15-19 April 2018
Paradise Point Resort & Spa
America/Los_Angeles timezone

12.10 Assessment of the measurement performance of the ITER Plasma Position Reflectometry low-field in-vessel system using a FDTD Maxwell full-wave code

18 Apr 2018, 20:30
2h 1m
Paradise Point Resort & Spa

Paradise Point Resort & Spa

1404 Vacation Rd, San Diego, CA 92109

Speakers

Filipe da Silva (Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade de Lisboa) Stéphane Heuraux (Institut Jean Lamour, UMR 7198 CNRS-University of Lorraine) Paulo Varela (Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade de Lisboa) Emanuel Ricardo (Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade de Lisboa) Jorge Ferreira (Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade de Lisboa)

Description

We simulate the measurement performance of the ITER Plasma Position Reflectometry low-field side in-vessel system using a synthetic broadband Ordinary Mode Frequency-Modulated Continuous-Wave reflectometer implemented with REFMUL, a 2D Finite-Difference Time-Domain full-wave Maxwell code. These simulations take into account the system’s location within the vessel as well as its plasma access constraints. Two plasma cases are considered: a baseline scenario with Q=10 and a low-density He plasma. Due to the lack of data in the Scrape-Off Layer (SOL) region, the SOL profiles are extrapolated from the core plasma data using two different decay lengths. To weight the influences of Bragg backscattering and forward scattering due to turbulence, we use data with both low- and high-wavenumber spectra with linear and non-linear radial distributions of the amplitude.

Primary author

Filipe da Silva (Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade de Lisboa)

Co-authors

Stéphane Heuraux (Institut Jean Lamour, UMR 7198 CNRS-University of Lorraine) Paulo Varela (Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade de Lisboa) Emanuel Ricardo (Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade de Lisboa) Jorge Ferreira (Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade de Lisboa)

Presentation Materials

There are no materials yet.
Your browser is out of date!

Update your browser to view this website correctly. Update my browser now

×