Selectivity and Efficiency of Laser Isotope Separation Processes of Gadolinium

Abstract

Isotopic selectivity and ionization efficiency are discussed in the isotope separation processes of Gd based on polarization selection rules and based on isotope shift. Enrichment of 157 Gd to 90% was experimentally demonstrated using both methods together. The features of the absorption spectra of Gd in yellow-red and blue regions were summarized. Absorption spectra that are suitable for separation process using isotope shift were examined and an obtainable selectivity and efficiency are quantitatively calculated.

High-useful yield and new autoionizing state of resonantly ionized tungsten

“…The enhancement seen in 183 W is significantly less than the well-documented enhancement of odd isotopes for resonance ionization of Gd, Ti, and Os. 20,25,26 When analyzing samples of unknown composition small isotopic fractionations such as these are easily corrected by normalization with standard materials. The important point here is that, as shown in Fig.…”

Properties of a Pulsed Ti:Sapphire Laser Oscillator with an Extended Standing-Wave Cavity

“…The excitation laser needs to have a linewidth sufficiently narrower than the isotope shift for selective photoionization or photoinduced chemical reaction, 5) if a separation method based on the polarization selection rule 6) or the Doppler shift effect 7) is not applicable.…”