Journal ArticleDOI
Surface temperature measurements by means of pulsed photothermal effects in fusion devices
Th. Loarer,F. Brygo,Eric Gauthier,C. Grisolia,F. Le Guern,F. Moreau,Andrea Murari,H. Roche,Alexandre Semerok +8 more
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TLDR
In this paper, the authors proposed a pulsed photothermal method for temperature measurements independently of reflected and parasitic fluxes, where a local increase of the surface temperature introduced by a laser pulse (a few ns) results in an additional component of the photon flux collected by the detector, proportional only to the variation of the emitted flux, the emissivity and Δ T.About:
This article is published in Journal of Nuclear Materials.The article was published on 2007-06-15. It has received 23 citations till now. The article focuses on the topics: Emissivity & Bremsstrahlung.read more
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Journal ArticleDOI
Plasma-surface interaction, scrape-off layer and divertor physics:Implications for ITER
Bruce Lipschultz,Xavier Bonnin,G. F. Counsell,A. Kallenbach,A. Kukushkin,K. Krieger,Anthony Leonard,A. Loarte,Rudolf Neu,R.A. Pitts,T.D. Rognlien,J. Roth,C.H. Skinner,J.L. Terry,E. Tsitrone,D.G. Whyte,S. J. Zweben,Nobuyuki Asakura,D. P. Coster,R.P. Doerner,R. Dux,G. Federici,M.E. Fenstermacher,Wojciech Fundamenski,Philippe Ghendrih,A. Herrmann,Jiansheng Hu,Sergei Krasheninnikov,G. Kirnev,Arkadi Kreter,V. A. Kurnaev,Brian LaBombard,S. Lisgo,T. Nakano,Noriyasu Ohno,H. D. Pacher,J.I. Paley,Y. Pan,G. Pautasso,V. Philipps,V. Rohde,Dmitry Rudakov,P.C. Stangeby,Shuichi Takamura,Tetsuo Tanabe,Y. Yang,S. Zhu +46 more
TL;DR: In this article, a review of recent work in scrape-off layer (SOL) and divertor physics is presented, where new and existing data from a variety of experiments have been used to make cross-experiment comparisons with implications for further research and ITER.
Journal ArticleDOI
Development of two-colour pyroreflectometry technique for temperature monitoring of tungsten plasma facing components
TL;DR: In this paper, a two-colour pyroreflectometry technique is proposed to measure the temperature on tungsten above 600 °C, where the main assumption is that the indicatrix of reflection does not vary within the narrow wavelength range used.
Journal ArticleDOI
Characterization of disruption mitigation via massive gas injection on MAST
TL;DR: Mitigation has been seen to be effective at reducing peak divertor power loads, with reductions of up to 60% in the divertor's power load being observed as mentioned in this paper, which is reflected by an increase in radiated power, mainly due to line radiation from the injected impurities.
Journal ArticleDOI
Development of a realistic photonic modeling for the evaluation of infrared reflections in the metallic environment of ITER.
M.-H. Aumeunier,J.-M. Travere +1 more
TL;DR: A realistic photonic modeling based on Monte Carlo ray-tracing codes is used to predict the global response of the complete IR survey system using the complex vessel geometry and the thermal and optical surface properties using the bidirectional reflectivity distribution function that models the photon-material interactions.
Journal ArticleDOI
Simulation of the Infrared Views of the Upper Port VIS/IR Imaging System of ITER
TL;DR: In this article, a Monte Carlo ray-tracing code (SPEOS CAA V5 Based) was used to simulate the IR images of the ITER tokamak.
References
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Journal ArticleDOI
Plasma{material interactions in current tokamaks and their implications for next step fusion reactors
G. Federici,C. H. Skinner,Jeffrey N. Brooks,J. P. Coad,C. Grisolia,A.A. Haasz,Ahmed Hassanein,V. Philipps,C. S. Pitcher,J. Roth,W R Wampler,Dennis Whyte +11 more
TL;DR: In this article, the authors review the underlying physical processes and the existing experimental database of plasma-material interactions both in tokamaks and laboratory simulation facilities for conditions of direct relevance to next-step fusion reactors.
ReportDOI
Plasma-material Interactions in Current Tokamaks and their Implications for Next-step Fusion Reactors
TL;DR: In this article, the underlying physical processes and the existing experimental database of plasma-material interactions both in tokamaks and laboratory simulation facilities for conditions of direct relevance to next-step fusion reactors are reviewed.
Journal ArticleDOI
Self-contained high-pressure cell, apparatus, and procedure for the preparation of encapsulated proteins dissolved in low viscosity fluids for nuclear magnetic resonance spectroscopy
TL;DR: The design of a sample cell for high-performance nuclear magnetic resonance (NMR) at elevated pressure is described, which has several advantages, including relatively low cost, excellent NMR performance, high-pressure tolerance, chemical inertness, and a relatively large active volume.
Journal ArticleDOI
Power deposition measurements in deuterium and helium discharges in JET MKIIGB divertor by IR-thermography
TL;DR: In this article, the thermal impact due to edge localised modes (ELMs) on a type-I ELMy H-mode discharge with ELM frequencies of 10-35 Hz was investigated.
Journal ArticleDOI
A concept to determine the true temperature of opaque materials using a tricolor pyroreflectometer
TL;DR: In this article, the authors present an analysis of their theoretical simulations and experimental measurements that have been carried out in order to validate a three-color method for the determination of the true temperature of opaque materials.