10/19/11 Draft discussion text for further deliberations ...

The wavelengths monitored by this instrument are not specified, though Kalnajs and Avallone (2010) cite 830 nm as the detection wavelength while Stedman et al. (Stedman et al., 1972) cite 648 nm. It appears that detectors sensitive to the red to near-IR part of the spectrum are used in most method implementations (Minarro et al., 2011; Ray et ... ................
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