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Submitted Papers

1 Jonghyeon Ryu, Seunggi Ham, Juhyeong Lee, JongYoon Park, Sungbin Park, YeongHwan Choi, H.J. Woo, Kern Lee, Y.-c. Ghim, Y.S. Hwang and Kyoung-Jae Chung
A modular X-pinch device for versatile X-pinch experiments at Seoul National University

submitted to Rev. Sci. Instrum.


Published Papers

46 Seunggi Ham, Jonghyeon Ryu, Sungbin Park, Kyoung-Jae Chung, Y.-c. Ghim, H.J. Woo and Y.S. Hwang
Development of filtered AXUV diode array for X-pinch soft X-ray spectrum reconstruction in the energy range of 1 - 10 keV

Rev. Sci. Instrum. 92, 053509 (2021)

45 Seongmin Choi, Dong-Geun Lee, H.J. Woo, S.H. Hong, Seunggi Ham, Jonghyeon Ryu, Kyoung-Jae Chung, Y.S. Hwang and Y.-c. Ghim
Data analysis scheme for correcting general misalignments of an optics configuration for a voltage measurement system based on the Pockels electro-optic effect

Rev. Sci. Instrum. 92, 043105 (2021)

44 Dong-Geun Lee, K.C. Lee, J.-W. Juhn, Jae-seok Lee and Y.-c. Ghim
New heterodyne dispersion interferometer system, Single Crystal Dispersion Interferometer, installed on KSTAR and its first measurement

Rev. Sci. Instrum. 92, 033536 (2021)

43 Jae-seok Lee, Dong-Geun Lee, K.C. Lee, J.-W. Juhn and Y.-c. Ghim
Development of a forward model for Bayesian analysis of a Single Crystal Dispersion Interferometer

Rev. Sci. Instrum. 92, 033520 (2021)

42 Yegeon Lim, Yong Sung You, Wonjun Lee, Bin Ahn, Se Youn Moon, B. Kim, H.J. Woo, Taihyeop Lho, W. Choe and Y.-c. Ghim
New low temperature multidipole plasma device with a magnetic X-point and its properties

Plasma Sources Science and Technology 29, 115012 (2020)

41 Jaewook Kim, M.J. Choi, Y.U. Nam, Hogun Jhang, J.G. Bak, S.H. Hahn, C. Sung, W. Choe and Y.-c. Ghim
Nonlinear energy transfer from low frequency electromagnetic fluctuations to broadband turbulence during edge localized mode crashes

Nuclear Fusion 60, 124002 (2020)

40 Seongmin Choi, Alvin A. Sugianto, Dong-geun Lee, H.J. Woo, S.H. Hong and Y.-c. Ghim
Polar-coordinate-based data analysis scheme for high-voltage measurement system using the Pockels electro-optic effect

Journal of Instrumentation 15, C03030 (2020)

39 Sehyun Kwak, J. Svensson, S. Bozhenkov, J. Flanagan, M. Kempenaars, A. Boboc, Y.-c. Ghim and JET Contributors
Bayesian modelling of Thomson scattering and multichannel interferometer diagnostics using Gaussian processes

Nuclear Fusion 60, 046009 (2020)

38 Semin Joung, Jaewook Kim, Sehyun Kwak, J.G. Bak, S.G. Lee, H.S. Han, H.S. Kim, Geunho Lee, Daeho Kwon and Y.-c. Ghim
Deep neural network Grad-Shafranov solver constrained with measured magnetic signals

Nuclear Fusion 60, 016034 (2020)

37 J.R. Harrison et al.
Overview of new MAST physics in anticipation of first results from MAST Upgrade

Nucl. Fusion 59, 112011 (2019)

36 M.S. Bawaaneh, A.M. Al-Khateeb and Y.-c. Ghim
Thermal enhancement of absorption of EM radiation in a hot magnetoplasma slab

IEEE Trans. Antennas Propag. 66, 6525 (2018) 

35 Yeong-Kook Oh et al.
Progress of the KSTAR Research Program Exploring the Advanced High Performance and Steady-State Plasma Operations

J. Korean Phys. Soc. 73, 712 (2018)

34 Semin Joung, Jaewook Kim, Sehyun Kwak, Kyeo-reh Park, S.H. Hahn, H.S. Han, H.S. Kim, J.G. Bak, S.G. Lee and Y.-c. Ghim
Imputation of faulty magnetic sensors with coupled Bayesian and Gaussian processes to reconstruct the magnetic equilibrium in real time

Rev. Sci. Instrum. 89, 10K106 (2018)

