Plasma Science and Fusion Center Dataverse

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11 to 20 of 3,878 Results

Local Transport Dynamics of Cold Pulses in Tokamak Plasmas Jun 25, 2025 P. Rodriguez-Fernandez , C. Angioni, A. E. White, 2025, "Local Transport Dynamics of Cold Pulses in Tokamak Plasmas", https://doi.org/10.7910/DVN/ZZP1XN, Harvard Dataverse, V5 For over two decades, our fundamental understanding of energy transport dynamics in the core of tokamak plasmas had been challenged by the striking observation of temperature perturbation reversals following the injection of cold pulses at the plasma edge. These phenomena were first discovered by Gentle et al. in 1995 and had long been suggested to...
Nonlinear Gyrokinetic Simulations of the I-mode High Confnement Regime and Comparisons with Experiment Jun 24, 2025 A. E. White, N. T. Howard, A. J. Creely, M. A. Chilenski, M. Greenwald, A. E. Hubbard, J. W. Hughes, E. Marmar, J. E. Rice, J. M. Sierchio, C. Sung, J. R. Walk, and D. G. Whyte, D. R. Mikkelsen, E. M. Edlund, C. Kung, C. Holland, J. Candy, C. C. Petty, M. L. Reinke, C. Theiler, 2025, "Nonlinear Gyrokinetic Simulations of the I-mode High Confnement Regime and Comparisons with Experiment", https://doi.org/10.7910/DVN/NWHDBB, Harvard Dataverse, V2 For the first time, nonlinear gyrokinetic simulations of I-mode plasmas are performed and compared with experiment. I-mode is a high confinement regime, featuring energy confinement similar to H-mode, but without enhanced particle and impurity particle confinement [D. G. Whyte et al., Nucl. Fusion 50, 105005 (2010)]. As a consequence of the separat...
22ja006_archival_manuscript.pdf Jun 24, 2025 - Local Transport Dynamics of Cold Pulses in Tokamak Plasmas Adobe PDF - 11.8 MB - MD5: f362c3b09d2825b505be2ea14e3169de
Database study of turbulent electron temperature fluctuation measurements at ASDEX Upgrade Jun 24, 2025 Christian Yoo, Rachel Bielajew, Garrard D. Conway, Pedro A. Molina Cabrera, Pablo Rodriguez-Fernandez, Branka Vanovac, Anne E. White, the EUROfusion MST1 Team, the ASDEX Upgrade Team, 2025, "Database study of turbulent electron temperature fluctuation measurements at ASDEX Upgrade", https://doi.org/10.7910/DVN/TATVKE, Harvard Dataverse, V15 In this work, an automated method for the analysis of data from the correlation electron cyclotron emission (CECE) diagnostic is applied to discharges in the ASDEX Upgrade (AUG) tokamak. This recently developed, automated method provides an efficient means of accurately analysing large quantities of experimental turbulence data, enabling the develo...
22ja104_archival_manuscript.pdf Jun 24, 2025 - Database study of turbulent electron temperature fluctuation measurements at ASDEX Upgrade Adobe PDF - 355.1 KB - MD5: 16b9a531f1ac7ca307dfb252ebb2281b
Qubit lattice approximation of some quantum and classical physics problems Jun 23, 2025 Soe, Min; Vahala, George; Vahala, Linda; Ram, Abhay K.; Koukoutsis, Efstratios; Hizanidis, Kyriakos, 2025, "Qubit lattice approximation of some quantum and classical physics problems", https://doi.org/10.7910/DVN/71PCSV, Harvard Dataverse, V2 It is expected that quantum computers can provide exponential speedup over classical supercomputers for the solution of certain physics problems. We have been investigating the Qubit Lattice Approximation (QLA) for classical soliton collisions, for 2D and 3D quantum turbulence, and more recently for electromagnetic wave propagation in dielectric me...
Influence of Proton Irradiation on Corrosion in Liquid Lead Jun 23, 2025 Zhou, Weiyue; Cairang, Wande; Amadeo, Paola; Woller, Kevin B.; Short, Michael P., 2025, "Influence of Proton Irradiation on Corrosion in Liquid Lead", https://doi.org/10.7910/DVN/3OGIPS, Harvard Dataverse, V24 The next-generation Gen IV nuclear reactors are designed to operate under increasingly challenging environments, aiming for higher thermal efficiency while adhering to strict physical and safety constraints. These harsh conditions, characterized by elevated temperatures and accelerated corrosion rates, coupled with the presence of high radiation da...
23ja059_archival_manuscript-1.pdf Jun 23, 2025 - Influence of Proton Irradiation on Corrosion in Liquid Lead Adobe PDF - 3.4 MB - MD5: a0cbb1fa21820a57543c66f3e572e8b9
23ja059_archival_manuscript.pdf Jun 23, 2025 - Influence of Proton Irradiation on Corrosion in Liquid Lead Adobe PDF - 3.4 MB - MD5: a0cbb1fa21820a57543c66f3e572e8b9
Plasma heating by electron cyclotron wave and the temperature effects on lower hybrid current drive on EAST Jun 23, 2025 Li, M.; Xu, H.; Wang, X.; Wang, M.; Ding, B.; Wu, C.; Yan, G.; Liu, L.; Zhao, L.; Wu, Z.; Xu, W.; Wu, D.; Zhang, L.; Tang, Y.; Li, H.; Wallace, G.; Baek, S.; Bonoli, P.; Zang, Q.; Lin, S.; Meng, L.; Zhao, H.; Xu, L.; Wang, M.; Zhang, X.; Huang, J.; Qian, J.; Gong, X., 2025, "Plasma heating by electron cyclotron wave and the temperature effects on lower hybrid current drive on EAST", https://doi.org/10.7910/DVN/NWFPA7, Harvard Dataverse, V1 This paper presents the progress in the long - pulse operation of the electron cyclotron (EC) system and the achievements in high - electron temperature plasmas by the combined EC and lower hybrid (LH) waves heating since the EC system was built in 2015. An electron temperature of up to 12 keV with a duration over 100 s was realized by the simultan...

