6533b7d7fe1ef96bd12682aa

RESEARCH PRODUCT

Laser resonant ionization of plutonium

P. PeuserNorbert TrautmannK. WallmerothH.-j. KlugeJ. BonnU. KrönertW. Ruster

subject

Dye laserMaterials sciencePhysics and Astronomy (miscellaneous)SpectrometerGeneral EngineeringGeneral Physics and AstronomyResonancechemistry.chemical_elementPhotoionizationLaserMass spectrometrylaw.inventionPlutoniumchemistrylawIonizationPhysics::Atomic and Molecular ClustersPhysics::Atomic PhysicsAtomic physics

description

Resonance ionization mass spectrometry (RIMS) has been tested for the isotope-selective determination of trace amounts of plutonium. An atomic beam is formed by evaporating plutonium atoms from a rhenium-filament heated to 1800 °C. The radiation of a pulsed dye laser excites the atoms in a two-photon process (λ=595.2 nm) followed by photoionization of the excited atoms. Mass selectivity is obtained by use of a time-of-flight spectrometer. A resonant signal of239Pu was measured with 1013 atoms deposited on the filament.

https://doi.org/10.1007/bf00691772