Electronic Resource
Isotope effects on L-H threshold and confinement in tokamak plasmas
| العنوان: | Isotope effects on L-H threshold and confinement in tokamak plasmas |
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| المؤلفون: | Maggi, C. F., Andersson Sundén, Erik, Binda, Federico, Cecconello, Marco, Dzysiuk, Nataliia, Ericsson, Göran, Eriksson, Jacob, Hellesen, Carl, Hjalmarsson, Anders, Possnert, Göran, Sjöstrand, Henrik, Skiba, Mateusz, Weiszflog, Matthias, Zychor, I. |
| بيانات النشر: | Uppsala universitet, Tillämpad kärnfysik Culham Sci Ctr, CCFE, Abingdon, Oxon, England Natl Ctr Nucl Res, Otwock, Poland 2018 |
| نوع الوثيقة: | Electronic Resource |
| مستخلص: | The dependence of plasma transport and confinement on the main hydrogenic ion isotope mass is of fundamental importance for understanding turbulent transport and, therefore, for accurate extrapolations of confinement from present tokamak experiments, which typically use a single hydrogen isotope, to burning plasmas such as ITER, which will operate in deuterium-tritium mixtures. Knowledge of the dependence of plasma properties and edge transport barrier formation on main ion species is critical in view of the initial, low-activation phase of ITER operations in hydrogen or helium and of its implications on the subsequent operation in deuterium-tritium. The favourable scaling of global energy confinement time with isotope mass, which has been observed in many tokamak experiments, remains largely unexplained theoretically. Moreover, the mass scaling observed in experiments varies depending on the plasma edge conditions. In preparation for upcoming deuterium-tritium experiments in the JET tokamak with the ITER-like Be/W Wall (JET-ILW), a thorough experimental investigation of isotope effects in hydrogen, deuterium and tritium plasmas is being carried out, in order to provide stringent tests of plasma energy, particle and momentum transport models. Recent hydrogen and deuterium isotope experiments in JET-ILW on L-H power threshold, L-mode and H-mode confinement are reviewed and discussed in the context of past and more recent isotope experiments in tokamak plasmas, highlighting common elements as well as contrasting observations that have been reported. The experimental findings are discussed in the context of fundamental aspects of plasma transport models. For complete list of authors see http://dx.doi.org/10.1088/1361-6587/aa9901 |
| مصطلحات الفهرس: | tokamaks, isotope effects, confinement, L-H threshold, Fusion, Plasma and Space Physics, Fusion, plasma och rymdfysik, Article in journal, info:eu-repo/semantics/article, text |
| DOI: | 10.1088.1361-6587.aa9901 |
| URL: | Plasma Physics and Controlled Fusion, 0741-3335, 2018, 60:1 |
| الاتاحة: | Open access content. Open access content info:eu-repo/semantics/restrictedAccess |
| ملاحظة: | English |
| Other Numbers: | UPE oai:DiVA.org:uu-398199 0000-0002-0892-3358 0000-0002-4840-291x 0000-0002-7595-8024 0000-0002-0575-1749 doi:10.1088/1361-6587/aa9901 ISI:000428752600007 1235235317 |
| المصدر المساهم: | UPPSALA UNIV LIBR From OAIster®, provided by the OCLC Cooperative. |
| رقم الانضمام: | edsoai.on1235235317 |
| قاعدة البيانات: | OAIster |
| DOI: | 10.1088.1361-6587.aa9901 |
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