000844180 001__ 844180
000844180 005__ 20240711113745.0
000844180 0247_ $$2doi$$a10.1088/1402-4896/aa8a45
000844180 0247_ $$2ISSN$$a0031-8949
000844180 0247_ $$2ISSN$$a1402-4896
000844180 0247_ $$2WOS$$aWOS:000414120500052
000844180 0247_ $$2altmetric$$aaltmetric:28218799
000844180 037__ $$aFZJ-2018-01632
000844180 082__ $$a530
000844180 1001_ $$0P:(DE-Juel1)129976$$aBrezinsek, S.$$b0$$eCorresponding author
000844180 245__ $$aSpectroscopic determination of inverse photon efficiencies of W atoms in the scrape-off layer of TEXTOR
000844180 260__ $$aBristol$$bIoP Publ.$$c2017
000844180 3367_ $$2DRIVER$$aarticle
000844180 3367_ $$2DataCite$$aOutput Types/Journal article
000844180 3367_ $$0PUB:(DE-HGF)16$$2PUB:(DE-HGF)$$aJournal Article$$bjournal$$mjournal$$s1520330032_21025
000844180 3367_ $$2BibTeX$$aARTICLE
000844180 3367_ $$2ORCID$$aJOURNAL_ARTICLE
000844180 3367_ $$00$$2EndNote$$aJournal Article
000844180 520__ $$aOptical emission spectroscopy can be applied to determine in situ tungsten particle fluxes from erosion processes at plasma-facing materials. Inverse photon efficiencies convert photon fluxes of WI and WII line transitions into W and ${{\rm{W}}}^{+}$ particle fluxes, respectively, dependening on the local plasma conditions. Experiments in TEXTOR were carried out to determine effective conversion factors for different WI and WII transitions with the aid of WF6 injection into deuterium scrape-off layer plasmas in the electron temperature T e range between ${T}_{{e}}=20\,\mathrm{eV}$ and ${T}_{{e}}=82\,\mathrm{eV}$. The inverse photon efficiencies or so-called effective $\tfrac{S}{{XB}}$-values have been determined for WI lines at $\lambda =400.9\,\mathrm{nm}$, 429.5 nm, 488.7 nm, 498.3 nm, and 522.5 nm as well as for WII at $\lambda =434.6\,\mathrm{nm}$ and compared with theoretical calculations from the ADAS data base. Moreover, a multi-machine scaling for the $\tfrac{S}{{XB}}$-value in the range of T e between $2...100\,\mathrm{eV}$ has been determined for the most prominent WI line at $\lambda =400.9\,\mathrm{nm}$ to $\tfrac{S}{{XB}}({T}_{{e}})=53.63-56.07\times {e}^{(0.045\times {T}_{{e}}[\mathrm{eV}])}$ considering experimental data from TEXTOR, ASDEX Upgrade, PSI and PISCES. Comparison with ADAS calculations for the same transition reveal a good qualitative agreement with the dependence on T e , but an underestimation of ADAS calculations of less than 25% over the full covered range of experimentally accessible T e in the multi-machine scaling. A good agreement within the experimental uncertainties is found between TEXTOR and ADAS $\tfrac{S}{{XB}}$-values for WI at $\lambda =429.5\,\mathrm{nm}$ and $\lambda =488.7\,\mathrm{nm}$ whereas an underestimation of up to a factor two of ADAS values for WI at $\lambda =522.5\,\mathrm{nm}$ and $\lambda =498.3\,\mathrm{nm}$ was measured. Potentially, reasons for the discrepancy are an overestimation of applied ionisation rate coefficients in ADAS for neutral W and a stronger electron dependence n e for these transitions.
