Bulletin of the American Physical Society
55th Annual Meeting of the APS Division of Atomic, Molecular and Optical Physics
Monday–Friday, June 3–7, 2024; Fort Worth, Texas
Session K00: Poster Session II (4pm-6pm CDT)
4:00 PM,
Wednesday, June 5, 2024
Room: Hall BC
Abstract: K00.00015 : Analysis and identification of extreme-ultraviolet transitions in highly charged Nb ions*
Presenter:
Leiyla S Brent
(Loyola University Maryland)
Authors:
Leiyla S Brent
(Loyola University Maryland)
David Salgado
(Appalachian State University)
Jessica Gerac
(Appalachian State University)
Hunter W Staiger
(Clemson University)
Yuri Ralchenko
(National Institute of Standards and Technology)
Endre Takacs
(Clemson University)
Roshani Silwal
(Appalachian State University)
the National Institute of Standards and Technology [1]. Emissions in the extreme-
ultraviolet (EUV) region were recorded with a flat-field grazing incidence EUV
spectrometer [2] and analyzed to identify new transitions from the Nb ions. The
electron beam energies were varied between 4.5 keV and 8.1 keV to create the
ionization level of interest. Highly charged Ne, Xe and Ba ions were used to
calibrate the EUV spectra to a wavelength region of 2-17 nm. Several new electric-
dipole and magnetic-dipole transitions from Li-like Nb 38+ to Na-like Nb 30+ were
identified by comparison with theoretical spectra created using a collisional
radiative non-Maxwellian code NOMAD.
[1] J. D. Gillaspy, Phys. Scr. T 71, 99 (1997).
[2] B. Blagojević et al., Rev. Sci. Instrum. 76, 083102 (2005).
*NIST Award #70NANB23H123, NSF Award #2309274
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