Results 131 to 140 of about 15,788,610 (233)

Testing of the Prototype Receiver for ITER ECE Diagnostic

EPJ Web of Conferences, 2017
The Electron Cyclotron Emission (ECE) diagnostic system in ITER provides essential information for plasma control and for evaluating the plasma performance.
Danani S., Austin M. E., Brookman M.W., Pandya H. K. B., Kumar Vinay   +4 more
doaj   +1 more source

Saturation of fishbone instability through zonal flows driven by energetic particle transport in tokamak plasmas

Nuclear Fusion
Gyrokinetic and kinetic-MHD simulations are performed for the fishbone instability in the DIII-D discharge #178631, chosen for validation of first-principles simulations to predict the energetic particle (EP) transport in an ITER pre-fusion baseline ...
G. Brochard, C. Liu, X. Wei, W. Heidbrink, Z. Lin, M.V. Falessi, F. Zonca, Z. Qiu, N. Gorelenkov, C. Chrystal, X. Du, J. Bao, A.R. Polevoi, M. Schneider, S.H. Kim, S.D. Pinches, P. Liu, J.H. Nicolau, H. Lütjens, the ISEP group   +19 more
doaj   +1 more source

Reconstruction and interpretation of ionization asymmetry in magnetic confinement via synthetic diagnostics

Nuclear Fusion
Strong poloidal refueling asymmetry in the DIII-D tokamak is inferred from line radiation measurements. Synthetic diagnostics in neutral transport modeling coupled to gyrokinetic simulations illuminate implications for the plasma flow profile in the ...
G.J. Wilkie, F. Laggner, R. Hager, A. Rosenthal, S.-H. Ku, R.M. Churchill, L. Horvath, C.S. Chang, A. Bortolon   +8 more
doaj   +1 more source

First high-power helicon results from DIII-D

Nuclear Fusion
More than 0.6 MW of rf power at 476 MHz has been coupled to DIII-D plasmas by launching helicon (whistler) waves with a traveling-wave antenna (comb-line) in the fast-wave polarization (Van Compernolle et al 2021 Nucl. Fusion 61 116034) which resulted in
R.I. Pinsker, B. Van Compernolle, S.X. Tang, J.B. Lestz, C.P. Moeller, C.C. Petty, A. Dupuy, J.P. Squire, A.M. Garofalo, M. Porkolab, J.C. Rost, S.G. Baek, A. Nagy, S. Chowdhury, N.A. Crocker, G.H. Degrandchamp, A.G. McLean, K.R. Gage, A. Marinoni, E.H. Martin, G. Ronchi, the DIII-D Team   +21 more
doaj   +1 more source

Radiation modeling and experimental validation of sub-cyclotron frequency microwave synchrotron radiation as a diagnostic tool for runaway electrons in present and future tokamaks

Nuclear Fusion
The microwave synchrotron radiation in the sub-cyclotron frequency region has been systematically validated as a diagnostic method for runaway electrons (>1 MeV) with radiation modeling and experiments on the DIII-D tokamak.
Guanying Yu, Gerrit Kramer, Deyong Liu, Claudio Marini, Andrey Lvovskiy, Xiaoliang Li, Xinhang Xu, Ruifeng Xie, Zeyu Li, Max Austin, Yilun Zhu, N.C. Luhmann Jr   +11 more
doaj   +1 more source

Fast Ion Loss Diagnostics on DIII-D

, 2009
New fluctuation and fast ion diagnostics on DIII-D have resulted in the first experimental measurements of the spatial structure of Alfvén eigenmodes (AEs) and their impact on the radial profile of confined beam ions. This paper describes fast ion loss diagnostics designed to help understand how AE's and other instabilities perturb the fast ion orbits ...
Fisher, RK, Boivin, RL, Garcia-Munoz, M, Heidbrink, WW, Pace, DC, Van Zeeland, MA, Zhu, YB   +6 more
openaire   +2 more sources

Coincidence anomaly detection for unsupervised locating of edge localized modes in the DIII-D tokamak dataset

Machine Learning: Science and Technology
Using supervised learning to train a machine learning model to predict an on-coming edge localized mode (ELM) requires a large number of labeled samples.
Finn H O’Shea, Semin Joung, David R Smith, Daniel Ratner, Ryan Coffee   +4 more
doaj   +1 more source

Power and isotope effects in the ITER baseline scenario with tungsten and tungsten-equivalent radiators in DIII-D

Nuclear Fusion
Experiments in DIII-D document the ITER Baseline Scenario (IBS) at q _95 ∼ 3 and P _IN / P _LH ∼ 1–2, in both deuterium and hydrogen utilizing Kr and Xe as Tungsten-equivalent radiators.
A.C.C. Sips, F. Turco, C.M. Greenfield, L. Schmitz, T. Luce, T. Odstrčil, A. McLean, I. Bykov, A. Hyatt, T. Osborne   +9 more
doaj   +1 more source

Experimental demonstration of real-time electron temperature profile control in DIII-D

Nuclear Fusion
Future tokamak reactor operation will require the ability to maintain a given plasma scenario for extended periods of time. This will necessitate the capability to react to changes in the plasma state and return the plasma to the target scenario; the ...
S. Morosohk, K. Erickson, E. Schuster
doaj   +1 more source

Targeting the Zika virus envelope domains I and III as a recombinant vaccine protects mice from lethal challenge. [PDF]

NPJ Vaccines
Dussupt V, Jensen JL, Rosado AP, Donofrio M, Pflugheber J, Mendez-Rivera L, Sankhala RS, Chen WH, Slike BM, Schmid A, Tran U, Metzger L, Peterson CE, Pinto AK, Vasan S, Collins ND, Farmer A, Michael NL, Joyce MG, Brien JD, Krebs SJ.   +20 more
europepmc   +1 more source