| 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 |
