Passive protection of the iter first mirrors
Web1 Oct 2015 · These M1 layouts can be the base for the generic concept of the ITER first mirror. Two types of the mirror cooling are studied: the active one (by channels directly implemented into M1) and passive one via compressed mesh and/or some well-conducting thermal bridges. WebKotov, V.; Reiter, D.; Litnovsky, A.; Kirschner, A.
Passive protection of the iter first mirrors
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Webfront of the mirror, etc) are predicted to reduce the amount of material deposited on FMs, suitable in situ cleaning solutions will be required to properly recover the FMs reflectance in ITER. The ideal features that a FMs cleaning technique should have can be summarized as follows [3]: Nuclear Fusion In situ cleaning of diagnostic first mirrors: WebA conservative engineering model of the impurity deposition on the diagnostic mirrors is proposed. The model is applied to analyze numerically the effect of protecting structures …
Web25 Jun 2024 · Porous ITER-like deposits are grown to mimic the edge conditions expected in ITER, and a severe degradation in the specular reflectivity is observed as these deposits … http://www-naweb.iaea.org/napc/physics/FEC/FEC2010/papers/itr_p1-06.pdf
Web16 Dec 2011 · The first mirrors of all optical diagnostics in ITER will be exposed to the fluxes of neutrals, mainly D, T and Be. This can lead to formation of erosion and deposition … Webcleaning and the predictive modeling of mirror performance in ITER. The current status of research on beryllium deposition - a new critical area of mirror research, is given along with an outlook for the future activities. 1. Introduction In ITER optical and laser diagnostic systems the first plasma-viewing element will be a mirror [1, 2].
Web23 Dec 2011 · Here, we consider three main approaches to high-reflective mirror design: (1) an Al or Ag reflective layer on a substrate with a transparent protective coating (e.g. Al 2 O …
Web8 Sep 2016 · In ITER, first mirrors for the Upper Wide Angle Viewing System (UWAVS) are expected to experience contamination with beryllium and tungsten. Contamination levels … baikal izh 70WebA conservative engineering model of the impurity deposition on the diagnostic mirrors is proposed. The model is applied to analyze numerically the effect of protecting structures (ducts) with and without baffles in the conditions of the ITER main chamber. It was found that the gross deposition rate in the ducts with baffles, if they are long enough, can be … baikal izh 46m usedWeb15 Jun 2007 · Mirrors in ITER will have to withstand radiation loads, erosion by charge-exchange neutrals, deposition of impurities, particle implantation and neutron irradiation. It is believed that the optical properties of diagnostic mirrors will be primarily influenced by erosion and deposition. aqua park okaWebPassive protection of the ITER diagnostic mirrors View the table of contents for this issue, or go to the journal homepage for more Home Search Collections Journals About … baikal izh 46m sealsWeb8 Apr 2015 · Known as metallic first mirrors, these components are part of optical diagnostic systems that are in place to ensure plasma control and analysis. Their role is … baikal izh-79-8WebThe issue: protection of first mirrors from deposition •Degradation of mirrors limits the life-time and performance of ITER optical diagnostics •Preliminary analysis [A. Litnovsky et al. … baikal izh 61Web20 May 2024 · the Thomson scattering mirror collecting system with a laser-induced fluorescence system operating in the visible range. Neutron tests of the mirrors of this design are presented along with numerical simulation of radiation damage and transmutation of mirror materials. To provide active protection of the large-scale mirrors … aquaparkok bp