D
D. H. Kaplan
Researcher at General Atomics
Publications - 20
Citations - 689
D. H. Kaplan is an academic researcher from General Atomics. The author has contributed to research in topics: Tokamak & DIII-D. The author has an hindex of 14, co-authored 20 publications receiving 632 citations.
Papers
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Journal ArticleDOI
Advances in understanding quiescent H-mode plasmas in DIII-D
K. H. Burrell,W.P. West,E. J. Doyle,Max E Austin,T.A. Casper,P. Gohil,C. M. Greenfield,R. J. Groebner,A.W. Hyatt,R. J. Jayakumar,D. H. Kaplan,L.L. Lao,Anthony Leonard,M. A. Makowski,George McKee,T.H. Osborne,P. B. Snyder,W. M. Solomon,Daniel Thomas,T. L. Rhodes,E. J. Strait,M. R. Wade,G. Wang,Lei Zeng +23 more
TL;DR: In this article, the authors used the peeling-ballooning modes model of edge magnetohydrodynamic stability as a working hypothesis to organize the data; several predictions of this theory are consistent with the experimental results.
Journal ArticleDOI
Measurement of the Dα spectrum produced by fast ions in DIII-D
TL;DR: In this article, a two channel charge-coupled device based diagnostic was built to measure the fast-ion velocity distribution and spatial profile under a wide variety of operating conditions.
Journal ArticleDOI
Active spectroscopic measurements of the bulk deuterium properties in the DIII-D tokamak (invited).
Brian Grierson,K. H. Burrell,Colin Chrystal,R. J. Groebner,D. H. Kaplan,William Heidbrink,J. M. Muñoz Burgos,N. A. Pablant,W. M. Solomon,M. A. Van Zeeland +9 more
TL;DR: The neutral-beam induced D(α) emission spectrum contains a wealth of information such as deuterium ion temperature, toroidal rotation, density, beam emission intensity, beam neutral density, and local magnetic field strength magnitude from the Stark-split beam emission spectrum.
Journal ArticleDOI
Edge radial electric field structure in quiescent H-mode plasmas in the DIII-D tokamak
K. H. Burrell,W.P. West,E. J. Doyle,Max E Austin,J.S. deGrassie,P. Gohil,C. M. Greenfield,R. J. Groebner,R. J. Jayakumar,D. H. Kaplan,L.L. Lao,Anthony Leonard,M. A. Makowski,George McKee,W. M. Solomon,Daniel Thomas,T. L. Rhodes,M. R. Wade,G. Wang,J.G. Watkins,Lei Zeng +20 more
TL;DR: In this article, the effect of edge ion orbit loss on the creation and sustainment of the quiescent H-mode (QH-mode) has been investigated, where the edge ion profiles and the edge radial electric field are obtained by sweeping the edge plasma slowly past the view points of the charge exchange spectroscopy system.
Journal ArticleDOI
Improved charge-coupled device detectors for high-speed, charge exchange spectroscopy studies on the DIII-D tokamak
TL;DR: In this paper, the authors replaced the intensified photodiode array detectors on the central portion of the DIII-D charge exchange spectroscopy system with advanced charge-coupled device (CCD) detectors mounted on faster (f/4.7) Czerny-Turner spectrometers equipped with toroidal mirrors.