K-shell spectroscopy of silicon ions as diagnostic for high electric fields

Loetzsch, R.; Jäckel, O.; Höfer, Sebastian; Kämpfer, T.; Polz, J.; Uschmann, I.; Kaluza, Malte C.; Förster, E.; Stambulchik, E.; Kroupp, E.; Maron, Y.

doi:10.1063/1.4767452

Cited by 3 publications

(3 citation statements)

References 29 publications

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“…For our setup, simulations showed that for the given experimental parameters and detected spectra, the introduced correction for the absorption would be sufficient to obtain reliable data. As we used no wavelength dispersive elements for measuring the continuous X-ray spectra, we had to ensure that our detectors operated in the "single-photon counting regime" [30,31], implying, in any case, that the ratio of the number of photons divided by the number of pixels must be ≤0.15.…”

Section: Methodsmentioning

confidence: 99%

Hard X-ray Generation from ZnO Nanowire Targets in a Non-Relativistic Regime of Laser-Solid Interactions

et al. 2018

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We present a detailed investigation of X-ray emission from both flat and nanowire zinc oxide targets irradiated by 60 fs 5 × 1016 W/cm2 intensity laser pulses at a 0.8 µm wavelength. It is shown that the fluence of the emitted hard X-ray radiation in the spectral range 150–800 keV is enhanced by at least one order of magnitude for nanowire targets compared to the emission from a flat surface, whereas the characteristic Kα line emission (8.64 keV) is insensitive to the target morphology. Furthermore, we provide evidence for a dramatic increase of the fast electron flux from the front side of the nanostructured targets. We suggest that targets with nanowire morphology may advance development of compact ultrafast X-ray sources with an enhanced flux of hard X-ray emission that could find wide applications in highenergy density (HED) physics.

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Section: Methodsmentioning

confidence: 99%

Hard X-ray Generation from ZnO Nanowire Targets in a Non-Relativistic Regime of Laser-Solid Interactions

et al. 2018

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“…In the first experiments, the high-pressure gas jet targets will be used. The problems with overlapping X-ray emission from field perturbed and non-perturbed plasma will be solved benefiting from polarization properties of otherwise forbidden transitions that become partially allowed in strong field affected plasmas [176]. Alternatively, our experience with identification of electric field affected profiles of spectral lines emitted from independently produced plasmas submitted to external (laser) fields [173] will be used.…”

Section: High-field Diagnostics With X-ray Spectroscopymentioning

confidence: 99%

P3: An installation for high-energy density plasma physics and ultra-high intensity laser–matter interaction at ELI-Beamlines

Weber

Bechet

Borneis

et al. 2017

Matter and Radiation at Extremes

137

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ELI-Beamlines (ELI-BL), one of the three pillars of the Extreme Light Infrastructure endeavour, will be in a unique position to perform research in high-energy-density-physics (HEDP), plasma physics and ultra-high intensity (UHI) (1022W/cm2) laser–plasma interaction. Recently the need for HED laboratory physics was identified and the P3 (plasma physics platform) installation under construction in ELI-BL will be an answer. The ELI-BL 10 PW laser makes possible fundamental research topics from high-field physics to new extreme states of matter such as radiation-dominated ones, high-pressure quantum ones, warm dense matter (WDM) and ultra-relativistic plasmas. HEDP is of fundamental importance for research in the field of laboratory astrophysics and inertial confinement fusion (ICF). Reaching such extreme states of matter now and in the future will depend on the use of plasma optics for amplifying and focusing laser pulses. This article will present the relevant technological infrastructure being built in ELI-BL for HEDP and UHI, and gives a brief overview of some research under way in the field of UHI, laboratory astrophysics, ICF, WDM, and plasma optics.

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“…In conventional flat crystal spectrometer configurations, a compromise is typical between energy coverage and the working distance to the source. The combination of a cylindrically bent crystal in von Hámosgeometry 14 and a CCD camera with single photon‐counting capability incurs a high dynamic range for the instrument and allows the achievement of background‐free spectra 15 …”

Section: Introductionmentioning

confidence: 99%

Band tunable X‐ray flat crystal spectrometer for laser‐produced plasma spectroscopy measurements

Wang

Guo

et al. 2021

X-Ray Spectrometry

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An updated design of a band‐tunable flat crystal spectrometer is presented. The new configuration contributes to a broad spectral coverage with greater resolving power, a strong rejection of hard X‐ray backgrounds, and decreased sensitivity to source broadening for an extended source. To verify the performance of the spectrometer, spectral lines were measured using a potassium acid phthalate crystal for highly ionized species of aluminum or silicon, and the results were compared by measuring H‐ and He‐like Al and Si lines by rotating the crystal to selected Bragg angles, at the Shenguang II laser facility. The observed energy‐coverage range is consistent with the theoretical predictions, as well as with the measured spectral resolution of ~300.

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K-shell spectroscopy of silicon ions as diagnostic for high electric fields

Cited by 3 publications

References 29 publications

Hard X-ray Generation from ZnO Nanowire Targets in a Non-Relativistic Regime of Laser-Solid Interactions

Hard X-ray Generation from ZnO Nanowire Targets in a Non-Relativistic Regime of Laser-Solid Interactions

P3: An installation for high-energy density plasma physics and ultra-high intensity laser–matter interaction at ELI-Beamlines

Band tunable X‐ray flat crystal spectrometer for laser‐produced plasma spectroscopy measurements

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