Results 41 to 50 of about 1,068 (190)

The upgraded Collective Thomson Scattering diagnostics of FTU

Fusion Engineering and Design, 2015
The 140 GHz Collective Thomson Scattering (CTS) diagnostics installed on the Frascati Tokamak Upgrade (FTU) has been upgraded. The new system now is ready both to detect the thermal CTS radiation (for the first time with the probe frequency below the 1st harmonic electron cyclotron resonance) and to study the impact of possible parametric decay ...
Bin W, Bruschi A, D'Arcangelo O, Grosso G, Lubiako L, Tartari U, Figini L, Garavaglia S, Grossetti G, Moro A, Orsitto F, Centioli C, Galperti C, Granucci G, Mellera V, Minelli D, Nardone A, Simonetto A, Vellucci M   +18 more
openaire   +4 more sources

Rare‐Earth Yttrium Doping Advances High‐Performance AgSbTe2 Thermoelectrics

Advanced Energy Materials, EarlyView.
Y‐doped AgSbTe2 achieves band and microstructure co‐optimization, with coherent Y‐Ag2Te interfaces enhancing phonon scattering and reducing lattice thermal conductivity to 0.26 W m−1 K−1. Combined with valence‐band broadening and increased carrier concentration, this yields ZT ≈ 2 at 623 K, average ZT = 1.5, and 7.3 % conversion efficiency of a single ...
Lan Li, Xiao‐Lei Shi, Min Zhang, Siqi Liu, Meng Li, Nanhai Li, Tianyi Cao, Boxuan Hu, Qingyi Liu, Raza Moshwan, Mahboobeh Shahbazi, Zhi‐Gang Chen   +11 more
wiley   +1 more source

Design of the collective Thomson scattering diagnostics for Large Helical Device using a quasi-optical frequency tunable gyrotron as a radiation source [PDF]

, 2002
Collective Thomson scattering technique based on high power laser has already proved its ability in measuring the ion (bulk and fast) temperature (Ti) in fusion plasma devices like tokamaks and stellarators.
R.PAVLICHENKO, IDEHARA, T, SATO, M, OGAWA, I, KAWAHATA, K   +4 more
core   +3 more sources

Characterisation of electron cyclotron wall conditioning plasma in ASDEX Upgrade

Nuclear Fusion, 2023
Electron cyclotron wall condition (ECWC) discharges are characterised in ASDEX Upgrade with full tungsten plasma facing components and X2 polarised waves launched from the equatorial ports, relevant to ECWC conditions in ITER Pre-Fusion Power Operation ...
T. Wauters, J. Buermans, J. Cavalier, E. Huett, R. Ragona, J. Svoboda, V. Bobkov, M. Griener, A.S. Jacobsen, A. Kallenbach, J. Likonen, T. Loarer, T. Lunt, S.K. Nielsen, R.A. Pitts, D. Ricci, V. Rohde, J. Stober, P. Schneider, M. Usoltseva, the ASDEX Upgrade Team, the EUROfusion MST1 Team   +21 more
doaj   +1 more source

Orientational Effects in the Low Pair Continuum of Aluminium

Contributions to Plasma Physics, EarlyView.
ABSTRACT We compare the predictions of the dynamic structure factor (DSF) of ambient polycrystalline aluminium from time‐dependent density functional theory (TDDFT) in the pair continuum regime to recent ultrahigh resolution x‐ray Thomson scattering measurements, collected at the European XFEL.
Thomas Gawne, Zhandos A. Moldabekov, Oliver S. Humphries, Motoaki Nakatsutsumi, Sebastian Schwalbe, Jan Vorberger, Ulf Zastrau, Tobias Dornheim, Thomas R. Preston   +8 more
wiley   +1 more source

New‐Generation Integrated Devices: Multiple‐Energy Utilization and Integration Systems Based on Perovskite Photovoltaics

EcoEnergy, EarlyView.
This review highlights emerging integrated energy systems based on perovskite photovoltaics, including PSC–thermoelectric, photovoltaic–electrochemical, self‐charging, and building‐integrated architectures. By coupling multiple energy conversion and storage pathways, these multifunctional platforms enable enhanced solar utilization, improved stability,
Yihuai Huang, Wenguang Zhang, Yuchen Xiong, Zijun Yi, Changkai Huang, Qinghui Jiang, Abdul Basit, Guibin Shen, Yubo Luo, Xin Li, Junyou Yang   +10 more
wiley   +1 more source

Velocity-space tomography of fusion plasmas by collective Thomson scattering of gyrotron radiation

, 2016
We propose a diagnostic capable of measuring 2D fast-ion velocity distribution functions 푓2퐷푣 in the MeV-range in magnetized fusion plasmas. Today velocity-space tomography based on fast-ion D훼 spectroscopy is regularly used to measure 푓2퐷푣 for ion ...
S.K. Nielsen, Madsen, Jens, Korsholm , S., J. Rasmussen, Jacobsen, A.S., Salewski, Mirko, Jacobsen, A., Moseev, D., Rasmussen, Jesper, S.B. Korsholm, Salewski, M., Nielsen, Stefan Kragh, Rasmussen, J., J. Madsen, D. Moseev, F. Leipold, Pedersen, Morten Stejner, Jensen, Thomas, Stejner, M., Madsen, J., Leipold, Frank, Leipold, F., A.S. Jacobsen, Jensen, T., T. Jensen, M. Stejner, M. Salewski, Nielsen, S., Korsholm, Søren Bang   +28 more
core   +1 more source

Flexible Direct‐Conversion X‐Ray Detectors: From Emerging Materials to Conformal Imaging

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This comprehensive review analyzed the performance, challenges, and future directions of four emerging material systems for next‐generation flexible direct‐conversion X‐ray detectors: organic semiconductors, perovskites, metal–organic frameworks, and inorganic metal compounds.
Haipeng Di, Guoliang Ma, Jiaxin Mu, Kailian Dong, Haibin Li, Manjing Wang, Xin Song, Haojin Li, Jianwei Xu, Yiying Zhao, Jingjing Zhao, Guojia Fang   +11 more
wiley   +1 more source

Core ion measurements with collective Thomson scattering for DEMO burn control

Nuclear Fusion
DEMO burn control will require measurements of a range of plasma parameters, but the suite of feasible diagnostics for this purpose is limited. Here we assess the accuracy with which a collective Thomson scattering (CTS) diagnostic can provide key ...
J. Rasmussen, S.B. Korsholm
doaj   +1 more source

Development Status and Trends of the ECH Technology for the Magnetic Confinement Fusion

南方能源建设
[Introduction] In magnetic confinement fusion research, electron cyclotron heating (ECH) and current drive means are widely implemented for applications including, but not limited to, plasma initiation, heating, non-inductive current drive, and ...
Donghui XIA, Jing LU, Xixuan CHEN, Xinyu FANG   +3 more
doaj   +1 more source