Measurement of the Ar(1sy) state densities by two OES methods in Ar-N2 discharges

ISOLA, LUCIO M.; LÓPEZ, MAIA M.; CRUCEÑO, JAVIER M.; CRUCEÑO, JAVIER M.

PLASMA SOURCES SCIENCE & TECHNOLOGY (PRINT)

IOP PUBLISHING LTD

Lugar: Londres; Año: 2014 vol. 23 p. 1 - 9

0963-0252

In this work, results from two methods for the determination of the Ar(1sy) densities are compared in an Ar-N2 discharge. These methods involve measurements of optical emission spectroscopy (OES). The first method (band method) uses the bands belonging to the N2(C → B) Second Positive System (SPS), while the second method (branching fraction method) uses the line intensities corresponding to the Ar(2px → 1sy) transitions. These techniques were tested in the negative glow of DC discharge and the results show remarkable agreement.