Work

Investigation of ultraviolet spectrum and energy level assignments of Gd I in the 305–325nm region

Year: 2025

Type: article

Abstract: The ultraviolet spectrum of Gd I in the 305–325 nm range was studied using resonance ionization spectroscopy, revealing 196 transition lines, including 66 strong ones. The lower and upper energy levels were assigned to 190 lines by combining data from the NIST Atomic Spectra Database with pump–probe verification, 172 of which are reported for the first time. Seventeen new even-parity high-lying excited states were also identified. The strong lines reported here will contribute to future studies of Gd I Rydberg and autoionization states and enable two-color, two-step photoionization pathways for isotope separation and RIMS analysis.

Source: Journal of Quantitative Spectroscopy and Radiative Transfer

DOI: 10.1016/j.jqsrt.2025.109731

Authors: Yun-Fei Li, Jun-Yao Zhang, Jing-Yi Xiong, Kai-Chen Ma, Li-De Wang, Cai-Hua Zhu

Language: English

Topic: Atomic and Molecular Physics

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $2,870

Funder: Tianjin Science and Technology Program

Award: G3689572342