Local Transport Dynamics of Cold Pulses in Tokamak Plasmas

Jun 25, 2025

P. Rodriguez-Fernandez , C. Angioni, A. E. White, 2025, "Local Transport Dynamics of Cold Pulses in Tokamak Plasmas", https://doi.org/10.7910/DVN/ZZP1XN, Harvard Dataverse, V5

For over two decades, our fundamental understanding of energy transport dynamics in the core of tokamak plasmas had been challenged by the striking observation of temperature perturbation reversals following the injection of cold pulses at the plasma edge. These phenomena were first discovered by Gentle et al. in 1995 and had long been suggested to...

Nonlinear Gyrokinetic Simulations of the I-mode High Confnement Regime and Comparisons with Experiment

Jun 24, 2025

A. E. White, N. T. Howard, A. J. Creely, M. A. Chilenski, M. Greenwald, A. E. Hubbard, J. W. Hughes, E. Marmar, J. E. Rice, J. M. Sierchio, C. Sung, J. R. Walk, and D. G. Whyte, D. R. Mikkelsen, E. M. Edlund, C. Kung, C. Holland, J. Candy, C. C. Petty, M. L. Reinke, C. Theiler, 2025, "Nonlinear Gyrokinetic Simulations of the I-mode High Confnement Regime and Comparisons with Experiment", https://doi.org/10.7910/DVN/NWHDBB, Harvard Dataverse, V2

For the first time, nonlinear gyrokinetic simulations of I-mode plasmas are performed and compared with experiment. I-mode is a high confinement regime, featuring energy confinement similar to H-mode, but without enhanced particle and impurity particle confinement [D. G. Whyte et al., Nucl. Fusion 50, 105005 (2010)]. As a consequence of the separat...

