Plasma Facing Component Characterization and Correlation With Plasma Conditions in Lithium Tokamak Experiment-β

Autor: Richard Majeski, E. Merino, Bruce E. Koel, Drew Elliott, P.E. Hughes, Robert Kaita, A. Maan, Evan Ostrowski, Dennis Boyle, David Donovan, Filippo Scotti, V. A. Soukhanovskii, T. M. Biewer, Robert Lunsford, T. A. Kozub

Publikováno v: IEEE Transactions on Plasma Science. 48:1463-1467

Lithium coatings in the Lithium Tokamak eXperiment (LTX) led to flat temperature profiles. The flat temperature profiles were observed along with a hot, low density edge, implying a broad, collisionless scrape-off layer (SOL). Additionally, in vacuo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8f0f328551caa48499ad6362eeace37e
https://doi.org/10.1109/tps.2020.2969115

Post exposure time dependence of deuterium retention in lithium and lithium compounds

Autor: Bruce E. Koel, Andrew Nelson, Robert Kaita, L. Buzi, Yuxin Yang

Publikováno v: Nuclear Materials and Energy, Vol 19, Iss, Pp 161-165 (2019)

Lithium (Li) coating of plasma-facing components (PFC) has led to improved plasma performance in fusion experiments due to the effectiveness of Li in retaining hydrogen (H) isotopes and thus reducing recycling. Since Li readily reacts with background

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::339541291ba60dc4f1e11b659a31cd90
https://doi.org/10.1016/j.nme.2019.01.031

Elemental and topographical imaging of microscopic variations in deposition on NSTX-U and DIII-D samples

Autor: C.P. Chrobak, Robert Kaita, Michael Jaworski, Bruce E. Koel, C.H. Skinner

Publikováno v: Nuclear Materials and Energy, Vol 18, Iss, Pp 35-40 (2019)

Tokamak plasma facing components have surface roughness that can cause microscopic spatial variations in erosion and deposition and hence influence material migration, erosion lifetime, dust and tritium accumulation, and plasma contamination. However

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c9f1ad96d5ef7990b574a985288c0ec8
https://doi.org/10.1016/j.nme.2018.12.001

NSTX-U theory, modeling and analysis results

Autor: Walter Guttenfelder, D J Battaglia, Elena Belova, Nicola Bertelli, Mark D Boyer, Choong Seock Chang, Ahmed Diallo, Vinicius N Duarte, Fatima Ebrahimi, Eric Emdee, N Ferraro, Eric Fredrickson, Nikolai N Gorelenkov, William W Heidbrink, Zeki Ilhan, Stanley M Kaye, Eun-Hwa Kim, Andreas Kleiner, Florian M. Laggner, Mate Lampert, Jeff Lestz, Chang Liu, Deyong Liu, Tom Looby, Noah Mandell, Rajesh Maingi, James R Myra, Stefano Munaretto, Mario Podesta, Tariq Rafiq, Roger Raman, Matthew Reinke, Yang Ren, Juan Ruiz Ruiz, Filippo Scotti, Syun'ichi Shiraiwa, Vlad Soukhanovskii, Patrick Vail, Zhirui Wang, Will P Wehner, Anne E White, Roscoe B White, Benjamin J Q Woods, James Yang, Stewart Zweben, Santanu Banerjee, Robert Barchfeld, Ronald E Bell, John Berkery, Amitawa Bhattacharjee, Andreas Bierwage, Gustavo Paganini Canal, Xiang Chen, Cesar Fernando Clauser, Neal A Crocker, C W Domier, Todd E Evans, Manaure Francisquez, Kaifu Gan, Stefan P Gerhardt, Robert James Goldston, Travis K Gray, Ammar Hakim, Gregory W Hammett, Stephen C Jardin, Robert Kaita, Bruce E Koel, Egemen Kolemen, Seung-Hoe Ku, Shigeyuki Kubota, Benoit P LeBlanc, Fred Levinton, Jeremy D Lore, Neville C Luhmann, R. Lunsford, Ricardo Maqueda, Jonathan E Menard, Jacob H Nichols, Masayuki Ono, Jong-Kyu Park, Francesca M Poli, Terry L Rhodes, Juan Riquezes, Dave A Russell, Steve A Sabbagh, Eugenio Schuster, David Smith, Daren P Stotler, Brentley Stratton, Kevin Tritz, Weixing Wang, Brian D Wirth

Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP

The mission of the low aspect ratio spherical tokamak NSTX-U is to advance the physics basis and technical solutions required for optimizing the configuration of next-step steady-state tokamak fusion devices. NSTX-U will ultimately operate at up to 2

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::da658a41081a6c68dca395062b7ae500
https://doi.org/10.1088/1741-4326/ac5448

Supersonic Gas Injector for Plasma Fueling in the National Spherical Torus Experiment

Autor: P. Sichta, Jonathan Menard, A. L. Roquemore, V.A. Soukhanovskii, T. Provost, J. K. Dong, Roger Raman, Robert Kaita, W. Blanchard, H.W. Kugel

Publikováno v: Fusion Science and Technology. 75:1-17

A supersonic gas injector (SGI) has been developed for fueling and diagnostic applications on the National Spherical Torus Experiment (NSTX). It is comprised of a graphite converging-diverging Laval nozzle and a commercial piezoelectric gas valve mou

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ec10fc2faf4749e0b4b4fd7ee277d3ce
https://doi.org/10.1080/15361055.2018.1502034