6533b86ffe1ef96bd12cd151

RESEARCH PRODUCT

A new resonant Laser-SNMS system for environmental ultra-trace analysis: Installation and optimization

Clemens WaltherKlaus WendtHauke BoscoMichael FranzmannMichael Franzmann

subject

medicine.medical_specialtySpectrum analyzerNuclear forensicsNuclear engineeringchemistry.chemical_elementNanotechnology01 natural scienceslaw.inventionRadioecologylaw0103 physical sciencesmedicinePhysical and Theoretical Chemistry010306 general physicsInstrumentationSpectroscopyRadionuclideChemistrybusiness.industry010401 analytical chemistryUraniumContaminationCondensed Matter PhysicsLaser0104 chemical sciencesRadiation protectionbusiness

description

Abstract Localization, analysis and mobility of radioactive contaminated particles is of major concern for assessment of contamination threads and nuclear forensics. For this purpose, a new resonant Laser-SNMS system was developed and set up at the Institute for Radioecology and Radiation Protection for spatially resolved ultra-trace analysis of low concentrated radionuclides directly on environmental samples. This paper describes the adaption and combination of a dedicated Ti:sapphire laser system with a commercial TOF-SIMS instrument for resonant Laser-SNMS. The project includes computer simulations for optimization of the TOF analyzer. Results on synthetic uranium and technetium samples verify the expected excellent suppression of interfering isobaric contaminations.

https://doi.org/10.1016/j.ijms.2017.10.003