Results 121 to 130 of about 5,819 (232)

Validation of a synthetic fast ion loss detector model for Wendelstein 7-X

Nuclear Fusion
We present the first validated synthetic diagnostic for fast ion loss detectors (FILDs) in the Wendelstein 7-X (W7-X) stellarator. This model has been developed on, and validated against experimental data from, a FILD provided by the National Institute ...
A. LeViness, S.A. Lazerson, A. Jansen van Vuuren, J. Rueda-Rueda, M. Beurskens, S. Bozhenkov, K.J. Brunner, O.P. Ford, G. Fuchert, M. Garcìa-Muñoz, M. Isobe, C. Killer, J. Knauer, K. Ogawa, N. Pablant, E. Pasch, P. Poloskei, T. Romba, the W7-X Team   +18 more
doaj   +1 more source

Nonlinear excitation of energetic particle-induced geodesic acoustic mode via resonance overlap in CFQS

Nuclear Fusion
Energetic particle (EP) driven instabilities are investigated in the Chinese First Quasi-axisymmetric Stellarator using the hybrid kinetic-magnetohydrodynamic code MEGA.
Zhe Chen, Hao Wang, Haijun Ren, Yasushi Todo, Jiangyue Han, Jialei Wang, CFQS Team   +6 more
doaj   +1 more source

COIL DESIGN FOR HELIAC, A HELICAL AXIS STELLARATOR

, 1984
On décrit un stellarator à axe hélicoïdal (Héliac) pour le confinement de plasma à Béta élevé. On présente un projet préliminaire et l'analyse des forces et contraintes.A proposed Helical Axis Stellarator (Heliac) for High-Beta plasma confinement is ...
P. Materna, P. Heitzenroeder, K.L. Lee
core   +1 more source

Energetic particle loss under the effects of the radial electric field in LHD

Nuclear Fusion
The impact of the radial electric field $({E_{\text{r}}})$ on the confinement of energetic particles (EPs) in the Large Helical Device is studied through gyrokinetic simulation.
Ethan Green, Wataru Hayashi, Xishuo Wei, Zhihong Lin, Hiroyuki Yamaguchi, Masaki Osakabe, Hideo Nuga, Kunihiro Ogawa, Ryosuke Seki, Mitsutaka Isobe, Yasuko Kawamoto, Akihiro Shimizu, Takeshi Ido, Masaki Nishiura   +13 more
doaj   +1 more source

Stellar magnetism

Stellar Magnetism affects all spectral types and exists and varies throughout the evolution of stars. Magnetic fields can affect not only the interior of stars, but also their circumstellar environments. In this chapter, we concentrate on the magnetic fields that can be measured at the surface of stars through the influence of the Zeeman effect on ...
Petit, Veronique, Oksala, Mary E.
openaire   +2 more sources

Characterisation of a hydraulic insulating break prototype for ultrapure cooling water circuit of high voltage components for nuclear fusion experiments [PDF]

, 2011
Oggetto di questa tesi è la caratterizzazione del prototipo di un isolatore idraulico (passante idraulico o break) che avrà lo scopo di addurre acqua ultrapura (avente resistività maggiore di 2 Mohm*cm) per il raffreddamento di componenti in alta ...
Crivellari, Diego
core  

A Newcomer: The Wendelstein 7-X Stellarator

, 2016
Stellarators (“star generators”) belong to the earliest concepts for magnetic confinement of fusion plasmas. In May 1951, a confidential report authored by Lyman Spitzer at the Princeton Plasma Physics Laboratory (PPPL) was issued, in which he proposed ...
Klinger, T., Thomas Klinger
core   +1 more source

Modelling of the effect of particle species on beam losses in W7-X

Nuclear Fusion
In Wendelstein 7-X (W7-X), future campaigns will include H, D and He as both NBI injection and target plasmas but, so far, only H injection and target plasmas have been extensively performed.
L. Sanchis, T. Kurki-Suonio, K. Särkimäki, P. Ollus, J. Kontula, S. Äkäslompolo, S. Lazerson, S. Bozhenkov, H.M. Smith, the W7-X Team   +9 more
doaj   +1 more source

A compact stellarator-tokamak hybrid

Tokamaks and stellarators are the leading two magnetic confinement devices for producing fusion energy, begging the question of whether the strengths of the two could be merged into a single concept. To meet this challenge, we propose a first-of-its kind
Plunk, G. G., Henneberg, S. A.
core   +1 more source

Recent advances in plasma control and physics research in the Large Helical Device

Nuclear Fusion
The Large Helical Device (LHD), the largest superconducting helical system in the world, is equipped with advanced heating and diagnostic tools, facilitating plasma control and physics research.
K. Tanaka, K. Ida, Y. Morishita, H. Ohtani, D. Medina Roque, T. Tokuzawa, N. Kenmochi, T. Kinoshita, K. Toi, S. Murakami, H. Funaba, R. Ichikawa, M. Yokoyama, G. Ueno, K. Ogawa, N. Ohno, A. Kageyama, K.J. McCarthy, I. García-Cortés, N. Tamura, F. Nespoli, R. Lunsford, M. Shohji, S. Masuzaki, C. Suzuki, A. Mollen, M. Yoshinuma, M. Goto, Y. Kawamoto, T. Kawate, I. Yamada, T. Nasu, T. Kobayashi, K. Itoh, Y. Mizuno, R. Yasuhara, H. Uehara, D.J. DenHartog, Y. Takemura, H. Igami, R. Yanai, T. Takeuchi, T. Yokoyama, O. Osakabe, S. Morita, A. Shimizu, M. Nishiura, N. Pablant, D.A. Spong, H. Nuga, K. Nagaoka, Y. Katoh, R. Sakamoto, H. Yamada, LHD Experiment Group   +54 more
doaj   +1 more source