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Y. S. Hwang
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Journal Articles

Simultaneous measurements of temporal evolutions of the voltage and the current on the load of the Seoul National University X-pinch device using the optics-based systems

Seongmin Choi, Seunggi Ham, Jonghyeon Ryu, Sungbin Park, Jung-Hwa Kim, YeongHwan Choi, Muhyeop Cha, Seungmin Bong, Kyoung-Jae Chung, Y. S. Hwang, Y.-c. Ghim
Journal: Review of Scientific Instruments
Rev. Sci. Instrum. 95, 073531 (2024)
https://doi.org/10.1063/5.0219072
Published: July 2024
View article titled, Simultaneous measurements of temporal evolutions of the voltage and the current on the load of the Seoul National University X-pinch device using the optics-based systems
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Journal Articles

Azimuthal and axial dispersion relations of low-frequency oscillations in partially magnetized plasma with crossed electric and magnetic fields

Minkeun Lee, Cheongbin Cheon, Jinyoung Choi, Hae June Lee, Y. S. Hwang, Kyoung-Jae Chung, June Young Kim
Journal: Physics of Plasmas
Phys. Plasmas 30, 103502 (2023)
https://doi.org/10.1063/5.0154617
Published: October 2023
View article titled, Azimuthal and axial dispersion relations of low-frequency oscillations in partially magnetized plasma with crossed electric and magnetic fields
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Journal Articles

Estimation of plasma parameters of X-pinch with time-resolved x-ray spectroscopy

Seunggi Ham, Jonghyeon Ryu, Hakmin Lee, Sungbin Park, Y.-C. Ghim, Y. S. Hwang, Kyoung-Jae Chung
Journal: Matter and Radiation at Extremes
Matter Radiat. Extremes 8, 036901 (2023)
https://doi.org/10.1063/5.0131369
Published: March 2023
View article titled, Estimation of plasma parameters of X-pinch with time-resolved x-ray spectroscopy
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Journal Articles

Development of a soft x-ray (SXR) array diagnostic system on versatile experiment spherical torus (VEST)

Jae Young Jang, Soobin Lim, Seongcheol Kim, M. W. Lee, Young-Gi Kim, C. Sung, Y. S. Hwang
Journal: Review of Scientific Instruments
Rev. Sci. Instrum. 93, 093506 (2022)
https://doi.org/10.1063/5.0101883
Published: September 2022
View article titled, Development of a soft x-ray (SXR) array diagnostic system on versatile experiment spherical torus (VEST)
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Journal Articles

Numerical simulation for wire X-pinch plasma on 2D/3D geometry

Sang-Min Byun, Yong-Su Na, Sang-Jun Lee, Min-Ki Jung, Kyoung-Jae Chung, Y. S. Hwang, Deok-Kyu Kim, Sang June Hahn
Journal: Physics of Plasmas
Phys. Plasmas 29, 062701 (2022)
https://doi.org/10.1063/5.0076927
Published: June 2022
View article titled, Numerical simulation for wire X-pinch plasma on 2D/3D geometry
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Journal Articles

Identification of kink instability in 3D helical flux ropes at VEST

Jong Yoon Park, June Young Kim, Seongcheol Kim, E. C. Jung, Y. S. Hwang
Journal: Physics of Plasmas
Phys. Plasmas 29, 052112 (2022)
https://doi.org/10.1063/5.0087831
Published: May 2022
View article titled, Identification of kink instability in 3D helical flux ropes at VEST
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Journal Articles

Measurement on the electrical conductivity of copper along the binodal curve in warm dense regime

Sungbin Park, Hakmin Lee, Jonghyeon Ryu, Kyoung-Jae Chung, Y. S. Hwang, Kern Lee, Deok-Kyu Kim
Journal: Applied Physics Letters
Appl. Phys. Lett. 119, 174102 (2021)
https://doi.org/10.1063/5.0063073
Published: October 2021
View article titled, Measurement on the electrical conductivity of copper along the binodal curve in warm dense regime
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Journal Articles

Electric potential in partially magnetized E × B discharges

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June Young Kim, Jinyoung Choi, Y. S. Hwang, Kyoung-Jae Chung
Journal: AIP Advances
AIP Advances 11, 085113 (2021)
https://doi.org/10.1063/5.0061693
Published: August 2021
View article titled, Electric potential in partially magnetized <em>E</em> × <em>B</em> discharges
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Journal Articles

A modular X-pinch device for versatile X-pinch experiments at Seoul National University

Jonghyeon Ryu, Seunggi Ham, Juhyeong Lee, JongYoon Park, Sungbin Park, YeongHwan Choi, H. J. Woo, Kern Lee, Y.-C. Ghim, Y. S. Hwang, Kyoung-Jae Chung
Journal: Review of Scientific Instruments
Rev. Sci. Instrum. 92, 053533 (2021)
https://doi.org/10.1063/5.0041306
Published: May 2021
View article titled, A modular X-pinch device for versatile X-pinch experiments at Seoul National University
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Journal Articles

Development of an ultrafast charge exchange spectroscopy system on the KSTAR tokamak

Jae Young Jang, Won-Ha Ko, Yingying Li, Manfred von Hellermann, Yuejiang Shi, Y. S. Hwang
Journal: Review of Scientific Instruments
Rev. Sci. Instrum. 92, 053525 (2021)
https://doi.org/10.1063/5.0043824
Published: May 2021
View article titled, Development of an ultrafast charge exchange spectroscopy system on the KSTAR tokamak
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Journal Articles

