NEXAFS spectroscopy and spectromicroscopy with laser-produced plasma sources of soft X-ray radiation

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F18%3A00327874" target="_blank" >RIV/68407700:21340/18:00327874 - isvavai.cz</a>

Výsledek na webu

<a href="http://spie.org/Publications/Proceedings/Paper/10.1117/12.2518237" target="_blank" >http://spie.org/Publications/Proceedings/Paper/10.1117/12.2518237</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1117/12.2518237" target="_blank" >10.1117/12.2518237</a>

Jazyk výsledku

angličtina

Název v původním jazyce

NEXAFS spectroscopy and spectromicroscopy with laser-produced plasma sources of soft X-ray radiation

Popis výsledku v původním jazyce

In this work, a near edge X-ray fine structure spectroscopy (NEXAFS) based on a laser-plasma compact soft X-ray (SXR) source is presented. The NEXAFS spectrum was acquired simultaneously for all energies near the absorption edge, using a broadband emission from krypton plasma, in contrary to the existing, synchrotron-based spectroscopic systems. In such SXR source, a plasma is produced by an interaction of a laser beam with a double stream gas puff target. The plasma efficiently emits SXR radiation from 2-5 nm wavelength (250-620 eV photon energy). Such broadband emission allows acquiring simultaneously a sample and a reference spectra, to obtain optical density spectrum of the sample near C-Kα absorption edge, due to a special construction of the SXR spectrometer. The NEXAFS spectra were obtained using PET polymer test sample, from both, the large area and spatially localized to ~30x30 μm2 area. The spatially localized spectra were used to construct 2-D spectromicroscopic maps of sample constituents. Single-shot spectra were also acquired with laser pulse energies of ~10 times larger than in the case of multiple exposures. A short overview of those NEXAFS experiments will be presented.

Název v anglickém jazyce

NEXAFS spectroscopy and spectromicroscopy with laser-produced plasma sources of soft X-ray radiation

Popis výsledku anglicky

In this work, a near edge X-ray fine structure spectroscopy (NEXAFS) based on a laser-plasma compact soft X-ray (SXR) source is presented. The NEXAFS spectrum was acquired simultaneously for all energies near the absorption edge, using a broadband emission from krypton plasma, in contrary to the existing, synchrotron-based spectroscopic systems. In such SXR source, a plasma is produced by an interaction of a laser beam with a double stream gas puff target. The plasma efficiently emits SXR radiation from 2-5 nm wavelength (250-620 eV photon energy). Such broadband emission allows acquiring simultaneously a sample and a reference spectra, to obtain optical density spectrum of the sample near C-Kα absorption edge, due to a special construction of the SXR spectrometer. The NEXAFS spectra were obtained using PET polymer test sample, from both, the large area and spatially localized to ~30x30 μm2 area. The spatially localized spectra were used to construct 2-D spectromicroscopic maps of sample constituents. Single-shot spectra were also acquired with laser pulse energies of ~10 times larger than in the case of multiple exposures. A short overview of those NEXAFS experiments will be presented.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

10306 - Optics (including laser optics and quantum optics)

Projekt

<a href="/cs/project/LTT17015" target="_blank" >LTT17015: Výzkum v rámci Mezinárodního centra hustého magnetizovaného plazmatu</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Laser Technology 2018: Progress and Applications of Lasers

ISBN

978-1-5106-2604-1

ISSN

—

e-ISSN

0277-786X

Počet stran výsledku

6

Strana od-do

—

Název nakladatele

SPIE

Místo vydání

Montréal

Místo konání akce

Jastarnia

Datum konání akce

25. 9. 2018

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000455053600037