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Ronald H. Cohen
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Journal Articles

Generation of non-axisymmetric scrape-off layer perturbations for controlling tokamak edge plasma profiles and stability

Ilon Joseph, Ronald H. Cohen, Thomas D. Rognlien, Dmitri D. Ryutov
Journal: Physics of Plasmas
Phys. Plasmas 19, 056124 (2012)
https://doi.org/10.1063/1.3702048
Published: May 2012
View article titled, Generation of non-axisymmetric scrape-off layer perturbations for controlling tokamak edge plasma profiles and stability
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Journal Articles

Driving toroidally asymmetric current through the tokamak scrape-off layer. I. Potential for edge localized mode suppression

Ilon Joseph, Ronald H. Cohen, Dmitri D. Ryutov
Journal: Physics of Plasmas
Phys. Plasmas 16, 052510 (2009)
https://doi.org/10.1063/1.3134580
Published: May 2009
View article titled, Driving toroidally asymmetric current through the tokamak scrape-off layer. I. Potential for edge localized mode suppression
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Journal Articles

Three-dimensional simulation of a Richtmyer–Meshkov instability with a two-scale initial perturbation

Ronald H. Cohen, William P. Dannevik, Andris M. Dimits, Donald E. Eliason, Arthur A. Mirin, Ye Zhou, David H. Porter, Paul R. Woodward
Journal: Physics of Fluids
Physics of Fluids 14, 3692–3709 (2002)
https://doi.org/10.1063/1.1504452
Published: October 2002
View article titled, Three-dimensional simulation of a Richtmyer–Meshkov instability with a two-scale initial perturbation
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Journal Articles

Drifts, boundary conditions and convection on open field lines

Ronald H. Cohen, Dmitri Ryutov
Journal: Physics of Plasmas
Phys. Plasmas 6, 1995–2001 (1999)
https://doi.org/10.1063/1.873455
Published: May 1999
View article titled, Drifts, boundary conditions and convection on open field lines
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Journal Articles

Sheath over a rough surface in a tilted magnetic field

Ronald H. Cohen, Dmitri D. Ryutov
Journal: Physics of Plasmas
Phys. Plasmas 5, 2194–2196 (1998)
https://doi.org/10.1063/1.872926
Published: June 1998
View article titled, Sheath over a rough surface in a tilted magnetic field
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Journal Articles

Beam-type instabilities of the sheath in a grazing magnetic field

Ronald H. Cohen, Dmitri D. Ryutov
Journal: Physics of Plasmas
Phys. Plasmas 4, 905–907 (1997)
https://doi.org/10.1063/1.872206
Published: April 1997
View article titled, Beam-type instabilities of the sheath in a grazing magnetic field
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Journal Articles

Induced magnetic‐field effects in inductively coupled plasmas

Ronald H. Cohen, Thomas D. Rognlien
Journal: Physics of Plasmas
Phys. Plasmas 3, 1839–1847 (1996)
https://doi.org/10.1063/1.871979
Published: May 1996
View article titled, Induced magnetic‐field effects in inductively coupled plasmas
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Journal Articles

Spreading particle trajectories near a perfectly reflecting surface in a tilted magnetic field

Ronald H. Cohen, Dmitri D. Ryutov
Journal: Physics of Plasmas
Phys. Plasmas 2, 4118–4121 (1995)
https://doi.org/10.1063/1.871034
Published: November 1995
View article titled, Spreading particle trajectories near a perfectly reflecting surface in a tilted magnetic field
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Journal Articles

How fluctuations continue through an X point

Nathan Mattor, Ronald H. Cohen
Journal: Physics of Plasmas
Phys. Plasmas 2, 4042–4048 (1995)
https://doi.org/10.1063/1.871027
Published: November 1995
View article titled, How fluctuations continue through an X point
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Journal Articles

A model for a scrape‐off‐layer low‐high (L‐H) mode transition

Ronald H. Cohen, Xueqiao Xu
Journal: Physics of Plasmas
Phys. Plasmas 2, 3374–3383 (1995)
https://doi.org/10.1063/1.871172
Published: September 1995
View article titled, A model for a scrape‐off‐layer low‐high (L‐H) mode transition
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Journal Articles