22ja006_archival_manuscript.pdf

Jun 24, 2025 - Local Transport Dynamics of Cold Pulses in Tokamak Plasmas

Adobe PDF - 11.8 MB -

Database study of turbulent electron temperature fluctuation measurements at ASDEX Upgrade

Jun 24, 2025

Christian Yoo, Rachel Bielajew, Garrard D. Conway, Pedro A. Molina Cabrera, Pablo Rodriguez-Fernandez, Branka Vanovac, Anne E. White, the EUROfusion MST1 Team, the ASDEX Upgrade Team, 2025, "Database study of turbulent electron temperature fluctuation measurements at ASDEX Upgrade", https://doi.org/10.7910/DVN/TATVKE, Harvard Dataverse, V15

In this work, an automated method for the analysis of data from the correlation electron cyclotron emission (CECE) diagnostic is applied to discharges in the ASDEX Upgrade (AUG) tokamak. This recently developed, automated method provides an efficient means of accurately analysing large quantities of experimental turbulence data, enabling the develo...

22ja104_archival_manuscript.pdf

Jun 24, 2025 - Database study of turbulent electron temperature fluctuation measurements at ASDEX Upgrade

Adobe PDF - 355.1 KB -

Qubit lattice approximation of some quantum and classical physics problems

Jun 23, 2025

Soe, Min; Vahala, George; Vahala, Linda; Ram, Abhay K.; Koukoutsis, Efstratios; Hizanidis, Kyriakos, 2025, "Qubit lattice approximation of some quantum and classical physics problems", https://doi.org/10.7910/DVN/71PCSV, Harvard Dataverse, V2

It is expected that quantum computers can provide exponential speedup over classical supercomputers for the solution of certain physics problems. We have been investigating the Qubit Lattice Approximation (QLA) for classical soliton collisions, for 2D and 3D quantum turbulence, and more recently for electromagnetic wave propagation in dielectric me...

Influence of Proton Irradiation on Corrosion in Liquid Lead

Jun 23, 2025

Zhou, Weiyue; Cairang, Wande; Amadeo, Paola; Woller, Kevin B.; Short, Michael P., 2025, "Influence of Proton Irradiation on Corrosion in Liquid Lead", https://doi.org/10.7910/DVN/3OGIPS, Harvard Dataverse, V24

The next-generation Gen IV nuclear reactors are designed to operate under increasingly challenging environments, aiming for higher thermal efficiency while adhering to strict physical and safety constraints. These harsh conditions, characterized by elevated temperatures and accelerated corrosion rates, coupled with the presence of high radiation da...

23ja059_archival_manuscript-1.pdf

Jun 23, 2025 - Influence of Proton Irradiation on Corrosion in Liquid Lead

Adobe PDF - 3.4 MB -

23ja059_archival_manuscript.pdf

Jun 23, 2025 - Influence of Proton Irradiation on Corrosion in Liquid Lead

Adobe PDF - 3.4 MB -

Plasma heating by electron cyclotron wave and the temperature effects on lower hybrid current drive on EAST

Jun 23, 2025

Li, M.; Xu, H.; Wang, X.; Wang, M.; Ding, B.; Wu, C.; Yan, G.; Liu, L.; Zhao, L.; Wu, Z.; Xu, W.; Wu, D.; Zhang, L.; Tang, Y.; Li, H.; Wallace, G.; Baek, S.; Bonoli, P.; Zang, Q.; Lin, S.; Meng, L.; Zhao, H.; Xu, L.; Wang, M.; Zhang, X.; Huang, J.; Qian, J.; Gong, X., 2025, "Plasma heating by electron cyclotron wave and the temperature effects on lower hybrid current drive on EAST", https://doi.org/10.7910/DVN/NWFPA7, Harvard Dataverse, V1

This paper presents the progress in the long - pulse operation of the electron cyclotron (EC) system and the achievements in high - electron temperature plasmas by the combined EC and lower hybrid (LH) waves heating since the EC system was built in 2015. An electron temperature of up to 12 keV with a duration over 100 s was realized by the simultan...

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