Particle exhaust studies in ASDEX Upgrade
| العنوان: | Particle exhaust studies in ASDEX Upgrade |
|---|---|
| المؤلفون: | Michael Kaufmann, G. Haas, R. Schneider, NI-Team, ASDEX-Upgrade-Team, Hans-Stephan Bosch, ICRH-Team, R. Dux, K. Lackner, A. Kallenbach, ECRH-Team, W. Poschenrieder, D. P. Coster, S. De Pena Hempel, J. Neuhauser |
| المصدر: | Plasma Physics and Controlled Fusion. 39:1771-1792 |
| بيانات النشر: | IOP Publishing, 1997. |
| سنة النشر: | 1997 |
| مصطلحات موضوعية: | Materials science, Tokamak, Divertor, Nuclear engineering, Physics::Optics, chemistry.chemical_element, Fusion power, Condensed Matter Physics, law.invention, Neon, Nuclear Energy and Engineering, chemistry, Deuterium, ASDEX Upgrade, Physics::Plasma Physics, law, Particle, Physics::Atomic Physics, Atomic physics, Helium |
| الوصف: | An experimental overview on pumping and particle exhaust studies for deuterium as well as for helium and neon in the ASDEX Upgrade divertor tokamak is presented. Strong turbomolecular pumps connected to the divertor region allow effective pumping of all these gases. Deuterium, however, is pumped effectively by the carbon walls in ASDEX Upgrade which dominate over the external pumping. Noble gases are hardly pumped by the walls, and their pumping efficiency and exhaust rate depends strongly on their respective density in the divertor chamber, i.e. on the effectivity of scrape-off layer transport and divertor retention. Compression of helium and neon in the divertor chamber increases with the divertor neutral gas density, and in high-power, high-density discharges in H- or CDH-mode pumping is very efficient. Helium exhaust in these scenarios is sufficiently fast to fulfill the requirements for ITER or a fusion reactor. |
| تدمد: | 1361-6587 0741-3335 |
| DOI: | 10.1088/0741-3335/39/11/002 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::052965eb25f75e268dddd1287c14def6 https://doi.org/10.1088/0741-3335/39/11/002 |
| رقم الانضمام: | edsair.doi...........052965eb25f75e268dddd1287c14def6 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 13616587 07413335 |
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| DOI: | 10.1088/0741-3335/39/11/002 |