33 M. S. Bawaaneh, A. M. Al-Khateeb and Y.-c. Ghim
Resistance and reactance of monopole fields induced by a test charge drifting off-axis in a cold and collisional cylindrical plasma

Chin. Phys. Lett. 35, 085101 (2018)

32 Jaewook Kim, Wonjun Lee, Hogun Jhang, S.S. Kim, H.H. Kaang and Y.-c. Ghim
Evolution of magnetic Kubo number of stochastic magnetic fields during the edge pedestal collapse simulation

Phys. Plasmas 25, 082306 (2018)

31 Sang Min Kim, B. V. S. Jyoti, Seung Wook Baek, D. C. Kyritsis and Y.-c. Ghim
Effects of electrostatic voltage and polarity on diffusion-controlled propane flame for enhanced efficiency

J. Energy Engineering 144 (2), 04018004 (2018)

30 Kyeo-reh Park, Keon-hee Kim, Sehyun Kwak, J. Svensson, J.H. Lee and Y.-c. Ghim
Feasibility study of direct spectra measurements for Thomson scattered signals for KSTAR fusion-grade plasmas

Journal of Instrumentation, 12, C11022 (2017)

29 Keon-hee Kim, Tae-suk Oh, Kyeo-reh Park, J.H. Lee and Y.-c. Ghim
Estimation of reliable range of electron temperature measurements with sets of given optical bandpass filters for KSTAR Thomson scattering system based on synthetic Thomson data

Journal of Instrumentation 12, C11020 (2017)

28 A. Kirk et al.
Overview of recent physics results from MAST

Nucl. Fusion 57, 102007 (2017)

27 H. Jhang, Y.-c. Ghim, Z.-x. Wang, J.M. Kwon and. N. Tamura
Summary of the 6th Asia-Pacific transport working group (APTWG) meeting

Nucl. Fusion 57, 087002 (2017)

26 G. J. Colyer, A. A. Schekochihin, F. I. Parra, C. M. Roach, M. A. Barnes, Y.-c. Ghim and W. Dorland
Collisionality scaling of the electron heat flux in ETG turbulence

Plasma Phys. Control. Fusion 59, 055002 (2017)

25 M. F. J. Fox, A. R. Field, F. van Wyk, Y.-c. Ghim, A. A. Schekochihin and the MAST Team
Experimental determination of the correlation properties of plasma turbulence using 2D BES systems

Plasma Phys. Control. Fusion 59, 044008 (2017)

24 M. F. J. Fox, F. van Wyk, A. R. Field, Y.-c. Ghim, F. I. Parra, A. A. Schekochihin and the MAST Team
Symmetry breaking in MAST plasma turbulence due to toroidal flow shear

Plasma Phys. Control. Fusion  59, 034002 (2017)

23 Sehyun Kwak, J. Svensson, M. Brix, Y.-c. Ghim and JET Contributors
Bayesian electron density inference from JET lithium beam emission spectra using Gaussian processes

Nucl. Fusion 57, 036017 (2017)

22 K.C. Lee, J.-W. Juhn, Y.U. Nam, Y.S. Kim, S.W. Kim and Y.-c. Ghim
The design of two color interferometer system for the 3-dimensional analysis of plasma density evolution on KSTAR

Fusion Eng. Des. 113, 87 (2016)

21 H.H. Lee, J. Seol, W.H. Ko, L. Terzolo, A.Y. Aydemir, Y. In, Y.-c. Ghim and S. G. Lee
Effects of neoclassical toroidal viscosity induced by the intrinsic error fields and toroidal field ripple on the toroidal rotation in tokamaks

Phys. Plasmas 23, 082510 (2016)

20 Jaewook Kim, Y.U. Nam, M. Lampert and Y.-c. Ghim
Reliability of the two-point measurement of the spatial correlation length from Gaussian-shaped fluctuating signals in fusion-grade plasmas

Nucl. Fusion 56, 106016 (2016)

19 Jaewook Kim, M.F.J. Fox, A.R. Field, Y.U. Nam and Y.-c. Ghim
Conditions for generating synthetic data to investigate characteristics of fluctuating quantities

Comput. Phys. Commun. 204, 152 (2016)

18 Tae-suk Oh, K.H. Kim, J.H. Lee, S.H. Lee, R. Scannell, A.R. Field, K. Cho, M.S. Bawa'aneh and Y.-c. Ghim
Quantifying noise sources in the KSTAR 2014 Thomson Scattering system from the measured variation on electron temperature

J. Instrum. 11, C03036 (2016)

17 X. Gao, Y.-c. Ghim, Y.W. Sun, Z. Gao, S. Inagaki, W. Chen, T. Zhang and Z.X. Wang
APTWG: The 5th Asia-Pacific Transport Working Group Meeting

