In nuclear fusion devices there are several measurement systems, devoted to the evaluation of many physical quantities of interest for plasma confinement, like the energy confinement time, the poloidal beta, etc. Because of manufacturing and installation imperfections, the geometry of the real sensors differs from the ideality, thus affecting the measurements they carry out. The tolerable range for geometrical imperfections can be estimated by a sensitivity analysis. The COMPFLUX electromagnetic numerical code allows computing magnetic fields and fluxes generated by axisymmetric massive, as well as general filamentary currents, also in the presence of magnetized materials. It has been designed so as to carry out wide, accurate and fast sensitivity analyses. We show the main features of this suite with an example of application to the diamagnetic flux measurement in a fusion device.
COMPFLUX: a tool for the analysis of the effects of spurious sources and geometrical imperfections on the magnetic measurements in fusion devices
FRESA, RAFFAELE;
In corso di stampa
Abstract
In nuclear fusion devices there are several measurement systems, devoted to the evaluation of many physical quantities of interest for plasma confinement, like the energy confinement time, the poloidal beta, etc. Because of manufacturing and installation imperfections, the geometry of the real sensors differs from the ideality, thus affecting the measurements they carry out. The tolerable range for geometrical imperfections can be estimated by a sensitivity analysis. The COMPFLUX electromagnetic numerical code allows computing magnetic fields and fluxes generated by axisymmetric massive, as well as general filamentary currents, also in the presence of magnetized materials. It has been designed so as to carry out wide, accurate and fast sensitivity analyses. We show the main features of this suite with an example of application to the diamagnetic flux measurement in a fusion device.File | Dimensione | Formato | |
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