High resolution spectroscopy of the [18.0]2Π3/2 - X2Σ+ transition of thorium nitride, ThN

Le, Anh T.

Permalink

https://hdl.handle.net/2142/100680 Copy

Description

Title

High resolution spectroscopy of the [18.0]2Π3/2 - X2Σ+ transition of thorium nitride, ThN

Author(s)

Le, Anh T.

Contributor(s)

• Cheng, Lan
• Steimle, Timothy
• Nguyen, Duc-Trung

Issue Date

2018-06-20

Keyword(s)

Metal containing

Abstract

Serious draw backs to nuclear power include long-term nuclear waste storage and amelioration of the existing waste. The 4% enriched uranium fuel used in a typical light water reactor is converted to spent nuclear fuel (SNF) made up of 3% fission products, of which ∼30% are lanthanides (Ln), and 1% transuranium actinide (Ac) elements Np, Pu, Am and Cm. Partitioning of the Ln from the Ac present in the SNF by developing element-specific ligands for solvent extraction is a one of the most challenging facet of nuclear waste processing.b Systematic experimental and theoretical studies of simple Ac and Ln containing molecules is one avenue for garnering insight into element-specific ligation.c As part of an effort to establish trends in Th-X bonding, a combined experimental and theoretical study of ThN has been undertaken. High-resolution (∼30MHz) LIF spectroscopy, both field-free and in the presence of static magnetic and electric fields, were recorded. A strong band near 555 nm, which was not previously detected via REMPI spectroscopy b has been assigned to a [18.0]2Π3/2 - 2Σ + transition. The determined fine structure parameters, electric dipole moments, and magnetic g-factors will be discussed in terms of the present, and previousb , ab initio predictions.

Publisher

International Symposium on Molecular Spectroscopy

Type of Resource

text

Language

eng

Permalink

http://hdl.handle.net/2142/100680

DOI

10.15278/isms.2018.WF08

Copyright and License Information

Copyright 2018 Anh T. Le

Owning Collections