D
D. C. Pace
Researcher at University of California, Irvine
Publications - 6
Citations - 243
D. C. Pace is an academic researcher from University of California, Irvine. The author has contributed to research in topics: Ion & Beam (structure). The author has an hindex of 5, co-authored 6 publications receiving 220 citations.
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Journal ArticleDOI
Measurements and modeling of Alfvén eigenmode induced fast ion transport and loss in DIII-D and ASDEX Upgrade
M. A. Van Zeeland,W. W. Heidbrink,R. K. Fisher,M. Garcia Munoz,G. J. Kramer,D. C. Pace,Roscoe White,S. Aekaeslompolo,Max E Austin,J. E. Boom,I. G. J. Classen,S. da Graca,Benedikt Geiger,M.V. Gorelenkova,N. N. Gorelenkov,A.W. Hyatt,Neville C. Luhmann,M. Maraschek,George McKee,R.A. Moyer,Christopher Muscatello,Raffi Nazikian,Hyeon K. Park,S. E. Sharapov,W. Suttrop,G. Tardini,Benjamin Tobias,Y. B. Zhu,Diii-D +28 more
TL;DR: In this article, neutral beam injection into reversed magnetic shear DIII-D and ASDEX upgrade plasmas produces a variety of Alfvenic activity including toroidicity-induced Alfven eigenmodes (RSAEs) and reversed shear Alfven (RSE) during discharge current ramp phase when incomplete current penetration results in a high central safety factor and increased drive due to multiple higher order resonances.
Journal ArticleDOI
Scintillator-based diagnostic for fast ion loss measurements on DIII-D.
R. K. Fisher,D. C. Pace,M. Garcia-Munoz,W. W. Heidbrink,Christopher Muscatello,M. A. Van Zeeland,Y. B. Zhu +6 more
TL;DR: Initial DIII-D results showing prompt losses and energetic ion loss due to MHD instabilities are discussed.
Journal ArticleDOI
Convective beam ion losses due to Alfvén eigenmodes in DIII-D reversed-shear plasmas
TL;DR: In this paper, convective beam ion losses are observed at frequencies corresponding to toroidal and reversed-shear Alfven eigenmodes (RSAEs) in DIII-D.
Journal ArticleDOI
Near midplane scintillator-based fast ion loss detector on DIII-D.
X. Chen,R. K. Fisher,D. C. Pace,M. Garcia-Munoz,J. A. Chavez,William Heidbrink,M. A. Van Zeeland +6 more
TL;DR: Since fast ion losses are localized poloidally, having two FILDs at different poloidal locations allows for the study of losses over a wider range of plasma shapes and types of loss orbits.
Journal ArticleDOI
Imaging key aspects of fast ion physics in the DIII-D tokamak
M. A. Van Zeeland,J.H. Yu,W. W. Heidbrink,N.H. Brooks,K. H. Burrell,Ming-Sheng Chu,A.W. Hyatt,Christopher Muscatello,Raffi Nazikian,N. A. Pablant,D. C. Pace,W. M. Solomon,M. R. Wade +12 more
TL;DR: In this article, the authors used spectrally filtered fast imaging of broadband visible bremsstrahlung emission, a method which is capable of imaging with high resolution the structure of coherent oscillations in the core of current and next-step fusion plasma experiments.