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Karl E. Lonngren
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Journal Articles

On the Debye and transient sheaths in a discharge plasma

Karl E. Lonngren, Igor Alexeff
Journal: Physics of Plasmas
Phys. Plasmas 15, 093505 (2008)
https://doi.org/10.1063/1.2978163
Published: September 2008
View articletitled, On the Debye and transient sheaths in a discharge plasma
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Journal Articles

Experiments on ion wake fields

Hyun-Soo Kim, Seungjun Yi, Ali Amin, Raymon T. Carpenter, Karl E. Lonngren
Journal: Physics of Plasmas
Phys. Plasmas 4, 3783–3787 (1997)
https://doi.org/10.1063/1.872503
Published: November 1997
View articletitled, Experiments on ion wake fields
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Journal Articles

Rarefactive ion acoustic soliton excitation using a modulated high-frequency sinusoidal wave in a negative ion plasma

Seungjun Yi, Karl E. Lonngren
Journal: Physics of Plasmas
Phys. Plasmas 4, 2893–2898 (1997)
https://doi.org/10.1063/1.872420
Published: August 1997
View articletitled, Rarefactive ion acoustic soliton excitation using a modulated high-frequency sinusoidal wave in a negative ion plasma
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Journal Articles

Ion acoustic soliton excitation using a modulated high-frequency sinusoidal wave

Seungjun Yi, Er-Wei Bai, Karl E. Lonngren
Journal: Physics of Plasmas
Phys. Plasmas 4, 2436–2442 (1997)
https://doi.org/10.1063/1.872224
Published: July 1997
View articletitled, Ion acoustic soliton excitation using a modulated high-frequency sinusoidal wave
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Journal Articles

Two‐dimensional sheath evolution in a negative ion plasma

Yasser El‐Zein, Ali Amin, Chonghui Shen, Seungjun Yi, Karl E. Lonngren, Terrence E. Sheridan
Journal: Journal of Applied Physics
J. Appl. Phys. 79, 3853–3860 (1996)
https://doi.org/10.1063/1.361803
Published: April 1996
View articletitled, Two‐dimensional sheath evolution in a negative ion plasma
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Journal Articles

Reflection of modified Korteweg–de Vries solitons in a negative ion plasma

Seungjun Yi, Jamie L. Cooney, Hyun‐Soo Kim, Ali Amin, Yasser El‐Zein, Karl E. Lonngren
Journal: Physics of Plasmas
Phys. Plasmas 3, 529–535 (1996)
https://doi.org/10.1063/1.871879
Published: February 1996
View articletitled, Reflection of modified Korteweg–de Vries solitons in a negative ion plasma
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Journal Articles

Energy of positive ions absorbed by negatively pulsed electrodes in two and three component plasmas

Ali Amin, Hyun‐Soo Kim, Seungjun Yi, Karl E. Lonngren, Igor Alexeff
Journal: Journal of Applied Physics
J. Appl. Phys. 77, 3674–3678 (1995)
https://doi.org/10.1063/1.358605
Published: April 1995
View articletitled, Energy of positive ions absorbed by negatively pulsed electrodes in two and three component plasmas
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Journal Articles

Expansion of a negative ion plasma into a vacuum

Yasser El‐Zein, Ali Amin, Hyun‐Soo Kim, Seungjun Yi, Karl E. Lonngren
Journal: Physics of Plasmas
Phys. Plasmas 2, 1073–1076 (1995)
https://doi.org/10.1063/1.871386
Published: April 1995
View articletitled, Expansion of a negative ion plasma into a vacuum
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Journal Articles

Positive ion current to a spherical electrode in a negative ion plasma

Ali Amin, Hyun‐Soo Kim, Seungjun Yi, Jamie L. Cooney, Karl E. Lonngren
Journal: Journal of Applied Physics
J. Appl. Phys. 75, 4427–4431 (1994)
https://doi.org/10.1063/1.355986
Published: May 1994
View articletitled, Positive ion current to a spherical electrode in a negative ion plasma
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Journal Articles

Sheath evolution in a negative ion plasma

Ali Amin, David Aossey, Binh Ton Nguyen, Hyun‐Soo Kim, Jamie L. Cooney, Karl E. Lonngren
Journal: Physics of Fluids B: Plasma Physics
Phys. Fluids B 5, 3813–3818 (1993)
https://doi.org/10.1063/1.860599
Published: October 1993
View articletitled, Sheath evolution in a negative ion plasma
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Journal Articles

