Results 11 to 20 of about 1,777,078 (318)

Core size effects of laser fusion subcritical research reactor for fusion engineering research

, 2021
A multi-purpose high repetition laser facility, the so-called Japan establishment for power-laser community harvest (J-EPoCH) is proposed as a next generation laser facility. J-EPoCH will operate at the maximum rate of 100 Hz.
Kodama, Ryousuke, Iwamoto, Akifumi
core   +1 more source

Colorimetry in Nuclear Fusion Research

, 2022
0000-0001-5522-3082Colorimetry is a unique technique among research fields. The technique is also utilized in nuclear fusion research. The motivation is to evaluate the wide range of distribution of the deposition layer on the surface of the vacuum ...
MOTOJIMA, Gen, 66700
core   +1 more source

Long-pulse Plasma Discharges by Upgraded ECH System in the LHD

EPJ Web of Conferences, 2015
Until 2009, three high-power, over 1MW each, 77GHz gyrotrons have been installed and applied to the LHD experiment. In addition, a 154GHz gyrotron of 1MW was installed in 2012. The 77GHz gyrotrons suffer gradual increases of internal pressure during long-
Yoshimura Y., Kasahara H., Nagasaki K., Tokitani M., Ashikawa N., Ueda Y., Ito S., Kubo S., Shimozuma T., Igami H., Takahashi H., Nishiura M., Kobayashi S., Mizuno Y., Okada K., Ogasawara S., Makino R., Yamada I., Tokuzawa T., Tanaka K., Mutoh T., Yamada H.   +21 more
doaj   +1 more source

Constraints on Ion Velocity Distributions from Fusion Product Spectroscopy

, 2022
Recent inertial confinement fusion experiments have shown primary fusion spectral moments which are incompatible with a Maxwellian velocity distribution description. These results show that an ion kinetic description of the reacting ions is necessary. We
Hartouni, Edward, Mannion, O.M., Moore, A.S., Taitano, W., Mannion, Owen, Gatu-Johnson, Maria, Appelbe, B.D., Gatu Johnson, Maria, Crilly, Aidan, Appelbe, Brian, Chittenden, Jeremy, Moore, Alastair, Taitano, William, Hartouni, E.P., Chittenden, J.P., Crilly, A.J.   +15 more
core   +1 more source

FUSION RESIDUES [PDF]

Modern Physics Letters A, 1991
We discuss when and how the Verlinde dimensions of a rational conformal field theory can be expressed as correlation functions in a topological LG theory. It is seen that a necessary condition is that the RCFT fusion rules must exhibit an extra symmetry. We consider two particular perturbations of the Grassmannian superpotentials.
openaire   +3 more sources

Predicting the critical gradient of ITG turbulence in fusion plasmas [PDF]

, 2021
The quasilinear mixing-length approach to efficient prediction of transport in fusion devices is improved to account for the ``Dimits\u27\u27 upshift between linear and nonlinear critical pressure gradients in zonal-flow-saturated turbulence regimes ...
Li, P.Y., Pueschel, M.J., P.W. Terry, Terry, P.W., P.Y. Li, M.J. Pueschel   +5 more
core   +1 more source

KSTAR ECH System Development Progress [PDF]

EPJ Web of Conferences
The KSTAR ECH system has been upgraded to ensure steady-state advanced operation of KSTAR. The planned ECHs include a total of six 1 MW, 300 s ECH systems, of which four 105/140 GHz dual frequency systems have been commissioned and are being used in ...
Joung Mi, Wang Sonjong, Kim Sunggug, Han Jongwon, Rhee Inhyuk, Kwak Jonggu   +5 more
doaj   +1 more source

Development of high-performance long-pulse discharge in KSTAR

Nuclear Fusion, 2023
High-performance long-pulse plasma operation is essential for producing economically viable fusion energy in tokamak devices. To achieve such discharges in KSTAR, firstly, the rapid increase in the temperature of plasma-facing components was mitigated ...
Hyun-Seok Kim, YoungMu Jeon, Hyunsun Han, Kimin Kim, KwangPyo Kim, Heungsu Kim, Tongnyeol Rhee, Juhyung Kim, Junghee Kim, Dongcheol Seo, Eunnam Bang, Hee-Jae Ahn, Hyun-Sik Ahn, Jaesic Hong, Jinhyun Jeong, Jongdae Kong, Jong-Gu Kwak, Jongkook Jin, Jungyo Bak, Kaprai Park, Kyu-Dong Lee, Mi Joung, Sang Woo Kwag, Sang-Hee Hahn, SangKyeun Kim, Si-Woo Yoon, Sonjong Wang, Woong Chae Kim, Young-Ok Kim, KSTAR Teams   +29 more
doaj   +1 more source

Comparison between measurement and calculations for a 14 MeV neutron water activation experiment [PDF]

EPJ Web of Conferences, 2020
The nuclear heat loads due to gamma rays emitted from the decay of 16N and delayed neutrons from17N, generated by the activation of water in cooling circuits, are critical for ITER design. The assessment of nuclear heating from activated water is complex;
Andreoli F., Angelone M., Colangeli A., Besi Vetrella U., Fiore S., Flammini D., Del Prete P., Loreti S., Mariano G., Mazzitelli G., Moro F., Pagano G., Pietropaolo A., Pillon M., Terranova N., Villari R., Naish J., Nobs C.R., Packer L.W.   +18 more
doaj   +1 more source

Overview of recent turbulence studies across multiple confinement modes at the ASDEX Upgrade tokamak using the Correlation Electron Cyclotron Emission diagnostic [PDF]

EPJ Web of Conferences
This work presents an overview of recent and ongoing experimental measurements of core and edge turbulence across multiple confinement regimes using the Correlation Electron Cyclotron Emission (CECE) diagnostic at the ASDEX Upgrade (AUG) tokamak.
Yoo Christian, Bielajew Rachel, Vanovac Branka, Schellpfeffer Jacob, Burke Willy, Conway Garrard, Rodriguez-Fernandez Pablo, White Anne   +7 more
doaj   +1 more source