Abstract
RIMSKI - Resonance Ionization Mass Spectrometer for Krypton Isotopes - is a newly developed ultra sensitive instrument with a cryogenic sample concentrator and a laser ion source designed for isotopic analysis of extraterrestrial material. Laser heating is used for extraction of krypton from samples into the mass spectrometer volume. Atoms continuously condense on a cold spot in the ion source, and are repeatedly released by laser heating. They are ionized in the evaporation plume using three tunable dye lasers and one frequency tripled Q-switched Nd:YAG laser. Two resonant transitions are employed (at 116.5 nm, produced by four-wave frequency mixing in Xe, and 558.1 nm) and are followed by single photon ionization at 1064 nm. Multiple analyses of air aliquots and
Original language | English |
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Pages (from-to) | 1763-1772 |
Number of pages | 10 |
Journal | Journal of Analytical Atomic Spectrometry |
Volume | 26 |
Issue number | 9 |
Early online date | 13 Jun 2011 |
DOIs | |
Publication status | Published - Sept 2011 |