Lu and Pr beam development for resonance ionization laser ion sources

• Published in: Spectrochimica acta. Part B: Atomic spectroscopy Vol. 158; p. 105633
• Main Authors: Li, R., Lassen, J., Kunz, P., Mostamand, M., Reich, B.B., Teigelhöfer, A., Yan, H., Ames, F.
• Format: Journal Article
• Language: English
• Published: Oxford Elsevier B.V 01.08.2019; Elsevier BV
• Subjects: Autoionizing state; Ion beams; Ion sources; Ionization; Ions; Isotopes; Laser beams; Lasers; Lutetium; Praseodymium; Radioisotopes; Resonance; Resonance ionization spectroscopy; Rydberg state; Rydberg states; Sapphire; Test stands; Titanium; Rydberg state; Resonance ionization spectroscopy; Autoionizing state; Lutetium; Praseodymium
• ISSN: 0584-8547; 1873-3565
• DOI: 10.1016/j.sab.2019.06.003

Resonance Ionization Laser Ion Sources (RILIS) are efficient and element selective ion sources, which are well suited for radioactive ion beam facilities. Using TRIUMF's off-line laser ion source test stand with a system of tunable titanium sapphire (Ti:Sa) lasers, laser resonance ionization schemes for lutetium (Lu) and praseodymium (Pr) have been investigated with a particular focus on autoionizing states. New ionization schemes via Rydberg states and autoionizing states were found and compared at the off-line test stand. The data from on-line RILIS delivery of Lu radioactive isotopes is presented. [Display omitted] •New resonant ionization schemes for Lu and Pr have been found and compared.•Observed a temperature dependence of the ionization efficiency of Rydberg states of Lu•Rydberg state scheme was found infeasible on ion-guide laser-ion-source (IG-LIS).•Multi-photon ionization of molecules was observed with a 532 nm pulsed laser.