6533b7d2fe1ef96bd125f3c1
RESEARCH PRODUCT
Resonance ionization mass spectrometry for ultratrace analysis of plutonium with a new solid state laser system
G. HuberP. KloppPeter KunzC. GrüningJ. V. KratzKlaus WendtNorbert TrautmannA. WaldekGerd Passlersubject
Detection limitIsotopeChemistryRadiochemistryAnalytical chemistrychemistry.chemical_elementThermal ionization mass spectrometryCondensed Matter PhysicsLaserMass spectrometrylaw.inventionPlutoniumSolid-state laserlawIonizationPhysical and Theoretical ChemistryInstrumentationSpectroscopydescription
Abstract Resonance ionization mass spectrometry (RIMS) is well-suited for isotope selective ultratrace analysis of long-lived radioactive isotopes due to its high element and isotope selectivity and good sensitivity. For the analysis of plutonium with a pulsed RIMS apparatus, a powerful, reliable and easy to handle Nd:YAG pumped titanium–sapphire laser system has been developed and combined with a time-of-flight mass spectrometer. Spectroscopic measurements led to an efficient three step excitation and ionization scheme for plutonium with λ1 = 420.76 nm, λ2 = 847.28 nm, and λ3 = 767.53 nm. The isotope shifts in this scheme for the plutonium isotopes 238 Pu through 244 Pu have been determined. An overall efficiency of the RIMS apparatus of 1 × 10−5 is routinely achieved resulting in a detection limit of 2 × 106 atoms of plutonium for single isotope measurements. The application of RIMS for isotope ratio measurements is outlined.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2004-07-01 | International Journal of Mass Spectrometry |