Soliton propagation, collision, and reflection at a sheath in a positive ion–negative ion plasma

Jamie L. Cooney, Matthew T. Gavin, James E. Williams, David W. Aossey, Karl E. Lonngren
Journal: Physics of Fluids B: Plasma Physics
Phys. Fluids B 3, 3277–3285 (1991)
https://doi.org/10.1063/1.859759
Published: December 1991
View articletitled, Soliton propagation, collision, and reflection at a sheath in a positive ion–negative ion plasma
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Journal Articles

Experiments on Korteweg–de Vries solitons in a positive ion–negative ion plasma

Jamie L. Cooney, Matthew T. Gavin, Karl E. Lonngren
Journal: Physics of Fluids B: Plasma Physics
Phys. Fluids B 3, 2758–2766 (1991)
https://doi.org/10.1063/1.859912
Published: October 1991
View articletitled, Experiments on Korteweg–de Vries solitons in a positive ion–negative ion plasma
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Journal Articles

Modulation of the plasma flow in plasma wake experiments

Jin Tao, Jamie Cooney, Wee Beng Lim, Mohammad S. Ghaemi, Karl E. Lonngren
Journal: Journal of Applied Physics
J. Appl. Phys. 67, 1246–1248 (1990)
https://doi.org/10.1063/1.345723
Published: February 1990
View articletitled, Modulation of the plasma flow in plasma wake experiments
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Journal Articles

Plasma flow characteristics through small orifices

Jin Tao, Kelly Beardsley, Amir Seyhoonzadeh, Kim Tai, Peter Forsling, Karl E. Lonngren
Journal: Journal of Applied Physics
J. Appl. Phys. 65, 4192–4197 (1989)
https://doi.org/10.1063/1.343299
Published: June 1989
View articletitled, Plasma flow characteristics through small orifices
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Journal Articles

A Macintosh based transistor curve tracer and analyzer

Wee Beng Lim, Kim Tai, Amir Seyhoonzadeh, Jin Tao, Jamie Cooney, Peter Forsling, Mohammad S. Ghaemi, Mark Bailey, Norbert R. Malik, Karl E. Lonngren
Journal: Review of Scientific Instruments
Rev. Sci. Instrum. 60, 265–267 (1989)
https://doi.org/10.1063/1.1140420
Published: February 1989
View articletitled, A Macintosh based transistor curve tracer and analyzer
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Includes: Supplementary data
Journal Articles

Plasma data acquisition with a Macintosh

Kim Tai, Wee Beng Lim, Amir Seyhoonzadeh, Jamie Cooney, Jin Tao, Mark Bailey, Peter Forsling, David R. Andersen, Karl E. Lonngren
Journal: Review of Scientific Instruments
Rev. Sci. Instrum. 59, 995–996 (1988)
https://doi.org/10.1063/1.1139770
Published: June 1988
View articletitled, Plasma data acquisition with a Macintosh
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Includes: Supplementary data
Journal Articles

Spherical expansion of a plasma into an underdense plasma

Amir Seyhoonzadeh, Peter Forsling, Mark Bailey, Rachel Rosario, Kelly Beardsley, Jin Tao, Karl E. Lonngren
Journal: The Physics of Fluids
Phys. Fluids 31, 682–686 (1988)
https://doi.org/10.1063/1.866799
Published: March 1988
View articletitled, Spherical expansion of a plasma into an underdense plasma
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Journal Articles

Experiments on the wake behind a magnetized object in a flowing plasma

Kelly Beardsley, Jacqueline Hill, Amir Seyhoonzadeh, Rachel Rosario, Peter Forsling, Karl E. Lonngren
Journal: The Physics of Fluids
Phys. Fluids 30, 3252–3256 (1987)
https://doi.org/10.1063/1.866500
Published: October 1987
View articletitled, Experiments on the wake behind a magnetized object in a flowing plasma
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Journal Articles

A note on velocity modulation

Karl E. Lonngren
Journal: American Journal of Physics
Am. J. Phys. 55, 634–636 (1987)
https://doi.org/10.1119/1.15091
Published: July 1987
View articletitled, A note on velocity modulation
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Journal Articles

Inexpensive transistor curve tracer

Amir Seyhoonzadeh, Hong‐Young Chang, Karl E. Lonngren
Journal: Review of Scientific Instruments
Rev. Sci. Instrum. 58, 849–852 (1987)
https://doi.org/10.1063/1.1139643
Published: May 1987
View articletitled, Inexpensive transistor curve tracer
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