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PUBLICATIONS

High resolution X-ray Spectra of the Time Evolution of Emission from Metastable Electronic States of Highly Charged Ni-like Ions

Published

Author(s)

Timothy Burke, Endre Takacs, Dipti Dipti, Adam Hosier, Galen O'Neil, Hunter Staiger, Joseph N. Tan, Aung S. Naing, Joan Marler, Yuri Ralchenko

Abstract

Metastable levels of highly charged ions that can only decay via highly forbidden transitions can have a significant effect on the properties of high temperature plasmas. For example the highly forbidden 3d10 J=0 - 3d94s ( 5 2 , 1 2 )J=3 magnetic octupole (M3) transition in nickel-like ions can result in a large metastable population of its upper level which can then be ionized by electrons of energies below the ground state ionization potential. We present a method to study metastable electronic states in highly charged ions (HCIs) that decay by x-ray emission in electron beam ion traps (EBIT). The time evolution of the emission intensity can be used to study the parameters of ionization balance dynamics and the lifetime of metastable states. The temporal and energy resolution of a new transition-edgesensor (TES) microcalorimeter array enables these studies at the National Institute of Standards and Technology (NIST) EBIT.
Citation
European Physical Journal D
Pub Type
Journals

Keywords

highly charged ion, x-ray, tes, metastable, qed
Physics and Atomic / molecular / quantum

Citation

Burke, T. , Takacs, E. , Dipti, D. , Hosier, A. , O'Neil, G. , Staiger, H. , Tan, J. , Naing, A. , Marler, J. and Ralchenko, Y. (2024), High resolution X-ray Spectra of the Time Evolution of Emission from Metastable Electronic States of Highly Charged Ni-like Ions, European Physical Journal D (Accessed October 14, 2025)

Issues

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Created June 25, 2024, Updated August 2, 2024
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