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 September 26, 2024)
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High resolution X-ray Spectra of the Time Evolution of Emission from Metastable Electronic States of Highly Charged Ni-like Ions
Published
Author(s)
, , Dipti Dipti, , , , , , Joan Marler,
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
Citation
Issues
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Created June 25, 2024, Updated August 2, 2024