Charles Explorer logo
🇨🇿

Number Density Calibration of H2 by Reaction with Ar+

Publikace na Matematicko-fyzikální fakulta |
2017

Tento text není v aktuálním jazyce dostupný. Zobrazuje se verze "en".Abstrakt

The knowledge of a number density of neutral reactants is crucial for evaluation of reaction rate coefficients of ion-molecular reactions. Uncertainty of determination of the number density represents a major part in systematic uncertainty of measurements by a 22-pole radiofrequency ion trap.

We have measured a number density of H2 in the trap as a function of temperature. A beam of Ar+ passed through the trap and reacted with H2.

The product ArH+ was monitored. Owing to the knowledge of the cross section of reactants we could determine the number density of H2.

Klíčová slova