28 May 1993 Progress in zirconium resonance ionization spectroscopy
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Proceedings Volume 1859, Laser Isotope Separation; (1993) https://doi.org/10.1117/12.145509
Event: OE/LASE'93: Optics, Electro-Optics, and Laser Applications in Scienceand Engineering, 1993, Los Angeles, CA, United States
We have examined the stepwise-resonant three-photon-ionization spectrum of neutral Zirconium atoms using three separately-tunable pulsed visible dye lasers. The ground-level (first-step) transitions were chosen on the basis of demonstrated 91Zr selectivity. Lifetimes of even-parity levels around 36000 cm-1, measured with the delayed- photoionization technique, range from 10 to 100 nsec. Direct ionization cross sections appear to be less than 10-17 cm2; newly-detected autoionizing levels give peak ionization cross sections (inferred from saturation fluences) up to 10-15 cm2. Portions of Rydberg series converging to the 315 and 763 cm-1 levels of Zr+ were identified. 'Clumps' of autoionizing levels are thought to be due to Rydberg-valence mixing.
© (1993) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Ralph H. Page, Ralph H. Page, Stephen C. Dropinski, Stephen C. Dropinski, Earl F. Worden, Earl F. Worden, J. A. D. Stockdale, J. A. D. Stockdale, "Progress in zirconium resonance ionization spectroscopy", Proc. SPIE 1859, Laser Isotope Separation, (28 May 1993); doi: 10.1117/12.145509; https://doi.org/10.1117/12.145509

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