Diagnostics for fusion reactors
- Alberto Marocchino (LNF)
Diagnostics for fusion reactors
- Angelo Ferrario (Quanta System)
Mr Michael WALSH (ITER ORGANIZATION)
10/4/18, 11:55 AM
In southern France, 7 partners comprising of 35 nations are collaborating to build the world's largest tokamak. This is a magnetic fusion device called ITER that has been designed to prove the feasibility of fusion. This project is now well advanced in its construction. This includes the buildings, the major components and the independent systems. Amongst these are the diagnostic...
Dr Michael Walsh (ITER Organization), Dr Victor Udintsev (ITER Organisation)
10/4/18, 12:40 PM
Integration of diagnostics in the ITER complex is a very important task that requires interfaces with other systems, like vacuum vessel, port plugs, buildings, vacuum systems and remote maintenance. The latter is particularly important as many diagnostics will have to be handled remotely during installation/removal, in order to carry out refurbishment, environmental and functional tests in the...
Mr Giuseppe Galatola Teka (ENEA - FSN, Frascati (RM), Italy)
10/5/18, 5:00 PM
The PROTO-SPHERA (PS)  experiment at Frascati ENEA Research Centre produce a Spherical Torus (ST) around a Plasma Centerpost (PC). The PC is an arc discharge driven by DC voltage between two annular electrodes. This alternative and stable magnetic configuration is obtained without the internal toroidal coils and without the central ohmic transformer of a traditional tokamak. In fact, the...
51. Modelling Reflectometry Diagnostics: Finite-Difference Time-Domain Simulation of Reflectometry in Fusion Plasmas
Dr Filipe da Silva (Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade de Lisboa, Portugal)
10/5/18, 5:20 PM
Reflectometry simulations are particularly important since they permit to assess the measuring capabilities of existing experimental systems and to predict the performance of future ones. We present a brief overview of reflectometry together with a short introduction to the Finite Difference Time Domain (FDTD) method for the simulation of reflectometry. The goal is to prepare the listener for...
Dr Paulo Jorge Gonçalves Varela (Instituto de Plasmas e Fusão Nuclear)
10/5/18, 5:40 PM
The ITER Plasma Position Reflectometry (PPR) diagnostic is planned to be used to measure the plasma edge density profile at or near four pre-defined locations distributed both poloidally and toroidally in the ITER vacuum vessel. The measured density profile will then be provided in real-time to the Plasma Control System, which will use it to derive a supplementary contribution to the magnetic...
Dr Jorge Sousa (Instituto Superior Técnico)
10/5/18, 6:00 PM
Near steady-state operation of plasmas in fusion machines controlled by systems with high acquisition channel density require much reduced downtime (High Availability or HA). To achieve adequate HA for scalable, high performance systems, various techniques can be applied: • Serviceability - remote hardware management, modules hot-swap, modularity, firmware update support; • Fault detection...