TJ-II:Impurity transport: Difference between revisions

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[[File:Ethylene_injection.jpg|200px|thumb|right|CCD image of ethylene injection from the [[TJ-II:Limiter|limiter]] in H<sub>&alpha;</sub> light. A silhouette of the limiter shape is seen at the bottom. In the enlarged image, the glow from three embedded Langmuir probes is visible]]
The transport of impurities has been studied at [[TJ-II]].
The transport of impurities has been studied at [[TJ-II]].
<ref>[http://www.ipp.mpg.de/eng/for/veranstaltungen/workshops/stellarator_2003/papers/papers_pdf/McCarthy_132_SWS.pdf K.J. McCarthy et al, ''Impurity behaviour during externally induced radial electric fields in the TJ-II stellarator'', Proc. 14<sup>th</sup> International Stellarator Workshop (Greifswald, 2003) P.We14]</ref>
<ref>[http://www.ipp.mpg.de/eng/for/veranstaltungen/workshops/stellarator_2003/papers/papers_pdf/McCarthy_132_SWS.pdf K.J. McCarthy et al, ''Impurity behaviour during externally induced radial electric fields in the TJ-II stellarator'', Proc. 14<sup>th</sup> International Stellarator Workshop (Greifswald, 2003) P.We14]</ref>
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== Impurity injection methods ==
== Impurity injection methods ==


[[File:Ethylene_injection.jpg|200px|thumb|right|CCD image of ethylene injection from the [[TJ-II:Limiter|limiter]] in H<sub>&alpha;</sub> light. The limiter shape is seen at the bottom]]
* Laser ablation <ref>[http://epsppd.epfl.ch/Montreux/pdf/P5_025.pdf B. Zurro et al, ''Study of impurity transport injected by laser ablation in the TJ-II'', Proc. 29<sup>th</sup> EPS Conf. Plasma Phys. (Montreux, 2002) ECA Vol. '''26B''', P5.025]</ref> <ref>[http://epsppd.epfl.ch/StPetersburg/PDF/P2_079.PDF B. Zurro et al, ''Transport Analysis of Impurities Injected by Laser Ablation in the TJ-II Stellarator'', Proc. 30<sup>th</sup> EPS Conf. Plasma Phys. (St. Petersburg, 2003) ECA Vol. '''27A''', P-2.79]</ref>
* Laser ablation <ref>[http://epsppd.epfl.ch/Montreux/pdf/P5_025.pdf B. Zurro et al, ''Study of impurity transport injected by laser ablation in the TJ-II'', Proc. 29<sup>th</sup> EPS Conf. Plasma Phys. (Montreux, 2002) ECA Vol. '''26B''', P5.025]</ref> <ref>[http://epsppd.epfl.ch/StPetersburg/PDF/P2_079.PDF B. Zurro et al, ''Transport Analysis of Impurities Injected by Laser Ablation in the TJ-II Stellarator'', Proc. 30<sup>th</sup> EPS Conf. Plasma Phys. (St. Petersburg, 2003) ECA Vol. '''27A''', P-2.79]</ref>
* Injection via the [[TJ-II:Limiter|limiter]] <ref>[http://dx.doi.org/10.1016/j.jnucmat.2004.07.055 I. García-Cortés et al, ''Fuelling efficiency of hydrocarbons in TJ-II plasmas'', J. Nucl. Mat.  '''337-339''' (2005) 441-445]</ref> <ref>[http://epsppd.epfl.ch/Tarragona/pdf/P4_008.pdf F.L. Tabarés et al, ''Injection of hydrogen and ethylene at the plasma edge of TJ-II: A comparative study'', Proc. 32<sup>nd</sup> EPS Conference on Plasma Phys. (Tarragona, 2005), ECA Vol. '''29C''', P-4.008]</ref>
* Injection via the [[TJ-II:Limiter|limiter]] <ref>[http://dx.doi.org/10.1016/j.jnucmat.2004.07.055 I. García-Cortés et al, ''Fuelling efficiency of hydrocarbons in TJ-II plasmas'', J. Nucl. Mat.  '''337-339''' (2005) 441-445]</ref> <ref>[http://epsppd.epfl.ch/Tarragona/pdf/P4_008.pdf F.L. Tabarés et al, ''Injection of hydrogen and ethylene at the plasma edge of TJ-II: A comparative study'', Proc. 32<sup>nd</sup> EPS Conference on Plasma Phys. (Tarragona, 2005), ECA Vol. '''29C''', P-4.008]</ref>