Results 41 to 50 of about 2,015 (219)

Fast-ion redistribution and loss due to edge perturbations in the ASDEX Upgrade, DIII-D and KSTAR tokamaks [PDF]

, 2013
The impact of edge localized modes (ELMs) and externally applied resonant and non-resonant magnetic perturbations (MPs) on fast-ion confinement/transport have been investigated in the ASDEX Upgrade (AUG), DIII-D and KSTAR tokamaks.
M. García-Muñoz, Rodríguez Ramos, Mauricio, Boom, J. E., Dux, R., García Muñoz, Manuel, Evans, T. E., Fuchs, C., DIII-D Team, Jeon, Y., Van Zeeland, M., Willensdorfer, M., Rodriguez-Ramos, M., Pace, D. C., Classen, I. G. J., Kim, J. Y., Nocente, M., Igochine, V., Garcia-Munoz, M., Shinohara, K., McDermott, R. M., Classen, I., Fietz, S., Hoelzl, M., Wolfrum, E., Rhodes, T. L., Fisher, R., Pace, D., Fisher, R. K., Rhodes, T., Lunt, T., McDermott, R., KSTAR Teams, Chen, X., Suttrop, W., Asunta, O., Hölzl, M., Evans, T., Viezzer, Eleonora, VanZeeland, M. A., Classen, I.G.J., Geiger, B., Kurzan, B., Kim, J., Viezzer, E., Jeon, Y. M., the ASDEX Upgrade, Äkäslompolo, S., Boom, J., Lazanyi, N.   +48 more
core   +1 more source

Status of the KSTAR Project

TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan), 2006
Synopsis: The KSTAR project was started in 1996 and conducted in three phases, the conceptual design phase (1996–1998), the R&D and engineering design phase (1998–2002), and the construction phase (2002–2007). The mission of the Korea Superconducting Tokamak Advanced Research (KSTAR) Project is to develop a steady-state-capable advanced superconducting
KIM, Keeman, OH, Yeong-Kook, BAK, Joo S., KWON, Myeun, LEE, Gyung-Su, the KSTAR team   +5 more
openaire   +2 more sources

Commissioning of 170 GHz, 1 MW EC H&CD in KSTAR

EPJ Web of Conferences, 2012
The newly installed electron cyclotron heating and current drive (EC H&CD) system with a frequency of 170 GHz was successfully commissioned and used for the second-harmonic ECH-assisted startup in 2011 operational campaign of the KSTAR.
Oda Y., Kajiwara K., Cho M.H., Park H., Namkung W., Kwon M., Kwak J. G., Yang H. L., Bae Y. S., Kim J. S., Han W. S., Kim H. J., Park S. I., Joung M., Sakamoto K., Jeong J. H., Hosea J., Ellis R., Doane J., Olstad R.   +19 more
doaj   +1 more source

Study of Synergetic Effect of X2 and X3 EC Wave in KSTAR

EPJ Web of Conferences, 2015
An experimental study of the X-mode absorption at the second and the third harmonic frequencies has been performed in KSTAR tokamak. The X2 EC frequency is 110 GHz and the X3 EC frequency is 170 GHz at the nominal KSTAR operating toroidal magnetic field.
Bae Y.S., Decker J., Jeong J.H., Lee K.D.   +3 more
doaj   +1 more source

Measurement of fast ion life time using neutron diagnostics and its application to the fast ion instability at ELM suppressed KSTAR plasma by RMP

Nuclear Engineering and Technology, 2019
The confinement degradation of the energetic particles during RMP would be a key issue in success of realizing the successful energy production using fusion plasma, because a 3.5 MeV energetic alpha particle should be able to sustain the burning plasma ...
Jong-Gu Kwak, M.H. Woo, T. Rhee
doaj   +1 more source

Study of off-axis current drive using EC top-launch in KSTAR [PDF]

EPJ Web of Conferences, 2019
The off-axis current drive using electron cyclotron (EC) wave is typically very low due to the low density and temperature and electron trapping effect when it is launched from outside midplane.
Bae Young-soon
doaj   +1 more source

Initial phase wall conditioning in KSTAR [PDF]

, 2011
The initial phase wall conditioning in KSTAR is depicted. The KSTAR wall conditioning procedure consists of vessel baking, glow discharge cleaning (GDC), ICRH wall conditioning (ICWC) and boronization (Bz).
Kyung-Min Kim, Hyung-Lyeol Yang, Eun-Kyung Park, Yeong-Kook Oh, Jong-Gu Kwak, Sang-Yong Lee, Kwang-Pyo Kim, Hak-Kun Kim, Sungwoo Kim, Sun-Jung Wang, Sang-Hwa Lee, Hyun-Jong Woo, Woong-Chae Kim, Suk-Ho Hong, Hoon-Kyun Na, Dong-Su Lee, Kyu-Sun Chung, Sang-Joon Park, Kap-Rai Park, Sun-Ho Kim, Jong-Su Kim, Kun-Su Lee, Jae-Yong Kim, Jong-Ho Sun, Jae-Min Park   +24 more
core   +1 more source

Demonstration of sawtooth period control with EC waves in KSTAR plasma

EPJ Web of Conferences, 2015
The sawtooth period control in tokamak is important issue in recent years because the sawtooth crash can trigger TM/NTM instabilities and drive plasmas unstable.
Jeong J. H., Bae Y. S., Joung M., Kim D., Goodman T. P., Sauter O., Sakamoto K., Kajiwara K., Oda Y., Kwak J. G., Namkung W., Cho M. H., Park H., Hosea J., Ellis R.   +14 more
doaj   +1 more source

Predicting Mechanical Properties of FDM‐Produced Parts Using Machine Learning Approaches

Journal of Applied Polymer Science, Volume 142, Issue 20, May 20, 2025.
ABSTRACT Additive manufacturing (AM), especially fused deposition modeling (FDM), has been widely used in industrial production processes in recent years. The mechanical properties of parts produced by FDM can be predicted through the correct selection of printing parameters.
Mahmut Özkül, Fatma Kuncan, Osman Ulkir   +2 more
wiley   +1 more source

2D/3D visualization of the ELMs with external perturbations (RMPs & SMBI) via the KSTAR ECEI system [PDF]

, 2013
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