Offline ion source for laser spectroscopy of RI at the SLOWRI

The ion source combining laser ablation of solid targets in helium gas and an RF ion guide system with an RF carpet was constructed for a reference measurement of isotope shifts. It is important for performing planned collinear laser spectroscopy of RI beams from the SLOWRI facility at RIKEN, especi...

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Bibliographic Details
Published in:Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms Beam interactions with materials and atoms, 2021-01, Vol.486, p.48-54
Main Authors: Tajima, M., Takamine, A., Wada, M., Ueno, H.
Format: Article
Language:English
Subjects:
Ion guide
Isotope shift
Laser ablation
Laser spectroscopy
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Summary:The ion source combining laser ablation of solid targets in helium gas and an RF ion guide system with an RF carpet was constructed for a reference measurement of isotope shifts. It is important for performing planned collinear laser spectroscopy of RI beams from the SLOWRI facility at RIKEN, especially for medium-mass nuclei of refractory elements. They are difficult to produce via the ISOL method owing to the chemical properties of the elements. The laser-ablated ions of Ni, Zr, Ag, Ta, W, and Ba were transported by the ion guide and mass spectra consistent with the natural abundance were successfully observed corresponding to 105–107 ions per laser pulse.
ISSN:0168-583X
1872-9584
DOI:10.1016/j.nimb.2020.10.013