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TJ-II:Helium Beam: Difference between revisions
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(Hamamatsu, model R5900U-20-L16) with interference filters | (Hamamatsu, model R5900U-20-L16) with interference filters | ||
(FWHM = 1 nm). | (FWHM = 1 nm). | ||
<ref> | <ref>B. Brañas et al., ''Atomic beam diagnostics for characterization of edge plasma in TJ-II stellarator'', [[doi:10.1063/1.1319868|Rev. Sci. Instrum. '''72''', 602 (2001)]]</ref> | ||
A Collisional Radiative (CR) model for the line emission intensity ratios is used | A Collisional Radiative (CR) model for the line emission intensity ratios is used | ||
to deduce electron densities and temperatures. | to deduce electron densities and temperatures. | ||
<ref name="Hidalgo"> | <ref name="Hidalgo">A. Hidalgo et al., ''Multipulse supersonic helium beam diagnostic in the TJ-II stellarator'', [[doi:10.1063/1.1779617|Rev. Sci Instrum. '''75''', 3478 (2004)]]</ref> | ||
<ref name="Guzman"> | <ref name="Guzman">F. Guzmán et al, ''On the determination of edge Ti profiles by a supersonic He beam in TJ-II'', [[doi:10.1016/j.jnucmat.2009.01.290|Journal of Nuclear Materials '''390-391''' (2009) 1127-1130]]</ref> | ||
It provides profiles of the electron temperature and density in the plasma edge at a repetition rate of up to 200 Hz. | It provides profiles of the electron temperature and density in the plasma edge at a repetition rate of up to 200 Hz. | ||