Investigation of Optical Ionization of Strontium via 5s21S0 ⟶ 5s5p 3P1° ⟶ 5s5d 3D2 ⟶ 4dnp (or 4ndf, n = 39) for Isotope Selectivity Enhancement-Reference-Cited by-同舟云学术

Investigation of Optical Ionization of Strontium via 5s21S0 ⟶ 5s5p 3P1° ⟶ 5s5d 3D2 ⟶ 4dnp (or 4ndf, n = 39) for Isotope Selectivity Enhancement

Published:2018-10-28 Issue: Volume:2018 Page:1-6
ISSN:2314-4920
Container-title:Journal of Spectroscopy
language:en
Short-container-title:Journal of Spectroscopy

Author:

Cheon Donguk¹^ORCID,Iwata Yoshihiro²^ORCID,Miyabe Masabumi³,Wakaida Ikuo³,Hasegawa Shuichi¹²^ORCID

Affiliation:

1. Department of Nuclear Engineering and Management, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan

2. Nuclear Professional School, The University of Tokyo, Shirakata-shirane 2-22, Tokai-mura, Naka-gun, Ibaraki 319-1188, Japan

3. Remote Analytical Technology Group, Collaborative Laboratories for Advanced Decommissioning Sciences, Japan Atomic Energy Agency, Shirakata-shirane 2-4, Tokai-mura, Naka-gun, Ibaraki 319-1195, Japan

Abstract

We investigated a promising three-step resonance ionization scheme of strontium (Sr) 5s21S0 ⟶ 5s5p 3P1° ⟶ 5s5d 3D2 ⟶ 4dnp (or 4dnf, n = 39) using the first-step intercombination transition for the enhancement of isotope selectivity. The power broadening observed in the 2nd transition indicates that laser power of less than 0.2 mW is sufficient for saturating this transition. Isotope separation can be successfully expected with application of the 3rd transition due to the narrow width of the 4dnp (or 4dnf, n = 39) autoionization level, paving the way for analysis of trace 90Sr in environmental applications.

Funder

Japan Society for the Promotion of Science

Publisher

Hindawi Limited

Subject

Spectroscopy,Atomic and Molecular Physics, and Optics,Analytical Chemistry

Link

http://downloads.hindawi.com/journals/jspec/2018/5612360.pdf

Reference27 articles.

1. Controls on stable strontium isotope fractionation in coccolithophores with implications for the marine Sr cycle

2. Strontium concentration, radiogenic (87Sr/86Sr) and stable (δ88Sr) strontium isotope systematics in a controlled feeding study

3. Evaluating the use of strontium isotopes in tree rings to record the isotopic signal of dust deposited on the Wasatch Mountains