6533b7dafe1ef96bd126df62
RESEARCH PRODUCT
Trapped ion density distribution in the presence of He-buffer gas
H. SchaafG. WerthU. Schmelingsubject
Condensed Matter::Quantum GasesThermal equilibriumMaterials scienceBuffer gasGeneral EngineeringGeneral ChemistryIon gunIonTrap (computing)Distribution (mathematics)Physics::Plasma PhysicsIon densityQuadrupoleGeneral Materials SciencePhysics::Atomic PhysicsAtomic physicsdescription
The spatial density distribution of Ba+ ions, confined in a rf quadrupole trap, has been measured by laser scanning across the trap. This allows to determine the ion temperature, assuming thermal equilibrium. Under UHV conditions the average ion energy has been found to be one tenth of the trap potential well depth. Collisions with He at pressures up to 5×10−6 mbar reduce the ion temperature by a factor of 3.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1981-07-01 | Applied Physics |