained in low-toroidal-field, low-qψ, vertically elongated discharges in the Doublet III tokamak. This level of βT is above the minimum
Publikováno v:
Nuclear Fusion. 22:807-811
Interferometer measurements on Doublet III indicate that a region of high-density cold plasma exists near the inside limiter. This cold plasma region appears above a certain threshold density in the main plasma and can be more than five times the ave
Autor:
J.H. Kamperschroer, E.S. Fairbanks, R.P. Chase, H. Palmer, C. Tucker, R.T. Snider, A. Kitsunezaki, J.M. Lohr, G.L. Jahns, R.K. Fisher, C.L. Hsieh, J.R. Treglio, S.S. Wojtowicz, J.L. Luxon, R.D. Stambaugh, J. Beal, R.P. Seraydarian, H. Ohyabu, D.O. Overskei, J. Williams, J. Fasolo, A. Nerem, M. Ohtsuka, N.H. Brooks, J.R. Smith, P.I. Petersen, C. Muller, J. Kim, K. Shinya, T. Bandurraga, D.R. Eames, G. Bramson, T. McMahon, H. Lizarraga, M. Nishikawa, S.K. Wong, R.L. Freeman, T. Matsuda, H. Yokomizo, F.P. Blau, T.N. Todd, B. Seffens, S. Ejima, T.S. Taylor, A. Langhorn, A.J. Lieber, J.F. Tooker, J.C. DeBoo, R.D. Stav, K.H. Burrell, D.F. Vaslow, D.B. McColl, M. Shimada, C.J. Armentrout, F.B. Marcus, T.W. Petrie, J.C. Wesley, M.A. Mahdavi, R.W. Harvey, R.W. Callis, J.T. Scoville, B. Brown, R.J. Groebner, M. Nagami, A.P. Colleraine
Summary The first Neutral Injection System Beamline became operational on the Doublet III tokamak in September 1981. Power delivery tests and system debugging proceeded through December and initial experiments on plasma heating were started in Januar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c79512ea1f29e1e575a7856f95fb4780
https://doi.org/10.1016/b978-1-4832-8428-6.50010-2
https://doi.org/10.1016/b978-1-4832-8428-6.50010-2
Autor:
D.N. Hill, S.L. Allen, N.H. Brooks, D. Content, J.C. DeBoo, P. Gohil, G. Haas, D. Heifetz, D. Hsieh, R.A. Hulse, G.L. Jackson, L. Lao, M.A. Mahdavil, M.J. Mayberry, N. Ohyabu, D.E. Perkins, M.E. Perry, T.W. Petrie, M.E. Rensink, T. Scoville, M. Shimada, R.T. Snider, R.E. Stockdale, R.D. Wood
In SIII-D, good H-mode confinement has been obtained with up to 6 MW of neutral-beam injection (NBI). In this report we summarize the essential features of divertor operation for DIII-D H-mode plasma. Briefly, our measurements show that: Large edge d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5e03ba5d1a7d44c891e72ab3b134e51e
https://doi.org/10.2172/5181705
https://doi.org/10.2172/5181705