Publication at Faculty of Mathematics and Physics |
2011
Abstract
The temperature dependence of the rate coecient of the associative detachment reaction (H + H ! H2 + e) was studied using the Atomic Beam| 22-pole Trap Apparatus (AB-22PT). A discrepancy between the data measured at dierent combinations of ion and atom temperatures was observed.
This contribution discusses various imperfections of the 22-pole trap as possible causes of this eect. Numerical models of these imperfections are compared to the experimental data.
The measured discrepancy is best explained by a presence of few millivolt patch eld on the surface of the 22-pole rods.