TY - CHAP
T1 - Comparison of Particle Transport and Confinement Properties Between the ICRH and NBI Heated Dimensionless Identity Plasmas on JET
AU - Salmi, Antti
AU - Solano, E. R.
AU - Carvalho, I.S.
AU - Citrin, J.
AU - Chomiczewska, A.
AU - Delabie, E.
AU - Eriksson, F.
AU - Ferreira, J.
AU - Fransson, Emil
AU - Horvath, L.
AU - Jacquet, P.
AU - Kirjasuo, Anu
AU - Leerink, S.
AU - Lerche, E.
AU - Maggi, C.
AU - Mantica, P.
AU - Mariani, A.
AU - Maslov, M.
AU - Menmuir, S.
AU - Morales, R.B.
AU - Naulin, V.
AU - Nave, M.F.F.
AU - Normand, H.
AU - Perez Von Thun, C.
AU - Scheider, P.A.
AU - Sertoli, M.
AU - Tala, Tuomas
N1 - "The IAEA will not be issuing proceedings of the 28th IAEA Fusion Energy Conference. Instead, synopses, presentation slides, posters and manuscripts compiled as “Conference Material” will be made available on the IAEA Fusion Portal. The primary publishing route is the IAEA journal Nuclear Fusion."
“This work has been carried out within the framework of the EUROfusion Consortium and has received funding from the Euratom research and training programme 2014-2018 and 2019-2020 under grant agreement No 633053.
PY - 2021
Y1 - 2021
N2 - The density peaking was studied in the ICRH versus the NBI identity plasmas and results in R/Ln=0.45 for the ICRH shot and R/Ln=0.93 for the NBI shot. The dimensionless profiles of q, ρ*, υ*, βn and Ti/Te≈1 were matched within 5% difference except in the central part of the plasma (ρtor<0.3). The difference in the curvature pinch (same q-profile) and thermo-pinch (Ti=Te) between the ICRH and NBI shots is virtually zero. The ICRH and NBI heated identity plasmas yield similar plasma parameters and performance in the core plasma (0.3<ρtor<0.8). This result is valid at 8MW of heating power level, however, it remains to be seen how this promising result will scale to larger power levels and to larger devices. The identity experiment shows that NBI fuelling increases the density peaking by a factor of 2. This number may be modified due to different rotation, fast ion content or impurities which will be assessed in future.
AB - The density peaking was studied in the ICRH versus the NBI identity plasmas and results in R/Ln=0.45 for the ICRH shot and R/Ln=0.93 for the NBI shot. The dimensionless profiles of q, ρ*, υ*, βn and Ti/Te≈1 were matched within 5% difference except in the central part of the plasma (ρtor<0.3). The difference in the curvature pinch (same q-profile) and thermo-pinch (Ti=Te) between the ICRH and NBI shots is virtually zero. The ICRH and NBI heated identity plasmas yield similar plasma parameters and performance in the core plasma (0.3<ρtor<0.8). This result is valid at 8MW of heating power level, however, it remains to be seen how this promising result will scale to larger power levels and to larger devices. The identity experiment shows that NBI fuelling increases the density peaking by a factor of 2. This number may be modified due to different rotation, fast ion content or impurities which will be assessed in future.
UR - https://nucleus.iaea.org/sites/fusionportal/Shared%20Documents/FEC%202020/FEC2020_ConfMat_Online.pdf
M3 - Conference abstract in proceedings
BT - 28th IAEA Fusion Energy Conference 10-15 May 2021 Virtual Event
PB - International Atomic Energy Agency IAEA
T2 - 28th IAEA Fusion Energy Conference
Y2 - 10 May 2021 through 15 May 2021
ER -