RFX-mod2 (R = 2.0 m, a = 0.49 m), the upgraded version of the previous RFXmod fusion device, will be equipped with a new reflectometry system specifically designed for plasma position control purposes. Featuring a high temporal and spatial resolution and being suitable for harsh fusion reactor experimental conditions (long pulses, high neutron fluxes), reflectometry has been proposed as a good candidate for this task. On RFX-mod2 the diagnostic system will consist of four bistatic ultrafast independent reflectometric units working in the frequency range (16-26.5 GHz) and installed in four different poloidal locations at the same toroidal angle: two on the equatorial plane (high field side/low field side) and two at the vertical top/bottom ports. Standard pyramidal horns will be installed in the external midplane and in the vertical ports, while parabolic hoghorn reflectors have been designed for the internal midplane. Different technical solutions for the integration in the machine, as the additive manufacturing for the antenna production, are presented. Despite the differences with respect to the application on large Tokamaks like DEMO, the RFX-mod2 plasma position reflectometer can contribute to test on a simple machine some of the issues related to the development of a reflectometry based plasma position and shape control.
Design of a new reflectometric system for real time plasma position control on the RFX-mod2 device
De Masi G.; Cavazzana R.; Abate D.; Bernardi M.; Marchiori G.; Moresco M.; Tiso A.; Peruzzo S.
Journal:
Journal of instrumentation 17 (1),
pp. C01071-1 - C01071-11
Year:
2022
ISTP Authors: Gianluca De Masi
Gianluca De Masi
Giuseppe Marchiori
Keywords: Plasma diagnostics - probes, waveguides, Microwave Antennas
Research Activitie: JOURNAL ARTICLES
Related products
-
Nuclear fusion 61 (7), pp. 076012-1 - 076012-14 Year: 2021 DOI: 10.1088/1741-4326/abfb13
H-mode plasmas in the pre-fusion power operation 1 phase of the ITER research plan
Loarte A.; Polevoi A.R.; Schneider M.; Pinches S.D.; Fable E.; Militello Asp E.; Baranov Y.; Casson F.; Corrigan G.; Garzotti L.; Harting D.; Knight P.; Koechl F.; Parail V.; Farina D.; Figini L.; Nordman H.; Strand P.; Sartori R.
-
Monthly notices of the Royal Astronomical Society (Online) 503 (4), pp. 4815 - 4827 Year: 2021 DOI: 10.1093/mnras/stab319
Comparing turbulence in a Kelvin-Helmholtz instability region across the terrestrial magnetopause
Quijia, P.; Fraternale, F.; Stawarz, J.E.; Vasconez, C.L.; Perri, S.; Marino, R.; Yordanova, E.; Sorriso-Valvo, L.
-
Review of scientific instruments 92 (4), pp. 043556-1 - 043556-6 Year: 2021 DOI: 10.1063/5.0043669
Design of JT-60SA core Thomson scattering diagnostic system
Tojo H.; Pasqualotto R.; Fassina A.; Giudicotti L.; Sasao H.; Homma H.; Oyama N.
English
Italiano