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Journal article

Validating continuum lowering models via multi-wavelength measurements of integrated x-ray emission

Abstract:
X-ray emission spectroscopy is a well-established technique used to study continuum lowering in dense plasmas. It relies on accurate atomic physics models to robustly reproduce high-resolution emission spectra, and depends on our ability to identify spectroscopic signatures such as emission lines or ionization edges of individual charge states within the plasma. Here we describe a method that forgoes these requirements, enabling the validation of different continuum lowering models based solely on the total intensity of plasma emission in systems driven by narrow-bandwidth x-ray pulses across a range of wavelengths. The method is tested on published Al spectroscopy data and applied to the new case of solid-density partially-ionized Fe plasmas, where extracting ionization edges directly is precluded by the significant overlap of emission from a wide range of charge states.
Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1038/s41598-018-24410-2

Authors


More by this author
Institution:
University of Oxford
Division:
MPLS Division
Department:
Physics; Atomic & Laser Physics
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS Division
Department:
Physics; Atomic & Laser Physics
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Atomic & Laser Physics
Oxford college:
St Peter's College
Role:
Author


Publisher:
Springer Nature
Journal:
Scientific Reports More from this journal
Volume:
8
Article number:
6276
Publication date:
2018-04-19
Acceptance date:
2018-03-26
DOI:
ISSN:
2045-2322


Keywords:
Pubs id:
pubs:824013
UUID:
uuid:f37c1444-62c8-4bbd-87a9-c4b7dc4f2da8
Local pid:
pubs:824013
Source identifiers:
824013
Deposit date:
2018-02-20

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