Plasma sheath in a tilted magnetic field: Closing of the diamagnetic currents; effect on plasma convection

Ronald H. Cohen, Dmitri D. Ryutov
Journal: Physics of Plasmas
Phys. Plasmas 2, 2011–2019 (1995)
https://doi.org/10.1063/1.871288
Published: June 1995
View article titled, Plasma sheath in a tilted magnetic field: Closing of the diamagnetic currents; effect on plasma convection
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Journal Articles

Instability due to axial shear and surface impedance

Yu. A. Tsidulko, H. L. Berk, Ronald H. Cohen
Journal: Physics of Plasmas
Phys. Plasmas 1, 1199–1213 (1994)
https://doi.org/10.1063/1.870717
Published: May 1994
View article titled, Instability due to axial shear and surface impedance
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Journal Articles

Gradient effects on intense, pulsed electron‐cyclotron‐wave absorption and current drive

Ronald H. Cohen, Thomas D. Rognlien
Journal: Physics of Fluids B: Plasma Physics
Phys. Fluids B 3, 3406–3421 (1991)
https://doi.org/10.1063/1.859771
Published: December 1991
View article titled, Gradient effects on intense, pulsed electron‐cyclotron‐wave absorption and current drive
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Journal Articles

Erratum: ‘‘An electromagnetic trapped‐particle sideband instability’’ [Phys. Fluids 31 , 3444 (1988)]

Bruce I. Cohen, Ronald H. Cohen
Journal: Physics of Fluids B: Plasma Physics
Phys. Fluids B 2, 682 (1990)
https://doi.org/10.1063/1.859586
Published: March 1990
View article titled, Erratum: ‘‘An electromagnetic trapped‐particle sideband instability’’ [Phys. Fluids 31 , 3444 (1988)]
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Journal Articles

Pulsed lower‐hybrid wave penetration in reactor plasmas

Ronald H. Cohen, Paul T. Bonoli, Miklos Porkolab, Thomas D. Rognlien
Journal: AIP Conference Proceedings
AIP Conf. Proc. 190, 126–129 (1989)
https://doi.org/10.1063/1.38536
Published: July 1989
View article titled, Pulsed lower‐hybrid wave penetration in reactor plasmas
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Journal Articles

An electromagnetic trapped‐particle sideband instability

Bruce I. Cohen, Ronald H. Cohen
Journal: The Physics of Fluids
Phys. Fluids 31, 3444–3446 (1988)
https://doi.org/10.1063/1.866910
Published: November 1988
View article titled, An electromagnetic trapped‐particle sideband instability
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Journal Articles

Erratum: ‘‘Effect of trapped electrons on current drive’’ [Phys. Fluids 3 0 , 2442 (1987)]

Ronald H. Cohen
Journal: The Physics of Fluids
Phys. Fluids 31, 421 (1988)
https://doi.org/10.1063/1.867030
Published: February 1988
View article titled, Erratum: ‘‘Effect of trapped electrons on current drive’’ [Phys. Fluids 3 0 , 2442 (1987)]
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Journal Articles

Harmonic overlap in electron‐cyclotron current drive at high Te

Gary R. Smith, Ronald H. Cohen, T. K. Mau
Journal: The Physics of Fluids
Phys. Fluids 30, 3633–3635 (1987)
https://doi.org/10.1063/1.866448
Published: November 1987
View article titled, Harmonic overlap in electron‐cyclotron current drive at high <em>T</em><sub><em>e</em></sub>
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Journal Articles

Effect of trapped electrons on current drive

Ronald H. Cohen
Journal: The Physics of Fluids
Phys. Fluids 30, 2442–2449 (1987)
https://doi.org/10.1063/1.866136
Published: August 1987
View article titled, Effect of trapped electrons on current drive
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Journal Articles

Potentials in thermal barriers with strong electron‐cyclotron heating

Ronald H. Cohen
Journal: The Physics of Fluids
Phys. Fluids 26, 2774–2777 (1983)
https://doi.org/10.1063/1.864067
Published: October 1983
View article titled, Potentials in thermal barriers with strong electron‐cyclotron heating
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