This paper presents a brief description of the technical parameters of the VM-70 spectrophotometer, which operates in flow-through mode with atmospheric and inert gases: nitrogen, hydrogen, neon, helium, and argon. Recordings are presented with the emission spectra of titanium, nitrogen, helium, and hydrogen.
N. G. Gerasimova, "The VM-70 spectrophotometer," J. Opt. Technol. 70, 201-203 (2003)