@article{a63b5333a5504420a22fbfdcd12b11fc,
title = "Effects of nitrogen seeding on core ion thermal transport in JET ILW L-mode plasmas",
abstract = "A set of experiments was carried out in JET ILW (Joint European Torus with ITER-Like Wall) L-mode plasmas in order to study the effects of light impurities on core ion thermal transport. N was puffed into some discharges and its profile was measured by active Charge Exchange diagnostics, while ICRH power was deposited on-and off-Axis in minority scheme in order to have a scan of local heat flux at constant total power with and without N injection. Experimentally, the ion temperature profiles are more peaked for similar heat fluxes when N is injected in the plasma. Gyro-kinetic simulations using the GENE code indicate that a stabilization of Ion Temperature Gradient driven turbulent transport due to main ion dilution and to changes in and s/q is responsible of the enhanced peaking. The quasi-linear models TGLF and QuaLiKiz are tested against the experimental and the gyro-kinetic results.",
keywords = "gyrokinetic simulations, light impurities in JET, nuclear fusion, quasilinear simulations, turbulent transport",
author = "{JET Contributors} and N. Bonanomi and P. Mantica and J. Citrin and C. Giroud and E. Lerche and C. Sozzi and D. Taylor and M. Tsalas and {Van Eester}, D. and X. Litaudon and S. Abduallev and M. Abhangi and P. Abreu and M. Afzal and Aggarwal, {K. M.} and T. Ahlgren and Ahn, {J. H.} and L. Aho-Mantila and N. Aiba and M. Airila and R. Albanese and V. Aldred and D. Alegre and E. Alessi and P. Aleynikov and A. Alfer and A. Alkseev and M. Allinson and B. Alper and E. Alves and G. Ambrosino and R. Ambrosino and L. Amicucci and V. Amosov and Sund{\'e}n, {E. Andersson} and K. Cromb{\'e} and P. Dumortier and F. Durodi{\'e} and S. Jachmich and Y. Kazakov and A. Krivska and A. Lyssoivan and A. Messiaen and S. Moradi and J. Ongena and R. Ragona and I. Stepanov and {Van Eester}, D. and G. Verdoolaege and T. Wauters",
note = "Publisher Copyright: {\textcopyright} 2018 EURATOM.",
year = "2018",
month = feb,
doi = "10.1088/1741-4326/aa9e7c",
language = "English",
volume = "58",
journal = "Nuclear Fusion",
issn = "0029-5515",
number = "2",
}