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Multichord vibration compensated MIR interferometer for density measurement

Main features Associated advantages
´╗┐Triple multichord interferometer´╗┐ High system reliability thanks to 3 fully independent modules
Mid-Infra Red (MIR) system (CO2 laser 10.6 micron) Small beam diameter for high space resolution & compact system
Two multichord modules (A and B) at one port mounted on Accurate density profile measure (presently 13 chords)
Granite C-frame with carriage system Easy alignment away from machine
2-chord module (C) at pellet injector port, 120┬░ toroidally from A and B modules Study local pellet ablation & toroidal propagation of density perturbations
40 MHz heterodyne system Fast response (>1MHz bandwidth)
Vibration compensation @3.4 or 5.4 micron High immunity to vibrations and optics damage
Beam reflection by in-vessel mirrors/corner cubes Outermost chords at only 21 mm from first wall

Drawing of the three interferometer modules and RFX device

EUROPEAN DOCTORATE IN FUSION

A European Doctoral initiative on Fusion Science and Engineering has been undertaken among the Universities of Padova, Lisbon and Munich aiming at combining two formal participation modalities in the same Doctoral programme course.

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In this section, a combination of different educational and information content is given. Here you can download, for personal use, photo collections, videos, textbooks and brochures on fusion science and technology and on research at Consorzio RFX.

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