تقرير
Effect of Scrape-Off-Layer Current on Reconstructed Tokamak Equilibrium
| العنوان: | Effect of Scrape-Off-Layer Current on Reconstructed Tokamak Equilibrium |
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| المؤلفون: | King, J. R., Kruger, S. E., Groebner, R. J., Hanson, J. D., Hebert, J. D., Held, E. D., Jepson, J. R. |
| المصدر: | Phys. Plasmas 24, 012504 (2017) |
| سنة النشر: | 2017 |
| المجموعة: | Physics (Other) |
| مصطلحات موضوعية: | Physics - Plasma Physics |
| الوصف: | Methods are described that extend fields from reconstructed equilibria to include scrape-off-layer current through extrapolated parametrized and experimental fits. The extrapolation includes both the effects of the toroidal-field and pressure gradients which produce scrape-off-layer current after recomputation of the Grad-Shafranov solution. To quantify the degree that inclusion of scrape-off-layer current modifies the equilibrium, the $\chi$-squared goodness-of-fit parameter is calculated for cases with and without scrape-off-layer current. The change in $\chi$-squared is found to be minor when scrape-off-layer current is included however flux surfaces are shifted by up to 3 cm. The impact on edge modes of these scrape-off-layer modifications is also found to be small and the importance of these methods to nonlinear computation is discussed. Comment: 14 pages |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1063/1.4972822 |
| URL الوصول: | http://arxiv.org/abs/1702.00076 |
| رقم الأكسشن: | edsarx.1702.00076 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1063/1.4972822 |
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