Nucl. Fusion 56, 038001 (2016)

16 Sehyun Kwak, J. Svensson, M. Brix, Y.-c. Ghim and JET Contributors
Bayesian modelling of the emission spectrum of the JET Li-BES system

Rev. Sci. Instrum. 87, 023501 (2016)

15 H.Y. Lee, S.H. Hahn, Y.-c. Ghim, J.G. Bak, J.H. Lee, W.H. Ko, K.D. Lee, S.H. Lee, H.H. Lee, J.-W. Juhn, H.S. Kim, S.W. Yoon, H.Han, J.H. Hong, J.H. Jang, J.S. Park and Wonho Choe
Edge localized mode characteristics during edge localised mode mitigation by supersonic molecular beam injection in Korea Superconducting Tokamak Advanced Research

Phys. Plasmas 22, 122512 (2015)

14 I.T. Chapman et al.
Overview of MAST results

Nucl. Fusion, 55, 104008 (2015)

13 H.-S. Kim, Y.M. Jeon, Y.-S. Na, Y.-c. Ghim, J.-W. Ahn, S.W. Yoon, J.G. Bak, Y.S. Bae, J.S. Kim, M. Joung, J.-H. Jeong, S.H. Hong, K.M. Kim, T. Suzuki, W.C. Kim, J.-G. Kwak and the KSTAR Team
Characteristics of global energy confinement in KSTAR L- and H-mode plasmas

Nucl. Fusion, 54, 083012 (2014)

12 Y.-c. Ghim, A. R. Field, A. A. Schekochihin, E. G. Highcock, C. Michael and the MAST Team
Local dependence of ion temperature gradient on magnetic configuration, rotational shear and turbulent heat flux in MAST

Nucl. Fusion, 54, 042003 (2014)

11 A. R. Field, D. Dunai, Y.-c. Ghim, P. Hill, B. McMillan, C. M. Roach, S. Saarelma, A. A. Schekochihin, S. Zoletnik and the MAST Team
Comparison of BES measurements of ion-scale turbulence with direct gyro-kinetic simulations of MAST L-moda plasmas

Plasma Phys. Control. Fusion, 56, 025012 (2014)

10 H. Meyer et. al.
Overview of physics results from MAST towards ITER/DEMO and the MAST Upgrade

Nucl. Fusion 53, 104008 (2013)

9 Y.-c. Ghim, A. A. Schekochihin, A. R. Field, I. Abel, M. Barnes, G. Colyer, S. C. Cowley, F. I. Parra, D. Dunai, S. Zoletnik and the MAST Team
Experimental Signatures of Critically Balanced Turbulence in MAST

Phys. Rev. Lett. 110, 145002 (2013)

8 Y.-c. Ghim, A. R. Field, D. Dunai, S. Zoletnik, L. Bardoczi, A. A. Schekochihin and the MAST Team
Measurement and physical interpretation of the mean motion of turbulent density patterns detected by the BES system on MAST

Plasma Phys. Control. Fusion 54, 095012 (2012)

7 A. R. Field, D. Dunai, R. Gaffka, Y.-c. Ghim, I. Kiss, B. Meszaros, T. Krizsanoczi, S. Shibaev and S. Zoletnik
BES turbulence imaging system for the MAST spherical tokamak

Rev. Sci. Instrum. 83, 013508 (2012)

6 B. Lloyd et. al.
Overview of physics results from MAST

Nucl. Fusion 51, 094013 (2011)

5 A. R. Field, C. Michael, R. J. Akers, J. Candy, G. Colyer, W. Guttenfelder, Y.-c. Ghim, C. M. Roach, S. Saarelma and the MAST Team
Plasma rotation and transport in MAST spherical tokamak

Nucl. Fusion 51, 063006 (2011)

4 Y.-c. Ghim, A. R. Field, S. Zoletnik and D. Dunai
Calculation of spatial response of 2D beam emission spectroscopy diagnostic on MAST

Rev. Sci. Instrum. 81, 10D713 (2010)

3 Y.-c. Ghim and N. Hershkowitz
Experimental verification of Boltzmann equilibrium for negative ions in weakly collisional electronegative plasmas

Appl. Phys. Lett. 94, 151503 (2009)

2 Y.-c. Ghim and N. Hershkowitz
Improved double planar probe data analysis technique

Rev. Sci. Instrum. 80, 033502 (2009)

1 N. Hershkowitz and Y.-c. Ghim
Probing plasmas with ion acoustic waves

Plasma Sources Sci. Technol. 18, 014018 (2009)