Results 31 to 40 of about 302,060 (167)

Progress towards high-performance, steady-state spherical torus [PDF]

, 2003
Research on the spherical torus (or spherical tokamak) (ST) is being pursued to explore the scientific benefits of modifying the field line structue fro that in more moderate aspect ratio devices.
Wilgen, J, Grisham, LR, Taylor, G, Phillips, CK, Efthimion, PC, Carter, MD, Gray, T, Menard, J, Kaita, R, Stutman, D, Rosenberg, A, Ono, M, Takase, Y, Soukhanovskii, V, Fredrickson, ED, Timberlake, J, Xu, X, Swain, DW, Nishino, N, Heidbrink, W, Majeski, R, Raman, R, Garstka, GD, Zweben, SJ, Lewicki, BT, Akers, R, Tritz, KL, Synakowski, E, Davis, W, Kissick, MW, Deng, B, Paoletti, F, Kim, JH, Ferron, JR, Bigelow, T, Von Halle, A, Neumeyer, C, Kessel, C, Blagojevic, B, Stevenson, T, Nelson, BA, Paul, SF, Bialek, JM, Choe, W, Ramakrishnan, S, Johnson, DW, Williams, M, Manickam, J, Schaffer, M, Bell, RE, Doerner, R, Kaye, SM, Bell, MG, Lee, K, Ostrander, CN, Redi, M, Medley, SS, LeBlanc, BP, Darrow, DS, Peng, Y-KM, Chrzanowski, J, Park, HK, Luckhardt, S, Mueller, D, Pinsker, R, Sontag, AC, Unterberg, EA, Wilson, JR, Bonoli, PT, Gates, DA, Boedo, J, Bush, C, Beiersdorfer, P, Kubota, S, Hoffman, D, Bitter, M, Jarboe, TR, Tang, X, Schooff, RJ, Hill, KW, Fonck, RJ, Roquemore, AL, Probert, PH, Ryan, PM, Bourdelle, C, Lee, SG, Barry, RE, Maingi, R, Mau, TK, Park, W, Kugel, HW, Spaleta, J, Diem, SJ, Blanchard, W, Mazzucato, E, Pacella, D, Seraydarian, R, Sabbagh, SA, Skinner, CH, Maqueda, R   +99 more
core   +1 more source

Neutral Beam Coupling with Plasma in a Compact Fusion Neutron Source

Applied Sciences, 2022
FNS-ST is a fusion neutron source project based on a spherical tokamak (R/a = 0.5 m/0.3 m) with a steady-state neutron generation of ~1018 n/s. Neutral beam injection (NBI) is supposed to maintain steady-state operation, non-inductive current drive and ...
Eugenia Dlougach, Alexander Panasenkov, Boris Kuteev, Arkady Serikov   +3 more
doaj   +1 more source

Indoor UAV for Nuclear Investigation: Experimental Qualification and Field Feedback

Journal of Field Robotics, EarlyView.
ABSTRACT Indoor Unmanned Aerial Vehicles (UAVs) have recently gained interest for inspection and investigation tasks in hazardous environments. In the nuclear field, indoor UAVs offer promising capabilities to reduce workers' exposure to ionizing radiation while accessing confined or elevated areas.
Jérémy Seyssaud, Marie Cuozzo, Julien Favrichon, Benjamin Catania, Eric Cantrel, Tadec Marraine, Jérôme Boch   +6 more
wiley   +1 more source

Experimental scaling of compressional Alfvén eigenmode stability

Nuclear Fusion
Both co-propagating and counter-propagating compressional Alfvén eigenmodes (CAE) are relatively ubiquitous in NSTX plasmas with toroidal field strengths of ⩽4.65 kG, but are largely absent in the NSTX-U plasmas with toroidal fields of 5.7–5.9 kG.
E.D. Fredrickson
doaj   +1 more source

Fusion Energy and Tritium Fuel Cycle: Hydrogen Isotope Separation Technologies and Sorbent Materials

Small Methods, Volume 10, Issue 20, 26 October 2026.
This review surveys sorbent‐based materials for hydrogen isotope separation, a key challenge in fusion fuel processing. Different types of adsorbents are compared in terms of selectivity, kinetics, and operational practicality. Limitations of cryogenic operation and tritium compatibility are highlighted, providing guidance toward efficient, low tritium
Pankaj Sharma, Lawrence Shere, Rosemary Brown   +2 more
wiley   +1 more source

Micro-tearing modes in spherical and conventional tokamaks [PDF]

, 2020
The onset and characteristics of Micro-Tearing Modes (MTM) in the core of spherical (NSTX) and conventional tokamaks (ASDEX Upgrade and JET) are studied through local linear gyrokinetic simulations with gyro [J. Candy and E. Belli, General Atomics Report
T Fülöp, A Mollén, I Pusztai, S Moradi, W Guttenfelder   +4 more
core  

Global gyrokinetic simulations of kinetic ballooning mode in NSTX-U plasmas

Nuclear Fusion
Understanding the kinetic ballooning mode (KBM) is crucial for optimizing plasma performance in high- β spherical tokamaks. Global gyrokinetic simulations of KBMs in a projected NSTX-U shot are presented using realistic magnetic geometry and plasma ...
Tajinder Singh, Tariq Rafiq, Eugenio Schuster, Zhihong Lin, Animesh Kuley   +4 more
doaj   +1 more source

Inferring the scrape-off layer heat flux width in a divertor with a low degree of axisymmetry

Nuclear Materials and Energy
Plasma facing components (PFCs) in the next generation of tokamak devices will operate in challenging environments, with heat loads predicted to exceed 10 MW/m2. The magnitude of these heat loads is set by the width of the channel, the ‘scrape-off layer’
C. Marsden, X. Zhang, M. Moscheni, T.K. Gray, E. Vekshina, A. Rengle, A. Scarabosio, M. Sertoli, M. Romanelli   +8 more
doaj   +1 more source

New Identification Approach and Methods for Plasma Equilibrium Reconstruction in D-Shaped Tokamaks

Mathematics, 2021
The paper deals with the identification of plasma equilibrium reconstruction in D-shaped tokamaks on the base of plasma external magnetic measurements.
Yuri V. Mitrishkin, Pavel S. Korenev, Artem E. Konkov, Valerii I. Kruzhkov, Nicolai E. Ovsiannikov   +4 more
doaj   +1 more source

Kelvin–Helmholtz Spectral Redistribution by Flow and Density Structure at the Dusk Dayside Magnetopause

Journal of Geophysical Research: Space Physics, Volume 131, Issue 10, October 2026.
Abstract We study the development of the Kelvin‐Helmholtz instability (KHI) along the dusk dayside Earth's magnetopause with and without the presence of enhanced plasma density at the shear interface. Using three‐dimensional MAGE global simulations, we establish general KHI growth rate diagrams, which depend sensitively on the transverse profiles of ...
G. Peyrichon, J.‐F. Ripoll, H. El‐Rabii, A. T. Michael, V. G. Merkin, M. Cosmides, K. Sorathia, F. R. Toffoletto, A. Y. Ukhorskiy   +8 more
wiley   +1 more source