title: Depth profiling of metallic coatings evaluated from spatially-resolved measurement in glow discharge optical emission spectrometry.
abstract: A two-dimensionally imaging spectrometer system was employed to measure spatial emission images of a glow discharge plasma in atomic emission spectrometry. The emission intensities were not uniform in the radial direction of the plasma region, but yielded a characteristic distribution from the central portion towards the surrounding zone in the plasma. Temporal variations in the emission images were observed when a zinc-coated steel plate and a thermally-deposited copper film were employed as the sample. Depth profiles of these surface layers, estimated from the emission images, were compared among different integration areas of the emission intensities.
authors.affiliation: Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Sendai 980-8577, Japan.
authors.forename: Yoshitaka
authors.initials: Y
authors.lastname: Zenitani
authors.forename: Fuyuki
authors.initials: F
authors.lastname: Sakamoto
authors.forename: Kazuaki
authors.initials: K
authors.lastname: Wagatsuma