Space-Resolved Spectrum Diagnose by Soft X-Ray Transmission Grating Spectrometer

Shang, Wanli; Zhao, Yang; Xiong, Gang; Yang, Jiamin; Zhu, T

doi:10.1088/1009-0630/13/1/08

Cited by 6 publications

(3 citation statements)

References 14 publications

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“…The full spectrum with no filter is used during this experiment. TGS gives 1D spacial and 1D spectral images with a spectral resolution of 0.1 nm over the wavelength range of 0.25-25 nm [18]. The relative uncertainty of the x-ray spectrum by TGS is lower than 12% [19].…”

Section: Methodsmentioning

confidence: 99%

Demonstration of enhancement of x-ray flux with foam gold compared to solid gold

et al. 2016

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Experiments have been conducted to compare the re-emission from foam gold with a 0.3 g cc−1 density and solid gold in a SGIII prototype laser facility. Measurements of the re-emission x-ray flux demonstrate that emission is enhanced by the low density foam gold compared to the solid gold under the same conditions. The emission fraction increases with time and is concentrated on soft x-ray flux between 0.1–1 keV. The simulation results with Multi 1D agree with the experimental results. There are potential advantages to using foam walls for improving the emission and soft x-ray flux in hohlraums.

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Section: Methodsmentioning

confidence: 99%

Demonstration of enhancement of x-ray flux with foam gold compared to solid gold

et al. 2016

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“…1(a). The time-integrated x-ray emission spectrum from the plasma was recorded at 46.6 with respect to the target normal using a transmission grating spectrometer (TGS) 24 with a spectral resolution of 0.1 nm over the wavelength range of 0.25-25 nm. The relative uncertainty of x-ray spectrum by TGS is lower than 12%.…”

Section: Methodsmentioning

confidence: 99%

Enhanced x-ray emissions from Au-Gd mixture targets ablated by a high-power nanosecond laser

Dong

Shang

Yang

et al. 2014

Journal of Applied Physics

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As an important x-ray source, enhancement of x-ray emissions from laser-produced plasmas is imperative for various applications. High-Z Au-Gd mixture targets are proposed to enhance the laser to x-ray conversion efficiency compared to pure Au target. In the experiments, a 1 ns frequency-tripled (351 nm wavelength) laser light was used to obtain an intensity of 3×1014 W/cm2 on the targets. The x-ray spectra, total absolute x-ray emissions of all space, M-band fraction and backscattering from pure Au and Au-Gd mixture have been measured, respectively. It is shown that the absolute laser to x-ray conversion efficiency for the Au-Gd mixture containing 60% gold by atom is 47.7%, which has a 15% enhancement compared with that of the pure Au target. The experimental results are consistent with the radiation hydrodynamic simulations.

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“…The relative uncertainty of the M-band x-ray flux measured by M-XRD is lower than 5%. A transmission grating spectrometer (TGS) was installed at θ = 20 • to measure the timeintegral transmitted x-ray spectrum from 0.2-4.8 keV [28]. The relative uncertainty of the x-ray spectrum measured by TGS is lower than 12%.…”

Section: Experimental Arrangement and Resultsmentioning

confidence: 99%

Optimization of tungsten-doped high density carbon target in inertial confinement fusion

Li¹,

Zhang²,

Jing³

et al. 2021

Nucl. Fusion

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A tungsten (W)-doped high density carbon (HDC) target is a promising design for an ignition target in inertial confinement fusion (ICF). The influence of silicon (Si) and W on the transmission of M-band x-ray has been studied by experiment. With a radiation temperature of ∼200 eV, the transmitted M-band x-ray (1.6–4.4 keV) flux and spectrum of Si or W-buried HDC sample were measured by M-XRDs and TGS, respectively. The thin layer of Si or W was buried at two different depths (2.1 μm and 11 μm). Results show that M-band transmission flux of Si-buried HDC sample decreases with buried depth (bd). However, bd does not influence that of the W-buried HDC sample. The one-dimensional simulation result is consistent with the experimental result. In the 1D simulation, the Au M-band (2–5 keV) transmission flux of Si-buried HDC also decreases with bd. However, the Au M-band transmission flux of W-buried HDC increases at first and then decreases. This is mainly due to the different characteristics of Si and W opacity. Especially as the peak radiation temperature reaches 260 eV, W can still absorb the M-band x-ray efficiently as it is buried near the radiation source. Based on these studies, an optimized W-doped HDC target with low doped fraction and mass has been proposed in this paper.

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Space-Resolved Spectrum Diagnose by Soft X-Ray Transmission Grating Spectrometer

Cited by 6 publications

References 14 publications

Demonstration of enhancement of x-ray flux with foam gold compared to solid gold

Demonstration of enhancement of x-ray flux with foam gold compared to solid gold

Enhanced x-ray emissions from Au-Gd mixture targets ablated by a high-power nanosecond laser

Optimization of tungsten-doped high density carbon target in inertial confinement fusion

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