radial viewing mode

https://doi.org/10.1351/goldbook.08535
Inductively-coupled plasma optical emission spectrometer configuration in which the plasma and the entrance slit are perpendicular and from which the signal is taken perpendicularly to the main plasma axis.
Note:
This configuration yields lower sensitivities than the axial viewing mode.
Source:
PAC, 2021, 93, 647. (Glossary of methods and terms used in analytical spectroscopy (IUPAC Recommendations 2019)) on page 731 [Terms] [Paper]