Development of a filtered AXUV diode array for X-pinch soft x-ray spectra in the energy range of 1–10 keV

Seunggi Ham, Jonghyeon Ryu, Sungbin Park, Kyoung-Jae Chung, Y.-C. Ghim, H. J. Woo, Y. S. Hwang
Journal: Review of Scientific Instruments
Rev. Sci. Instrum. 92, 053509 (2021)
https://doi.org/10.1063/5.0034638
Published: May 2021
View article titled, Development of a filtered AXUV diode array for X-pinch soft x-ray spectra in the energy range of 1–10 keV
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Journal Articles

Radial profile measurement with an improved 1 kHz Thomson scattering system on Versatile Experiment Spherical Torus

Jung-Hwa Kim, Young-Gi Kim, Doyeon Kim, Jong-ha Lee, Y. S. Hwang
Journal: Review of Scientific Instruments
Rev. Sci. Instrum. 92, 043549 (2021)
https://doi.org/10.1063/5.0043792
Published: April 2021
View article titled, Radial profile measurement with an improved 1 kHz Thomson scattering system on Versatile Experiment Spherical Torus
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Journal Articles

Data analysis scheme for correcting general misalignments of an optics configuration for a voltage measurement system based on the Pockels electro-optic effect

Seongmin Choi, Dong-Geun Lee, H. J. Woo, S. H. Hong, Seunggi Ham, Jonghyeon Ryu, Kyoung-Jae Chung, Y. S. Hwang, Y.-c. Ghim
Journal: Review of Scientific Instruments
Rev. Sci. Instrum. 92, 043105 (2021)
https://doi.org/10.1063/5.0040467
Published: April 2021
View article titled, Data analysis scheme for correcting general misalignments of an optics configuration for a voltage measurement system based on the Pockels electro-optic effect
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Journal Articles

Improved gating device of time-of-flight ion mass analyzer for ion sources

Kyumin Choe, DongHwan Kim, Kyoung-Jae Chung, Y. S. Hwang
Journal: Review of Scientific Instruments
Rev. Sci. Instrum. 90, 033305 (2019)
https://doi.org/10.1063/1.5088576
Published: March 2019
View article titled, Improved gating device of time-of-flight ion mass analyzer for ion sources
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Journal Articles

Modified propagation path and expanded coupling regime of lower hybrid fast wave by n ∥ -upshift via wave scattering in VEST

JongGab Jo, J. Wang, S. C. Kim, SeulChan Hong, Soobin Lim, J. Yang, S. H. Kim, Y. S. Hwang
Journal: Physics of Plasmas
Phys. Plasmas 26, 012506 (2019)
https://doi.org/10.1063/1.5055294
Published: January 2019
View article titled, Modified propagation path and expanded coupling regime of lower hybrid fast wave by n ∥ -upshift via wave scattering in VEST
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Journal Articles

Simple and accurate method of diamagnetic flux measurement in Versatile Experimental Spherical Torus (VEST)

J. Yang, Y. Kim, W. I. Jeong, Y. S. Hwang
Journal: Review of Scientific Instruments
Rev. Sci. Instrum. 89, 103508 (2018)
https://doi.org/10.1063/1.5041517
Published: October 2018
View article titled, Simple and accurate method of diamagnetic flux measurement in Versatile Experimental Spherical Torus (VEST)
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Journal Articles

Initial operation results of NE213 scintillation detector for time-resolved measurements on triton burnup in KSTAR

Jungmin Jo, MunSeong Cheon, Junghee Kim, Soobin Lim, M. Isobe, K. Ogawa, T. Nishitani, Seugil Park, I. Murata, Kyoung-Jae Chung, Y. S. Hwang
Journal: Review of Scientific Instruments
Rev. Sci. Instrum. 89, 10I118 (2018)
https://doi.org/10.1063/1.5039308
Published: October 2018
View article titled, Initial operation results of NE213 scintillation detector for time-resolved measurements on triton burnup in KSTAR
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Journal Articles

Design of an imaging Fabry-Pérot interferometer for the VEST edge plasma temperature measurement

Seunggi Ham, Nikolay Britun, Doyeon Kim, Yoosung Kim, Soo-Ghee Oh, Y. S. Hwang
Journal: Review of Scientific Instruments
Rev. Sci. Instrum. 89, 10D108 (2018)
https://doi.org/10.1063/1.5038927
Published: August 2018
View article titled, Design of an imaging Fabry-Pérot interferometer for the VEST edge plasma temperature measurement
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Journal Articles

Coupling study of fast wave near the lower hybrid frequency range in VEST

JongGab Jo, J. Wang, H. W. Lee, S. C. Kim, B. J. Lee, S. H. Kim, Y. S. Hwang
Journal: Physics of Plasmas
Phys. Plasmas 25, 082511 (2018)
https://doi.org/10.1063/1.5037370
Published: August 2018
View article titled, Coupling study of fast wave near the lower hybrid frequency range in VEST
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Journal Articles

Enhanced shock wave generation via pre-breakdown acceleration using water electrolysis in negative streamer pulsed spark discharges

Kern Lee, Kyoung-Jae Chung, Y. S. Hwang
Journal: Applied Physics Letters
Appl. Phys. Lett. 112, 134101 (2018)
https://doi.org/10.1063/1.5021365
Published: March 2018
View article titled, Enhanced shock wave generation via pre-breakdown acceleration using water electrolysis in negative streamer pulsed spark discharges
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