Impurity sources in TEXTOR

Pospieszczyk, A.; Bay, H.L.; Bogen, P.; Hartwig, H.; Hintz, E.; Könen, L.; Ross, G.G.; Rusbüldt, D.; Samm, U.; Schweer, B.

doi:10.1016/0022-3115(87)90402-8

Cited by 44 publications

(28 citation statements)

References 3 publications

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“…In-situ calibration with injection of hydrocarbons takes into account local conditions like plasma parameters, surface properties and geometry. Spectroscopy is used to determine particle fluxes in fusion devices [5]. Photon fluxes are converted into particle fluxes with the aid of inverse photon efficiencies, or so-called S/XB or D/XB values.…”

Section: Introductionmentioning

confidence: 99%

Hydrocarbon injection for quantification of chemical erosion yields in tokamaks

Brezinsek¹,

Pospieszczyk²,

Borodin³

et al. 2007

Journal of Nuclear Materials

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Section: Introductionmentioning

confidence: 99%

Hydrocarbon injection for quantification of chemical erosion yields in tokamaks

Brezinsek¹,

Pospieszczyk²,

Borodin³

et al. 2007

Journal of Nuclear Materials

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“…As a small hydrocarbon its presence can be expected also in the boundary region of the plasma in thermonuclear reactors. The sources of impurities like carbon or CH were localized for example in tokamak TEXTOR (Pospieszczyk et al 1987). Relatively strong emission of carbon was detected in the fusion reactor plasma by means of optical emission spectroscopy (OES) (Zimin et al 2015) and the chemical erosion of carbon in the tokamak was specifically addressed using OES as well (Brezinsek et al 2007).…”

Section: Introductionmentioning

confidence: 99%

Dissociative Excitation of Acetylene Induced by Electron Impact: Excitation-emission Cross-sections

Országh

Danko

Čechvala

et al. 2017

ApJ

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The optical emission spectrum of acetylene excited by monoenergetic electrons was studied in the range 190-660 nm. The dissociative excitation and dissociative ionisation associated with excitation of the ions initiated by electron impact were dominant processes contributing to the spectrum. The spectrum was dominated by the atomic lines (hydrogen Balmer series, carbon) and molecular bands (CH(A-X), CH(B-X), CH + (B-A), and C2).Besides the discrete transitions we have detected the continuum emission radiation of ethynyl radical C2H(A-X). For most important lines and bands of the spectrum we have measured absolute excitation-emission cross sections and determined the energy thresholds of the particular dissociative channels.

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“…Moreover, no molecular bands or structures were found in spectra measured near plasma facing components [1], [2]. Moreover, no molecular bands or structures were found in spectra measured near plasma facing components [1], [2].…”

Section: Introductionmentioning

confidence: 99%