C. Sung, W. Peebles, C. Wannberg, T. Rhodes, X. Nguyen, R. Lantsov, L. Bardoczi, 
“A frequency tunable, eight-channel correlation ECE system for electron temperature turbulence measurements on the DIII-D tokamak,”
 21th Topical conference on High-Temperature Plasma Diagnostics, 2016. 

C. Sung, G. Wang, T. Rhodes, S. Smith, G. Staebler, E. Davis, M. Ono, D.  Eldon, R. Groebner, C. Chystal, W. Peebles, 
“Electron temperature fluctuations and comparison to TGLF model during RMP induced ELM suppression,”
 US Transport Taskforce (TTF) workshop, 2016.

C. Sung, G. Wang, T. Rhodes, W. Peebles,
“Electron temperature fluctuations changes associated with ELM suppression by RMP in DIII-D,”
57th Annual Meeting of the American Physical Society Division of Plasma Physics, 2015. 

C. Sung, A. E. White, N. T. Howard, D. Mikkelsen, C. Holland, J. Rice, M. Reinke, C. Gao, P. Ennever, M. Porkolab, R. Churchill, C. Theiler, J. Walk, J. Hughes, A. Hubbard, M. Greenwald, and the Alcator CMod team,
“Validation study of gyrokinetic simulation (GYRO) near the edge in Alcator C-Mod ohmic discharges,”
56th Annual Meeting of the American Physical Society Division of Plasma Physics, 2014. 

C. Sung, A. E. White, N. T. Howard, D. Mikkelsen, J. Irby, R. Leccacorvi, R. Vieira, C. Oi, J. Rice, M. Reinke, C. Gao, P. Ennever, M. Porkolab, R. Churchill, C. Theiler, J. Walk, J. Hughes, A. Hubbard, M. Greenwald, and the Alcator C- Mod team, 
 “Correlation ECE diagnostic in Alcator C-Mod: Explore LOC/SOC transition physics,”
Seminar to plasma research group in Seoul National University (invited), 2014. 

C. Sung, A. E. White, N. T. Howard, D. Mikkelsen, J. lrby, R. Leccacorvi, R. Vieira, C. Oi, J. Rice, M. Reinke, C. Gao, P. Ennever, M. Porkolab, R. Churchill, C. Theiler, J. Walk, J. Hughes, A. Hubbard, M. Greenwald, and the Alcator C- Mod team, 
“Correlation ECE diagnostic in Alcator C-Mod: Explore LOC/SOC transition physics,”
 Seminar to KSTAR group (invited), 2014. 

C. Sung, A. E. White, N. T. Howard, D. Mikkelsen, J. lrby, R. Leccacorvi, R. Vieira, C. Oi, J. Rice, M. Reinke, C. Gao, P. Ennever, M. Porkolab, R. Churchill, C. Theiler, J. Walk, J. Hughes, A. Hubbard, M. Greenwald, and the Alcator C- Mod team, 
“Correlation ECE diagnostic in Alcator C-Mod: Explore LOC/SOC transition physics,”
18th Joint Workshop on Electron Cyclotron Emission and Electron Cyclotron Resonance Heating, 2014.

C.  Sung, A. E. White, N. T. Howard, D. Mikkelsen, J. Rice, M. L. Reinke, C. Gao, P.  Ennever, M. Porkolab, R. Churchill, C. Theiler, J. Walk, J.  Hughes, A. Hubbard, M. Greenwald and the C-Mod team, 
“Changes in turbulence and transport across the ohmic confinement transition,” 
International Sherwood Fusion Theory Conference, 2014. 

C. Sung, A. E. White, N. T. Howard, D. Mikkelsen, J. Rice, M. L. Reinke, C. Gao, P. Ennever, M. Porkolab, R. Churchill, C. Theiler, J. Walk, J. Hughes, A. Hubbard, M. Greenwald and C-Mod team, 
“Studies of the Ohmic Confinement transition through Turbulence Measurements and Comparison with Gyrokinetic Simulations,” 
55th Annual Meeting of the American Physical Society Division of Plasma Physics, 2013.

C. Sung, A. E. White, N. T. Howard, C. Y. Oi, J. E. Rice, M. L. Reinke, C. Gao, P. Ennever, M. Porkolab, F. Parra, D. Mikkelsen, D. Ernst, J. Walk, J. W. Hughes, J. H. Irby, C. Kasten, A. E. Hubbard, M. Greenwald and C-Mod team,
“Study of Ohmic Energy Confinement transition through Core Electron Temperature Fluctuation Measurements and Gyrokinetic Analyses in Alcator C- Mod,”
Seminar to ASDEX-U group (invited), 2013. 

C. Sung, A. E. White, N. T. Howard, C. Y. Oi, J. E. Rice, M. L. Reinke, C. Gao, P.  Ennever, M. Porkolab, F. Parra, D. Mikkelsen, D. Ernst, J. Walk, J. W. Hughes, J. H. Irby, C. Kasten, A. E. Hubbard, M. Greenwald and C-  Mod team, 
“Study of Ohmic Energy Confinement transition through Fluctuation Measurements and Gyrokinetic Analyses in Alcator C-Mod,” 
U.S.-E.U. Joint Transport Task Force Workshop, 2013.

C. Sung, A. E. White, N. T. Howard, C. Y. Oi, J. Rice, M. Reinke, C. Gao, J. Walk, J. Hughes, A. Hubbard, P. Ennever, M. Porkolab, M. Greenwald and C-Mod team, 
“First Measurements of Core Electron Temperature Fluctuations    in Alcator C-Mod via Correlation ECE,” 
54th Annual Meeting of the American Physical Society Division of Plasma Physics, 2012. 

C. Sung, A. E. White, J. Irby, R. Vieira, R. Leccacorvi, C. Y. Oi, W. A. Peebles, X. Nguyen, 
“Correlation Electron Cyclotron Emission Diagnostic for Alcator C- Mod: Design and First Results,” 
19th Topical Conference High Temperature Plasma Diagnostics, 2012. 

C. Sung, A. E. White, J. Irby, R. Vieira, R. Leccacorvi, B. Labombard, J.  Gob, W. A. Peebles, X. Nguyen, 
“New Correlation Electron Cyclotron Emission Temperature Fluctuation Diagnostic for Alcator C-Mod,”
 53nd Annual Meeting of the American Physical Society Division of Plasma Physics, 2011. 

 Choongki Sung, Y. S. Park, Hyunyeong Lee, J. Kang and Y. S. Hwang, 
 “Development of Continuous Plasma Merging Scenario for Start-up and Formation of Spherical Tokamak Plasmas,” 
 51st Annual Meeting of the American Physical Society Division of Plasma Physics, 2009.

Choongki Sung, Y. S. Park, Hyunyeong Lee, J. Kang, Jwasoon Kim and Y. S. Hwang, 
“Design of Spherical Tokamak in SNU,”
 Fall annual conference of the Korean Physics Society, 2009. 

Choongki Sung, Y. S. Park, Hyunyeong Lee, J. Kang and Y. S. Hwang, 
“Design of Spherical Tokamak Operated by Partial Solenoids,”
Spring annual conference of the Korea Physics Society, 2009. 

Choongki Sung, J. M. Choi, Sun-ho Kim, K. H. Kim and Y. S. Hwang, 
“Experimental Study on Characteristics of Magnetized Plasma by Modified Nagoya-III Antenna,” 
36th winter annual conference of the Korea Vacuum Society, 2009.