The Quenching of Cadmium Resonance Radiation (3261A) by Hydrocarbons and Other Gases

Abstract

An investigation has been made of the quenching of cadmium resonance radiation (3261A) by a number of hydrocarbons and other gases. The following values of the quenching cross sections were obtained (in cm² × 10¹⁶): $$\begin{array}{ccccc}{\mathrm{H}}_2& \text{\hspace{0.17em}3.54}& 1{\mathrm{-C}}_4{\mathrm{H}}_8& \text{35.2}& {\mathrm{C}}_2{\mathrm{H}}_6\\ {\mathrm{D}}_2& \text{\hspace{0.17em}1.80}& 2{\mathrm{-C}}_4{\mathrm{H}}_8& \text{30.6}& {\mathrm{C}}_3{\mathrm{H}}_8\\ {\mathrm{NH}}_3& \text{\hspace{0.17em}0.052}& {\mathrm{C}}_6{\mathrm{H}}_6& \text{28.4}& n{\mathrm{-C}}_4{\mathrm{H}}_{10}\\ {\mathrm{C}}_2{\mathrm{H}}_4& \text{24.9}& {\mathrm{C}}_2{\mathrm{H}}_2& \text{22.0}& {\mathrm{iso-C}}_4{\mathrm{H}}_{10}\\ {\mathrm{C}}_3{\mathrm{H}}_6& \text{29.1}& \mathrm{cyclopropane}& \text{0.71}& \end{array}\}\mathrm{ca.\; 0.02}$$ A few rough measurements have also been made with λ2288.