Results 51 to 60 of about 73,359 (212)

Comparative studies of various types of transmission lines in the frequency range 70 GHz 1 THz for ITER ECE diagnostic [PDF]

EPJ Web of Conferences, 2019
In ITER, an Electron Cyclotron Emission (ECE) diagnostic is planned to measure the electron temperature by measuring the cyclotron radiation in the frequency range of 70-1000 GHz.
Kumar Ravinder, Danani S., Pandya H.K.B., Vaghashiya P., Udintsev V.S., Taylor G., Austin M.E., Kumar Vinay   +7 more
doaj   +1 more source

Effect of Magnetic Islands on Neoclassical Heat Diffusivity in a Global Tokamak Simulation

Contributions to Plasma Physics, EarlyView.
ABSTRACT Resonant magnetic perturbations (RMPs) alter magnetic field topology via island formation and can modify core transport in toroidal fusion devices. Using the global gyrokinetic particle‐in‐cell code XGC‐S, originally developed for stellarator geometries, we quantify how island topology affects neoclassical heat transport in a circular tokamak ...
Joseph X. Li, Toseo Moritaka, Ryutaro Kanno, Gakushi Kawamura, Robert Hager, C.‐S. Chang   +5 more
wiley   +1 more source

Recent analysis of key plasma wall interactions issues for ITER [PDF]

, 2009
Plasma wall interaction (PWI) is important for the material choice in ITER and for the plasma scenarios compatible with material constraints. In this paper, different aspects of the PWI are assessed in their importance for the initial wall materials ...
Fusion for Energy, Lipschultz, B., Federici, G., Alimov, V., Loarer, T., Neu, R., Lehnen, M., Schmid, K., Loarer, Th., Kirschner, A., Brezinsek, S., Roth, R., Kukushkin, A., Grisola, Ch., Counsell, G., Roth, J., EFDA PWI Task Force, Kallenbach, A., Coad, P., Tsitrone, E., Shu, W., Ogordnikova, O., ITPA SOL/DIV, Doerner, R., Loarte, A., Ogorodnikova, O., Causey, R., ITER PWI Team, Philipps, V., Shui, W., Krieger, K., Grisolia, C.   +31 more
core   +1 more source

Operation of the Electron Cyclotron system in the ITER new baseline [PDF]

EPJ Web of Conferences
The ITER Research Plan (IRP) has undergone significant modifications based on the change of First Wall (FW) material from beryllium (Be) to tungsten (W). Such a change, together with the constraint of achieving Q=10 for 300s with a neutron fluence of ~1%
Schneider Mireille, Preynas Mélanie, Stober Jörg, Casal Natalia, Dubrov Maksim, Figini Lorenzo, Gribov Yuri, Poli Emanuele, de Vries Peter   +8 more
doaj   +1 more source

First SOLPS‐ITER Simulation Study of Japanese DEMO on Leakage of Seeded Ar Impurity

Contributions to Plasma Physics, EarlyView.
ABSTRACT For JA DEMO, one of the grand challenges is efficiently handling the extreme power loads onto plasma‐facing components, particularly the divertor targets. Impurity seeding is an essential strategy for increasing the radiation losses and thereby reducing the heat load on the targets.
Hang Si, Gakushi Kawamura, Nobuyuki Asakura, Kazuo Hoshino, Haruki Seto, Yoshiteru Sakamoto, Masatoshi Yagi   +6 more
wiley   +1 more source

Transport Simulasion in a Burning Tokamak Plasma [PDF]

, 1992
A one-dimensional tokamak transport code (TASK/TR) has been developed to analyze the evolution of a burning plasma accompanied with fusion reaction. This code deals with the electrons, deuterons, tritons, thermalized α particles, fast α particles and ...
Kasai, Takashi, Furutani, Yoichiro, Fukuyama, Atsushi   +2 more
core   +1 more source

Nonparametric Regression for Cost‐Effectiveness Analyses With Observational Data—A Tutorial

Health Economics, EarlyView.
ABSTRACT Healthcare decision‐making often requires selecting among multiple treatment options under budget constraints, particularly when one option is more effective but also more costly. Cost‐effectiveness analysis (CEA) provides a framework for evaluating whether the health benefits of a treatment justify its additional costs.
Jonas Esser, Mateus Maia, Judith E. Bosmans, Johanna Maria van Dongen   +3 more
wiley   +1 more source

Status of PRIMA, the test facility for ITER neutral beam injectors

, 2013
The ITER project requires additional heating by two neutral beam injectors, each accelerating to 1MV a 40A beam of negative deuterons, delivering to the plasma about 17MW up to one hour.
V. Antoni, A. Luchetta, D. Marcuzzi, G. Serianni, M. Bigi, CHITARIN, GIUSEPPE, R. Pasqualotto, ITER International Team, SONATO, PIERGIORGIO, N. Pomaro, V. Toigo, P. Zaccaria, P. Sonato, G. Chitarin   +13 more
core   +1 more source

Cross‐regional and temporal generalizability of portable visible spectroscopy for olive maturity classification

Journal of the Science of Food and Agriculture, EarlyView.
Abstract BACKGROUND Olive maturity governs lot destination and the yield–quality trade‐off in olive oil production, yet it is still monitored by subjective visual scoring of the Jaén index. Spectroscopic alternatives have relied mainly on near‐infrared instruments, with scarce evidence from Brazilian orchards and almost no evaluation of spatial or ...
David Mojaravscki, Paulo S Graziano Magalhães   +1 more
wiley   +1 more source

The impact of ELMs on the ITER divertor [PDF]

, 1998
Edge-Localized-Modes (ELMs) are expected to present a significant transient flux of energy and particles to the ITER divertor. The threshold for ablation of the graphite target will be reached if the ELM transient exceeds Q/t{sup 1/2} {approximately} 45 ...
Herrmann, A., Osborne, T.H., Hermann, A., Osborne, T., Lingertat, J., Leonard, A., Suttrop, W., Itami, K., Leonard, A.W., Loarte, A.   +9 more
core   +1 more source