Results 61 to 70 of about 141,584 (298)

Partition Functions and Mass Action Constants of Plasmas of Light Elements at Higher Temperatures

Contributions to Plasma Physics, Volume 65, Issue 7, August 2025.
ABSTRACT We first analyze the relations between the work of Planck and Klimontovich and show that Klimontovich's kinetic theory of non‐ideal plasmas confirms Planck's partition function for the hydrogen plasma. We discuss and check the Planck‐Brillouin‐Larkin (PBL) expressions for Hydrogen with PIMC calculations and derive new partition functions and ...
Werner Ebeling, Gerd Röpke
wiley   +1 more source

HEAT simulation and IR data comparison for ST40 plasma-facing components

Nuclear Materials and Energy
The Heat Flux Engineering Analysis Toolkit (HEAT) (Looby et al., 2022) was used to simulate the heat flux, qtarget, on ST40 molybdenum divertors. Results were compared with experimental infrared (IR) data.
E.J.C. Tinacba, T.K. Gray, M. Moscheni, C. Marsden, E. Vekshina, O. Asunta, P. Bunting, S. McNamara, A. Rengle, T. Looby, E.A. Unterberg   +10 more
doaj   +1 more source

Environmental dose rate assessment of ITER using the Monte Carlo method [PDF]

Nuclear Technology and Radiation Protection, 2014
Exposure to radiation is one of the main sources of risk to staff employed in reactor facilities. The staff of a tokamak is exposed to a wide range of neutrons and photons around the tokamak hall.
Karimian Alireza, Beheshti Amir, Abdi Mohammadreza, Jabbari Iraj   +3 more
doaj   +1 more source

Fast and Invertible Simplicial Approximation of Magnetic‐Following Interpolation for Visualizing Fusion Plasma Simulation Data

Computer Graphics Forum, Volume 44, Issue 3, June 2025.
Abstract We introduce a fast and invertible approximation for fusion plasma simulation data represented as 2D planar meshes with connectivities approximating magnetic field lines along the toroidal dimension in deformed 3D toroidal spaces. Scientific variables (e.g., density and temperature) in these fusion data are interpolated following a complex ...
Congrong Ren, Robert Hager, Randy Michael Churchill, Albert Mollén, Seung‐Hoe Ku, Choong‐Seock Chang, Hanqi Guo   +6 more
wiley   +1 more source

Dust remobilization from rough planar surfaces in tokamak steady-state plasmas

Nuclear Materials and Energy, 2018
The ability of tungsten (W) dust to be remobilized from rough tokamak plasma-facing surfaces is investigated in this study. Atomic Force Microscopy is used to evaluate the adhesion force distribution between W spheroids of ∼1−10 µm radius and a rough W ...
A. Autricque, S. Peillon, F. Gensdarmes, M. Sow, N. Fedorczak, H. Roche, O. Pluchery, C. Grisolia   +7 more
doaj   +1 more source

Self‐Organized Growth of Catalyst‐Free Single Crystal WnO3n‐2 (n = 25) Nanowire Bundles on Si (111) via Selective He+ Ion Irradiation

Advanced Materials Interfaces, Volume 12, Issue 10, May 19, 2025.
A novel and efficient method is explored to synthesize 1D single‐crystal sub‐stoichiometric WnO3n‐2 (n = 25) nanowire bundles. The approach utilizes selective low‐energy He+ ion irradiation (27 eV) on Mo‐Ni doped WOx surface, achieving efficient catalyst‐free self‐organized growth of high aspect ratio nanowires at the temperature of 700 °C.
Maryna Bilokur, Matt Thompson, Matthew Arnold, Cormac Corr   +3 more
wiley   +1 more source

Overview of recent results from the ST40 compact high-field spherical tokamak

Nuclear Fusion
ST40 is a compact, high-field ( $B_{\mathrm{T0}}\unicode{x2A7D} 2.1\,\,\,\textrm{T}$ ) spherical tokamak (ST) with a mission to expand the physics and technology basis for the ST route to commercial fusion.
S.A.M. McNamara, A. Alieva, M.S. Anastopoulos Tzanis, O. Asunta, J. Bland, H. Bohlin, P.F. Buxton, C. Colgan, A. Dnestrovskii, E. du Toit, M. Fontana, M. Gemmell, M.P. Gryaznevich, J. Hakosalo, M.R. Hardman, D. Harryman, D. Hoffman, M. Iliasova, S. Janhunen, F. Janky, J.B. Lister, H.F. Lowe, E. Maartensson, C. Marsden, S.Y. Medvedev, S.R. Mirfayzi, M. Moscheni, G. Naylor, V. Nemytov, J. Njau, T. O’Gorman, D. Osin, T. Pyragius, A. Rengle, M. Romanelli, C. Romero, M. Sertoli, V. Shevchenko, J. Sinha, A. Sladkomedova, S. Sridhar, J. Stirling, Y. Takase, P.R. Thomas, J. Varje, E. Vekshina, B. Vincent, H.V. Willett, J. Wood, E. Wooldridge, D. Zakhar, X. Zhang, D. Battaglia, N. Bertelli, P.J. Bonofiglo, L.F. Delgado-Aparicio, V.N. Duarte, N.N. Gorelenkov, M. de Haas, S.M. Kaye, R. Maingi, D. Mueller, M. Ono, M. Podesta, Y. Ren, S. Trieu, E. Delabie, T.K. Gray, B. Lomanowski, E.A. Unterberg, O. Marchuk, the ST40 Team   +71 more
doaj   +1 more source

Linear plasma device GyM for plasma-material interaction studies

Frontiers in Physics, 2023
GyM is a linear plasma device operating at Istituto per la Scienza e Tecnologia dei Plasmi, Consiglio Nazionale delle Ricerche, Milan, with the original aim of studying basic plasma physics, such as turbulent processes.
Andrea Uccello, William Bin, Alessandro Bruschi, Federica Causa, Anna Cremona, Marco De Angeli, Daniela Farina, Giuseppe Gatto, Gabriele Gervasini, Francesco Ghezzi, Giuseppe Gittini, Gustavo Granucci, Giovanni Grosso, Laura Laguardia, Maurizio Lontano, Vittoria Mellera, Daniele Minelli, Antonio Nardone, Matteo Pedroni, Federico Ripamonti, Natale Rispoli, Espedito Vassallo, Daria Ricci   +22 more
doaj   +1 more source

Asymptotic-preserving methods for an anisotropic model of electrical potential in a tokamak

, 2014
A 2D nonlinear model for the electrical potential in the edge plasma in a tokamak generates a stiff problem due to the low resistivity in the direction parallel to the magnetic field lines.
Angot, Philippe, Auphan, Thomas, Guès, Olivier   +2 more
core   +3 more sources

Comparing Risks for Binomial Reliability Assurance Test Planning

Applied Stochastic Models in Business and Industry, Volume 41, Issue 3, May/June 2025.
ABSTRACT Balancing consumer's and producer's risk is an important consideration when planning tests. Instead of focusing on finding a single best test plan, we introduce a general framework to systematically identify a set of binomial test plans by leveraging the inverse relationship between the two risks.
Hyoshin Kim, Alyson G. Wilson
wiley   +1 more source