ABSTRACT Recent analyses of nebular spectra have resulted in discrepant abundances from CNO forbidden and recombination lines. We consider independent methods of determining ion abundances for ...

Coblentz left no stone unturned – he measured spectra in transmission and in reflection. He even measured the emission ...

Optical Emission Spectroscopy (OES) is a widely used analytical technique used to determine the elemental composition of a broad range of metals. It is an extremely time-efficient and accurate method ...

This is a preview. Log in through your library . Abstract An apparatus is described in which an Ulbricht sphere was used in conjunction with a grating monochromator to measure absorption and ...

In a new publication from Opto-Electronic Advances; DOI 10.29026/oea.2022.210036, authors from the Laser Engineering Group in the School of Engineering at the University of Liverpool, Liverpool, ...