Production of rotationally cold methyl radicals in pulsed supersonic beams

Abstract

We present a comparison of two technically distinct methods for the generation of rotationally cold, pulsed supersonic beams of methyl radicals (CH3): a plate discharge source operating in the glow regime, and a dielectric barrier discharge source (DBD). The results imply that the efficiency of both sources is comparable, and that molecular beams with similar translational and rotational temperatures are formed. Methane (CH4) proved to be the most suitable radical precursor species.

References in corpus (2)

• Magnetic Trapping of Cold Methyl Radicals
• A pulsed, low-temperature beam of supersonically cooled free radical OH molecules

Cited by in corpus (7)

• Penning collisions between supersonically expanded metastable helium atoms and laser-cooled lithium atoms
• Optical Quenching of Metastable Helium Atoms using Excitation to the $4P$ State
• Development and characterization of high-frequency sources for supersonic beams of fluorine radicals
• Single-Source, Collinear Merged-Beam Experiment for the Study of Reactive Neutral-Neutral Collisions
• Preparation of individual magnetic sub-levels of ${}^4$He($2^3$S${}_1$) in a supersonic beam using laser optical pumping and magnetic hexapole focusing
• A novel crossed-molecular-beam experiment for investigating reactions of state- and conformationally selected strong-field-seeking molecules
• Sensitive detection of metastable NO and \ce{N2} by reactive collisions with laser-excited Li