Passive protection of the iter first mirrors

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August undefined, 2024

WebPassive 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 … Web1 Oct 2015 · The so-called first mirrors will view the plasma directly. These mirrors will suffer from erosion due to fast charge exchange atoms or from deposition of impurities, …

Major aspects of the design of a first mirror for the ITER core …

http://www-naweb.iaea.org/napc/physics/FEC/FEC2010/papers/itr_p1-06.pdf Web8 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 … pine ridge apartments southfield mi

Passive protection of the ITER first mirrors - JuSER

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: WebKotov, V.; Reiter, D.; Litnovsky, A.; Kirschner, A. Web20 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 … pine ridge apartments walnut cove nc

In situ cleaning of diagnostic first mirrors: an experimental ... - CORE

Progress in research and development of mirrors for ITER …

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 … 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 … top notch thrift storeWebcleaning 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]. top notch the health center las vegas nv

"WebIn the hostile ITER environment, mirrors will be subject to erosion, deposition, particle implantation and other adverse effects which will change their optical properties affecting … " - Passive protection of the iter first mirrors

Passive protection of the iter first mirrors

High reflective mirrors for in-vessel applications in ITER

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 … http://iter.org/construction/SiteFabricationPFcoils

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Webradiation to the first mirror geometry of ITER was created by the lens system (Fig. 4). This system consists of three lenses: one focusing and two forming a telescopic system with 1:1 magnification. Each of the telescopic lens system has a diameter of 182 mm. This allows scanning the surface 200x100 mm (the size of the first mirror is equal to ... WebPlasma-viewing first mirror is known to be the most vulnerable component of ITER optical and laser-based diagnostics. The optical reflectivity of mirror may degrade in the severe …

Webdiagnostic mirrors in ITER throughout the entire lifetime of a machine. These solutions are being pursued in a frame of the multi-machine ITPA-IEA Joint Experiments (task DIAG-2) and recognized as a High Priority Topic of the ITPA TG on diagnostics [1]. 2. First mirrors: main issues in the research and development program 2.1. Web27 Oct 2024 · Several optical diagnostic systems foreseen in International Thermonuclear Experimental Reactor (ITER) will rely on metallic first mirrors (FMs), enabling light originating from the plasma or probing light sources to travel through the neutron shielding towards …

WebKlingelbergstrasse 82, 4056 Basel, Switserland. Starting Date. As soon as possible. Position Type. PhD position. The PhD work concerns experimental and numerical studies of plasma cleaning of the so-called first mirrors for future fusion facilities, such as ITER First mirrors will play a crucial role in numerous ITER optical diagnostic systems. Web20 May 2024 · prevent mirror degradation in the course of ITER operation. The ﬁrst mirror (FM) of the TS system will be located in an area featuring pure deposition-dominated …

Web25 Sep 2024 · One of the important aspects of the service life of the first and second optical mirrors (FM and SM) in ITER UWAVS diagnostics is to understand the influence of plasma …

Web15 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. pine ridge apartments willoughby ohWeb8 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 … pine ridge apartments washingtonWebA 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 … pine ridge apartments west palm beach flWeb23 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 … top notch tile njWeb1 Nov 2024 · A single shutter is envisioned for protecting the first mirrors from contaminants during non-operation. A shutter study was completed and a preliminary design for a normally open, fail open mechanism was created and analyzed. pine ridge apartments willoughby hills ohioWebThe 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. … top notch tile mnWebi i \PhD_LucasMoser" 2024/10/3 9:50 page 1 #1 i i i i i i Plasma cleaning of diagnostic rst mirrors for the nuclear fusion machine ITER Inauguraldissertation zur Erlangung pine ridge apts calhoun ga