Abstract
A high resolution (λ∕Δλ∼2000) soft x-ray spectrometer has been installed on the Alcator C-Mod tokamak. The system was designed to measure emission line spectra from heliumlike neon (1s12p1→1s2) in a narrow spectral band centered on λ=13.5Å (920eV). The instrument is mounted with a poloidal view 20cm below the midplane (r∕a∼0.85). In addition to the neon emission lines, strong fluorine, xenon, iron, and manganese lines have been observed.
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