holder

The following is an abstract for the selected article. A PDF download of the full text of this article is available here. Members may download full texts at no charge. Non-members may be charged a small fee for certain articles.


Application of Optogalvanic Spectroscopy to the Measurement of Pressure Broadening and Shift in the Negative Glow Region of an Ar Hollow Cathode Discharge

Volume 42, Number 1 (Jan. 1988) Page 54-56

Masaki, Takashi; Adachi, Yukio; Hirose, Chiaki


Optogalvanic spectroscopy has been applied to the measurement of the pressure broadening and frequency shift of the Ar 7d[5/2]3-4p[3/2]2 transition in the negative glow region of a hollow cathode discharge at gas pressures from 1 to 6 Torr and discharge currents from 12 to 20 mA. The neutral atoms have been found to be the dominant collision partners to the argon atoms in the excited state, and the values of β = (3.9 ± 0.2) × 10−3 cm−1 Torr and δ = −(3.9 ± 0.2) × 10−3 cm−1/Torr have been derived as the coefficients of the pressure broadening and shift, respectively.