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N. C. Logan
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Journal Articles

Early internal detection of magnetic tearing and implications for tokamak magnetohydrodynamic stability

Editor’s Pick
M. D. Pandya, B. E. Chapman, K. J. McCollam, R. A. Myers, J. S. Sarff, B. S. Victor, D. P. Brennan, D. L. Brower, J. Chen, W. X. Ding, C. T. Holcomb, N. C. Logan, E. J. Strait
Journal: Physics of Plasmas
Phys. Plasmas 31, 070706 (2024)
https://doi.org/10.1063/5.0205964
Published: July 2024
View article titled, Early internal detection of magnetic tearing and implications for tokamak magnetohydrodynamic stability
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Journal Articles

Flexible, integrated modeling of tokamak stability, transport, equilibrium, and pedestal physics

B. C. Lyons, J. McClenaghan, T. Slendebroek, O. Meneghini, T. F. Neiser, S. P. Smith, D. B. Weisberg, E. A. Belli, J. Candy, J. M. Hanson, L. L. Lao, N. C. Logan, S. Saarelma, O. Sauter, P. B. Snyder, G. M. Staebler, K. E. Thome, A. D. Turnbull
Journal: Physics of Plasmas
Phys. Plasmas 30, 092510 (2023)
https://doi.org/10.1063/5.0156877
Published: September 2023
View article titled, Flexible, integrated modeling of tokamak stability, transport, equilibrium, and pedestal physics
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Journal Articles

Empirical probability and machine learning analysis of m, n = 2, 1 tearing mode onset parameter dependence in DIII-D H-mode scenarios

L. Bardóczi, N. J. Richner, J. Zhu, C. Rea, N. C. Logan
Journal: Physics of Plasmas
Phys. Plasmas 30, 092505 (2023)
https://doi.org/10.1063/5.0165859
Published: September 2023
View article titled, Empirical probability and machine learning analysis of <em>m</em>, <em>n</em> = 2, 1 tearing mode onset parameter dependence in DIII-D H-mode scenarios
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Journal Articles

Verification of neoclassical toroidal viscosity induced by energetic particles

Z. R. Wang, Y. Q. Liu, N. C. Logan, C. Chrystal, S. Munaretto, Q. M. Hu, T. Liu, J.-K. Park
Journal: Physics of Plasmas
Phys. Plasmas 29, 102510 (2022)
https://doi.org/10.1063/5.0096964
Published: October 2022
View article titled, Verification of neoclassical toroidal viscosity induced by energetic particles
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Journal Articles

AC compensation of 3D magnetic diagnostic signals in DIII-D and National Spherical Torus Experiment-Upgrade (NSTX-U) for real-time application

S. Munaretto, C. E. Myers, S. P. Gerhardt, N. C. Logan, J. E. Menard, E. J. Strait
Journal: Review of Scientific Instruments
Rev. Sci. Instrum. 93, 093528 (2022)
https://doi.org/10.1063/5.0101630
Published: September 2022
View article titled, AC compensation of 3D magnetic diagnostic signals in DIII-D and National Spherical Torus Experiment-Upgrade (NSTX-U) for real-time application
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Journal Articles

Optimizing the differential connection schemes for detecting 3D magnetic perturbations in DIII-D

S. Munaretto, E. J. Strait, N. C. Logan
Journal: Review of Scientific Instruments
Rev. Sci. Instrum. 92, 073504 (2021)
https://doi.org/10.1063/5.0045453
Published: July 2021
View article titled, Optimizing the differential connection schemes for detecting 3D magnetic perturbations in DIII-D
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Journal Articles

Predicting operational windows of ELMs suppression by resonant magnetic perturbations in the DIII-D and KSTAR tokamaks

Featured
Q. M. Hu, R. Nazikian, N. C. Logan, J.-K. Park, C. Paz-Soldan, S. M. Yang, B. A. Grierson, Y. In, Y. M. Jeon, M. Kim, S. K. Kim, D. M. Orlov, G. Y. Park, Q. Yu
Journal: Physics of Plasmas
Phys. Plasmas 28, 052505 (2021)
https://doi.org/10.1063/5.0043018
Published: May 2021
View article titled, Predicting operational windows of ELMs suppression by resonant magnetic perturbations in the DIII-D and KSTAR tokamaks
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Journal Articles

Electromagnetic torque measurements in DIII-D using internal/external magnetic field decomposition

E. J. Strait, S. Munaretto, R. M. Sweeney, N. C. Logan, A. O. Nelson
Journal: Review of Scientific Instruments
Rev. Sci. Instrum. 92, 043516 (2021)
https://doi.org/10.1063/5.0040598
Published: April 2021
View article titled, Electromagnetic torque measurements in DIII-D using internal/external magnetic field decomposition
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Journal Articles

The density dependence of edge-localized-mode suppression and pump-out by resonant magnetic perturbations in the DIII-D tokamak

Q. M. Hu, R. Nazikian, B. A. Grierson, N. C. Logan, J.-K. Park, C. Paz-Soldan, Q. Yu
Journal: Physics of Plasmas
Phys. Plasmas 26, 120702 (2019)
https://doi.org/10.1063/1.5134767
Published: December 2019
View article titled, The density dependence of edge-localized-mode suppression and pump-out by resonant magnetic perturbations in the DIII-D tokamak
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Includes: Supplementary data
Journal Articles

Modal analysis of the full poloidal structure of the plasma response to n = 2 magnetic perturbations

