Skip to Main content Skip to Navigation
New interface
Journal articles

Assessment of measurement performance for a low field side IDTT plasma position reflectometry system

Abstract : The Italian Divertor Test Tokamak (IDTT) facility will study advanced exhaust solutions applicable to DEMO. This new machine also opens the possibility to test and validate relevant non-magnetic control diagnostics in support of a DEMO design implementation. Reflectometry, compatible with a full grade reactor implementation, has been proposed as a source of real-time (RT) plasma position and shape measurements for control purposes, in replacement or complement of standard magnetic measurements, to ensure reliability and safety on the machine. Additionally, such a system can be useful to obtain the characteristics of edge turbulence, useful for Neoclassical Tearing Mode (NTM) control or to improve the efficiency of other diagnostics as Collective Thomson Scattering (CTS). This new control technique based on multiple, poloidally distributed, non-magnetic measurements, must be tested, in all of its aspects, before it can be fully implemented in future fusion reactors. IDTT will be one of the best candidates to implement and build a knowledge database of nonstandard reflectometry (away from the equatorial plane) that will be needed on DEMO and is currently unavailable. The performance of three Ordinary mode (O-mode) Plasma Position Reflectometers (PPR) at the Lower Field Side (LFS) on IDTT is assessed using the two-dimensional (2D) full-wave Finite-Difference Time-Domain (FDTD) code, REFMULF, in two of the foreseen IDTT plasma scenarios: 5MA Single Null (SN) and Double Null (DN) configurations.
Document type :
Journal articles
Complete list of metadata
Contributor : stéphane heuraux Connect in order to contact the contributor
Submitted on : Tuesday, March 9, 2021 - 8:59:46 PM
Last modification on : Sunday, June 26, 2022 - 3:05:51 AM
Long-term archiving on: : Thursday, June 10, 2021 - 8:29:20 PM


Files produced by the author(s)




F da Silva, J Ferreira, J Santos, Stéphane Heuraux, E Ricardo, et al.. Assessment of measurement performance for a low field side IDTT plasma position reflectometry system. Fusion Engineering and Design, 2021, 168, pp.112405. ⟨10.1016/j.fusengdes.2021.112405⟩. ⟨hal-03164339⟩



Record views


Files downloads