TJ-II:Helium Beam
TJ-II possesses a supersonic Helium beam diagnostic based on the line ratio method. [1] [2] [3] It is located at φ = 85.3º (sector A8). It provides profiles of the electron temperature and density in the plasma edge at a repetition rate of up to 200 Hz.
References
- ↑ B. Brañas at al., Atomic beam diagnostics for characterization of edge plasma in TJ-II stellarator, Rev. Sci. Instrum. 72, 602 (2001)
- ↑ A. Hidalgo et al., Multipulse supersonic helium beam diagnostic in the TJ-II stellarator, Rev. Sci Instrum. 75, 3478 (2004)
- ↑ F. Guzmán et al, On the determination of edge Ti profiles by a supersonic He beam in TJ-II, Journal of Nuclear Materials 390-391 (2009) 1127-1130