S. Munaretto, E. J. Strait, S. R. Haskey, N. C. Logan, C. Paz-Soldan, D. B. Weisberg
Journal: Physics of Plasmas
Phys. Plasmas 25, 072509 (2018)
https://doi.org/10.1063/1.5029381
Published: July 2018
View article titled, Modal analysis of the full poloidal structure of the plasma response to n = 2 magnetic perturbations
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Journal Articles

Dynamic divertor control using resonant mixed toroidal harmonic magnetic fields during ELM suppression in DIII-D

M. Jia, Y. Sun, C. Paz-Soldan, R. Nazikian, S. Gu, Y. Q. Liu, T. Abrams, I. Bykov, L. Cui, T. Evans, A. Garofalo, W. Guo, X. Gong, C. Lasnier, N. C. Logan, M. Makowski, D. Orlov, H. H. Wang
Journal: Physics of Plasmas
Phys. Plasmas 25, 056102 (2018)
https://doi.org/10.1063/1.5019777
Published: March 2018
View article titled, Dynamic divertor control using resonant mixed toroidal harmonic magnetic fields during ELM suppression in DIII-D
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Journal Articles

Impact of toroidal and poloidal mode spectra on the control of non-axisymmetric fields in tokamaks

M. J. Lanctot, J.-K. Park, P. Piovesan, Y. Sun, R. J. Buttery, L. Frassinetti, B. A. Grierson, J. M. Hanson, S. R. Haskey, Y. In, Y. M. Jeon, R. J. La Haye, N. C. Logan, L. Marrelli, D. M. Orlov, C. Paz-Soldan, H. H. Wang, E. J. Strait, JET Contributors
Journal: Physics of Plasmas
Phys. Plasmas 24, 056117 (2017)
https://doi.org/10.1063/1.4982688
Published: May 2017
View article titled, Impact of toroidal and poloidal mode spectra on the control of non-axisymmetric fields in tokamaks
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Journal Articles

Spatial and temporal analysis of DIII-D 3D magnetic diagnostic data

E. J. Strait, J. D. King, J. M. Hanson, N. C. Logan
Journal: Review of Scientific Instruments
Rev. Sci. Instrum. 87, 11D423 (2016)
https://doi.org/10.1063/1.4960419
Published: August 2016
View article titled, Spatial and temporal analysis of DIII-D 3D magnetic diagnostic data
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Journal Articles

Three-dimensional equilibria and island energy transport due to resonant magnetic perturbation edge localized mode suppression on DIII-D

J. D. King, E. J. Strait, R. Nazikian, C. Paz-Soldan, D. Eldon, M. E. Fenstermacher, N. M. Ferraro, J. M. Hanson, S. R. Haskey, R. J. La Haye, M. J. Lanctot, S. A. Lazerson, N. C. Logan, Y. Q. Liu, M. Okabayashi, J.-K. Park, D. Shiraki, A. D. Turnbull
Journal: Physics of Plasmas
Phys. Plasmas 22, 112502 (2015)
https://doi.org/10.1063/1.4935486
Published: November 2015
View article titled, Three-dimensional equilibria and island energy transport due to resonant magnetic perturbation edge localized mode suppression on DIII-D
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Journal Articles

Experimental tests of linear and nonlinear three-dimensional equilibrium models in DIII-D

J. D. King, E. J. Strait, S. A. Lazerson, N. M. Ferraro, N. C. Logan, S. R. Haskey, J.-K. Park, J. M. Hanson, M. J. Lanctot, Yueqiang Liu, R. Nazikian, M. Okabayashi, C. Paz-Soldan, D. Shiraki, A. D. Turnbull
Journal: Physics of Plasmas
Phys. Plasmas 22, 072501 (2015)
https://doi.org/10.1063/1.4923017
Published: July 2015
View article titled, Experimental tests of linear and nonlinear three-dimensional equilibrium models in DIII-D
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Journal Articles

An upgrade of the magnetic diagnostic system of the DIII-D tokamak for non-axisymmetric measurements

J. D. King, E. J. Strait, R. L. Boivin, D. Taussig, M. G. Watkins, J. M. Hanson, N. C. Logan, C. Paz-Soldan, D. C. Pace, D. Shiraki, M. J. Lanctot, R. J. La Haye, L. L. Lao, D. J. Battaglia, A. C. Sontag, S. R. Haskey, J. G. Bak
Journal: Review of Scientific Instruments
Rev. Sci. Instrum. 85, 083503 (2014)
https://doi.org/10.1063/1.4891817
Published: August 2014
View article titled, An upgrade of the magnetic diagnostic system of the DIII-D tokamak for non-axisymmetric measurements
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Journal Articles

The importance of matched poloidal spectra to error field correction in DIII-D

C. Paz-Soldan, M. J. Lanctot, N. C. Logan, D. Shiraki, R. J. Buttery, J. M. Hanson, R. J. La Haye, J.-K. Park, W. M. Solomon, E. J. Strait
Journal: Physics of Plasmas
Phys. Plasmas 21, 072503 (2014)
https://doi.org/10.1063/1.4886795
Published: July 2014
View article titled, The importance of matched poloidal spectra to error field correction in DIII-D
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Journal Articles

Benchmarking kinetic calculations of resistive wall mode stability

J. W. Berkery, Y. Q. Liu, Z. R. Wang, S. A. Sabbagh, N. C. Logan, J.-K. Park, J. Manickam, R. Betti
Journal: Physics of Plasmas
Phys. Plasmas 21, 052505 (2014)
https://doi.org/10.1063/1.4873894
Published: May 2014
View article titled, Benchmarking kinetic calculations of resistive wall mode stability
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