Polychromators in the ultraviolet/infrared (350–750 nm) spectral range for high-resolution, high sensitivity plasma spectroscopy (abstract)

The necessity of measuring different impurity lines at the same time with a good spectral resolution and high sensitivity has led to the construction of two filter polychromators working in the range of 350/750 nm and detecting lines emitted by metals (Ni,Fe,Mo,Cr) as well as light impurities (O,He,C), respectively. The Hα line at 656.3 nm is detected by both devices, since it could be very important to compare the results of the measurements with data given by other diagnostics operating in the same spectral range.