000281587 001__ 281587 000281587 005__ 20250129092423.0 000281587 0247_ $$2doi$$a10.1088/0031-8949/2015/T167/014005 000281587 0247_ $$2ISSN$$a0031-8949 000281587 0247_ $$2ISSN$$a1402-4896 000281587 0247_ $$2WOS$$aWOS:000383504700006 000281587 0247_ $$2altmetric$$aaltmetric:4971913 000281587 037__ $$aFZJ-2016-01276 000281587 041__ $$aEnglish 000281587 082__ $$a530 000281587 1001_ $$0P:(DE-HGF)0$$aGuillemaut, C.$$b0$$eCorresponding author 000281587 245__ $$aExperimental estimation of tungsten impurity sputtering due to Type I ELMs in JET-ITER-like wall using pedestal electron cyclotron emission and target Langmuir probe measurements 000281587 260__ $$aBristol$$bIoP Publ.$$c2016 000281587 3367_ $$0PUB:(DE-HGF)16$$2PUB:(DE-HGF)$$aJournal Article$$bjournal$$mjournal$$s1454319874_19490 000281587 3367_ $$2DataCite$$aOutput Types/Journal article 000281587 3367_ $$00$$2EndNote$$aJournal Article 000281587 3367_ $$2BibTeX$$aARTICLE 000281587 3367_ $$2ORCID$$aJOURNAL_ARTICLE 000281587 3367_ $$2DRIVER$$aarticle 000281587 520__ $$aThe ITER baseline scenario, with 500 MW of DT fusion power and Q = 10, will rely on a Type I ELMy H-mode and will be achieved with a tungsten (W) divertor. W atoms sputtered from divertor targets during mitigated ELMs are expected to be the dominant source in ITER. W impurity concentration in the plasma core can dramatically degrade its performance and lead to potentially damaging disruptions. Understanding the physics of the target W source due to sputtering during ELMs and inter-ELMs is important and can be helped by experimental measurements with improved precision. It has been established that the ELMy target ion impact energy has a simple linear dependence with the pedestal electron temperature measured by Electron Cyclotron Emission (ECE). It has also been shown that Langmuir Probes (LP) ion flux measurements are reliable during ELMs due to the surprisingly low electron temperature. Therefore, in this paper, LP and ECE measurements in JET-ITER-Like-Wall (ILW) unseeded Type I ELMy H-mode experiments have been used to estimate the W sputtering flux from divertor targets in ELM and inter-ELM conditions. Comparison with similar estimates using W I spectroscopy measurements shows a reasonable agreement for the ELM and inter-ELM W source. The main advantage of the method involving LP measurements is the very high time resolution of the diagnostic (~10 μs) allowing very precise description of the W sputtering source during ELMs. 000281587 536__ $$0G:(DE-HGF)POF3-174$$a174 - Plasma-Wall-Interaction (POF3-174)$$cPOF3-174$$fPOF III$$x0 000281587 588__ $$aDataset connected to CrossRef 000281587 7001_ $$0P:(DE-HGF)0$$aJardin, A.$$b1 000281587 7001_ $$0P:(DE-HGF)0$$aHoracek, J.$$b2 000281587 7001_ $$0P:(DE-Juel1)168396$$aBorodkina, I.$$b3 000281587 7001_ $$0P:(DE-HGF)0$$aAutricque, A.$$b4 000281587 7001_ $$0P:(DE-HGF)0$$aArnoux, G.$$b5 000281587 7001_ $$0P:(DE-Juel1)162349$$aBoom, J.$$b6 000281587 7001_ $$0P:(DE-Juel1)129976$$aBrezinsek, S.$$b7 000281587 7001_ $$0P:(DE-Juel1)2594$$aCoenen, J. W.$$b8 000281587 7001_ $$0P:(DE-HGF)0$$aDe La Luna, E.$$b9 000281587 7001_ $$0P:(DE-HGF)0$$aDevaux, S.$$b10 000281587 7001_ $$0P:(DE-HGF)0$$aEich, T.$$b11 000281587 7001_ $$0P:(DE-HGF)0$$aHarting, D.$$b12 000281587 7001_ $$0P:(DE-Juel1)2620$$aKirschner, A.$$b13 000281587 7001_ $$0P:(DE-HGF)0$$aLipschultz, B.$$b14 000281587 7001_ $$0P:(DE-HGF)0$$aMatthews, G. 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