000844180 536__ $$0G:(DE-HGF)POF3-174$$a174 - Plasma-Wall-Interaction (POF3-174)$$cPOF3-174$$fPOF III$$x0
000844180 588__ $$aDataset connected to CrossRef
000844180 7001_ $$0P:(DE-Juel1)139522$$aLaengner, M.$$b1
000844180 7001_ $$0P:(DE-Juel1)2594$$aCoenen, J. W.$$b2
000844180 7001_ $$0P:(DE-HGF)0$$aO’Mullane, M. G.$$b3
000844180 7001_ $$0P:(DE-Juel1)130122$$aPospieszczyk, A.$$b4$$ufzj
000844180 7001_ $$0P:(DE-Juel1)130158$$aSergienko, G.$$b5
000844180 7001_ $$0P:(DE-Juel1)130133$$aSamm, U.$$b6$$ufzj
000844180 773__ $$0PERI:(DE-600)1477351-x$$a10.1088/1402-4896/aa8a45$$gVol. T170, p. 014052 -$$p014052 -$$tPhysica scripta$$vT170$$x1402-4896$$y2017
000844180 8564_ $$uhttps://juser.fz-juelich.de/record/844180/files/Brezinsek_2017_Phys._Scr._2017_014052.pdf$$yRestricted
000844180 8564_ $$uhttps://juser.fz-juelich.de/record/844180/files/Brezinsek_2017_Phys._Scr._2017_014052.gif?subformat=icon$$xicon$$yRestricted
000844180 8564_ $$uhttps://juser.fz-juelich.de/record/844180/files/Brezinsek_2017_Phys._Scr._2017_014052.jpg?subformat=icon-1440$$xicon-1440$$yRestricted
000844180 8564_ $$uhttps://juser.fz-juelich.de/record/844180/files/Brezinsek_2017_Phys._Scr._2017_014052.jpg?subformat=icon-180$$xicon-180$$yRestricted
000844180 8564_ $$uhttps://juser.fz-juelich.de/record/844180/files/Brezinsek_2017_Phys._Scr._2017_014052.jpg?subformat=icon-640$$xicon-640$$yRestricted
000844180 8564_ $$uhttps://juser.fz-juelich.de/record/844180/files/Brezinsek_2017_Phys._Scr._2017_014052.pdf?subformat=pdfa$$xpdfa$$yRestricted
000844180 909CO $$ooai:juser.fz-juelich.de:844180$$pVDB
000844180 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)129976$$aForschungszentrum Jülich$$b0$$kFZJ
000844180 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)2594$$aForschungszentrum Jülich$$b2$$kFZJ
000844180 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)130122$$aForschungszentrum Jülich$$b4$$kFZJ
000844180 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)130158$$aForschungszentrum Jülich$$b5$$kFZJ
000844180 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)130133$$aForschungszentrum Jülich$$b6$$kFZJ
000844180 9131_ $$0G:(DE-HGF)POF3-174$$1G:(DE-HGF)POF3-170$$2G:(DE-HGF)POF3-100$$3G:(DE-HGF)POF3$$4G:(DE-HGF)POF$$aDE-HGF$$bEnergie$$lKernfusion$$vPlasma-Wall-Interaction$$x0
000844180 9141_ $$y2018
000844180 915__ $$0StatID:(DE-HGF)0420$$2StatID$$aNationallizenz
000844180 915__ $$0StatID:(DE-HGF)0430$$2StatID$$aNational-Konsortium
000844180 915__ $$0StatID:(DE-HGF)0300$$2StatID$$aDBCoverage$$bMedline
000844180 915__ $$0StatID:(DE-HGF)0200$$2StatID$$aDBCoverage$$bSCOPUS
000844180 915__ $$0StatID:(DE-HGF)0199$$2StatID$$aDBCoverage$$bThomson Reuters Master Journal List
000844180 915__ $$0StatID:(DE-HGF)0110$$2StatID$$aWoS$$bScience Citation Index
000844180 915__ $$0StatID:(DE-HGF)0150$$2StatID$$aDBCoverage$$bWeb of Science Core Collection
000844180 915__ $$0StatID:(DE-HGF)0111$$2StatID$$aWoS$$bScience Citation Index Expanded
000844180 915__ $$0StatID:(DE-HGF)1150$$2StatID$$aDBCoverage$$bCurrent Contents - Physical, Chemical and Earth Sciences
000844180 9201_ $$0I:(DE-Juel1)IEK-4-20101013$$kIEK-4$$lPlasmaphysik$$x0
000844180 980__ $$ajournal
000844180 980__ $$aVDB
000844180 980__ $$aI:(DE-Juel1)IEK-4-20101013
000844180 980__ $$aUNRESTRICTED
000844180 981__ $$aI:(DE-Juel1)IFN-1-20101013