Preliminary results from the soft x-ray crystal spectrometer on Alcator C-Mod

Ince-Cushman, A.; Rice, J. E.; Lee, S. G.; Bitter, M.; Reinke, M.; Podpaly, Y.
October 2006
Review of Scientific Instruments;Oct2006, Vol. 77 Issue 10, p10F321
Academic Journal
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=13.5 Å (920 eV). The instrument is mounted with a poloidal view 20 cm 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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