Enhancement of K-shell spectroscopy for temperature measuring of isochorically heated matter in the sub-keV range. (1st May 2023)

• Record Type: Journal Article
• Authors: Martynenko, A S; Pikuz, T A; Skobelev, I Yu; Pikuz, S A; Iwata, N; Johzaki, T; Kawanaka, J; Law, K F F; Fujioka, S; Kodama, R; Morace, A
• Is Part Of: Plasma physics and controlled fusion. Volume 65:Number 5(2023)
• Publication Date: 2023-05-01
• Subjects: K-shell spectroscopy -- x-ray emission spectroscopy -- laser-accelerated ions -- ion heating -- isochoric heating -- warm dense matter -- plasma diagnostics; Plasma (Ionized gases) -- Periodicals; Controlled fusion -- Periodicals; 530.44
• DOI: 10.1088/1361-6587/acc357
• Languages: English
• ISSNs: 0741-3335

Abstract

Abstract: Both K-shell x-ray emission spectroscopy and fluorescence spectroscopy are well-accepted diagnostics for experimental studies of warm dense matter and hot dense matter (HDM). Until now, however, this diagnosis has been used for the study of dense matter with temperatures lower than 100 eV or with temperatures above 1 keV. In this work, we have demonstrated the possibility of using K-shell emission spectroscopy for an intermediate temperature range of 100s eV to study dense plasma. Here, we discuss an analysis of the HDM emission spectra of a solid-state copper with temperatures up to a few hundreds of electronvolts heated by laser-accelerated charged particles.