Results 11 to 20 of about 69,287 (288)

Elements of H-mode pedestal structure

Plasma Physics and Controlled Fusion, 2023
Abstract This paper reviews current understanding of key physics elements that control the H-mode pedestal structure, which exists at the boundary of magnetically confined plasmas. The structure of interest is the width, height and gradient of temperature, density and pressure profiles in the pedestal. Emphasis is placed on understanding
R J Groebner, S Saarelma
openaire   +3 more sources

Impact of the new TCV baffled divertor upgrade on pedestal structure and performance

Nuclear Materials and Energy, 2021
A new set of carbon tiles, neutral beam heating optics and gas baffles were installed on TCV during the baffled divertor upgrade in early 2019. The installation of the baffles allows a deconvolution of the roles of main chamber and divertor neutral ...
U.A. Sheikh, M. Dunne, L. Frassinetti, B. Labit, P. Blanchard, B.P. Duval, O. Février, D. Galassi, A. Merle, H. Reimerdes, C. Theiler   +10 more
doaj   +3 more sources

Pedestal and Peak Structure in Jet Correlation [PDF]

Physical Review C, 2005
We study the characteristics of correlation between particles in jets produced in heavy-ion collisions. In the framework of parton recombination we calculate the $\eta$ and $\phi$ distributions of a pion associated with a trigger particle.
B. Jacak, C. A. Gagliardi, Charles B. Chiu, D. Magestro, Rudolph C. Hwa   +4 more
core   +3 more sources

Prediction of the kinetic profiles in H-mode plasma discharges on EAST using core-pedestal coupling [PDF]

Scientific Reports
The physical processes in tokamak plasma are strongly related to the coupling between the core and the pedestal. The accurate prediction of the kinetic profiles (electron temperature and density) from the pedestal to the core lays the physics basis for ...
Chaotong Yang, Kai Li, Guoqiang Li, Yanjie Yang, Xiang Jian, Lin Yu, Tao Zhang, Qing Zang, Haiqing Liu, Xin Lin, Jilei Hou   +10 more
doaj   +2 more sources

Pedestal Structure Model

Physical Review Letters, 2012
Predictions are developed for gradients and profiles of the electron density and temperature in tokamak H-mode pedestals that are in transport quasiequilibrium. They are based on assuming paleoclassical processes provide the irreducible minimum radial plasma transport and dominate in the steep gradient regions of pedestals.
J D, Callen, J M, Canik, S P, Smith
openaire   +5 more sources

Study of the effect of the pedestal density profiles on the pedestal structure in EAST

Nuclear Fusion
Additional particle control methods, such as gas puffing, may lead to changes in the ratio between the separatrix electron density and the pedestal electron density ( $n_{\text{e}}^{{\text{sep}}}/n_{\text{e}}^{{\text{ped}}}$ ), and lead to the relative ...
Yanjie Yang, Kai Li, Tengfei Tang, Xiaoju Liu, Kangning Geng, Gongshun Li, Kedong Li, Xin Lin, Qing Zang, Xiaohe Wu, Haochen Fan, Wenjie Zhou, Xiang Gao, Guoqiang Li   +13 more
doaj   +2 more sources

Chlamydia trachomatis TmeA promotes pedestal-like structure formation through N-WASP and TOCA-1 interactions [PDF]

mSphere
Chlamydia trachomatis (C.t.) is the causative agent of several human diseases, including the sexually transmitted infection chlamydia and the eye infection trachoma.
Alix McCullough, C. A. Jabeena, Steve Huang, Brianna Steiert, Robert Faris, Mary M. Weber   +5 more
doaj   +2 more sources

Low collisionality, peeling limited pedestals in JET-ILW: effect of density and isotope mass on pedestal structure, pedestal stability and pedestal prediction in deuterium and mixed deuterium/tritium plasmas

Nuclear Fusion
Pedestals limited by peeling instabilities have been reached in JET-ILW by operating at high ${q_{95}}$ , up to ${q_{95}} = 8.5$ . The increase in ${q_{95}}$ via the increase of the toroidal field has stabilized the ballooning modes and has allowed to ...
L. Frassinetti, D. King, S. Saarelma, D. Keeling, C. Perez von Thun, C. Giroud, S. Wiesen, A. Kappatou, N. Vianello, E. Alessi, M. Brix, I.S. Carvalho, P. Carvalho, A. Chomiczewska, J.M. Fontdecaba, E. Giovannozzi, D. Kos, E. Kowalska, B. Labit, M. Lennholm, M. Maslov, A. Meigs, S. Menmuir, R.B. Morales, H. Nyström, E. Pawelec, G. Pucella, D. Silvagni, A. Stagni, H.J. Sun, JET Contributors, the EUROfusion Tokamak Exploitation Team   +31 more
doaj   +3 more sources

Comparing pedestal structure in JET-ILW H-mode plasmas with a model for stiff ETG turbulent heat transport. [PDF]

Philos Trans A Math Phys Eng Sci, 2023
Field AR, Chapman-Oplopoiou B, Connor JW, Frassinetti L, Hatch DR, Roach CM, Saarelma S, JET contributors.   +7 more
europepmc   +2 more sources

Impact of shape and global β on ASDEX Upgrade pedestal structure

Nuclear Fusion
The stability and confinement of the pedestal, the outermost region of the confined plasma in a tokamak, are crucial for its efficient operation and performance.
L. Radovanovic, E. Wolfrum, M.G. Dunne, G.F. Harrer, F. Aumayr, the ASDEX Upgrade Team   +5 more
doaj   +3 more sources