Flat Crystal x-ray Spectrometer for Quantitative Spectral Measurement in the 2–5 keV Region

Zhao, Yang; Wei, Minxi; Deng, Bo; Zhu, T; Hu, Zhimin; Xiong, Gang; Shang, Wanli; Kuang, Longyu; Gao, Yang; Zhang, Jiyan; Yang, Jiamin

doi:10.1088/0256-307x/28/6/060701

Cited by 4 publications

(2 citation statements)

References 18 publications

(3 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We also measure the X-ray signal with our HOPG spectrometer for comparison. Since the diffraction efficiency of HOPG crystal is higher than that of PET crystal [14,15] , it is necessary to reduce laser energy and intensity to protect the CCD. The laser intensity is set as 10 14 W/cm 2 , and the total delivery energy is 80 J within duration of 1 ns.…”

Section: The Experimental Results and Discussionmentioning

confidence: 99%

A High-Efficiency X-Ray Crystal Spectrometer for X-Ray Thomson Scattering

Xiaoding¹,

Zhang²,

Gao³

et al. 2013

Plasma Sci. Technol.

View full text Add to dashboard Cite

Highly oriented pyrolitic graphite (HOPG) has high X-ray diffraction efficiency due to its unique mosaic crystal structure, and thus is very suitable for its application to X-ray Thomson scattering measurement of solid-density plasmas. In this article, by using the K-shell X-ray source from laser-produced Ti plasma, the properties of the HOPG spectrometer are characterized and compared with those of the flat Pentaerythritol (PET) spectrometer. The results show that the diffraction efficiency of the HOPG spectrometer under focusing condition is an order higher than that of the PET spectrometer, while the spectral resolution of the HOPG is about 320, high enough to be used in the measurement of X-ray Thomson scattering spectra.

show abstract

Section: The Experimental Results and Discussionmentioning

confidence: 99%

A High-Efficiency X-Ray Crystal Spectrometer for X-Ray Thomson Scattering

Xiaoding¹,

Zhang²,

Gao³

et al. 2013

Plasma Sci. Technol.

View full text Add to dashboard Cite

show abstract

“…2 were obtained by using the technique of flat crystal x-ray spectrometry for quantitative spectral measurement. [8] The uncertainty of the intensity was below 8.5%. Between 2.60 and 2.64 Å, the He-like resonance (1𝑠2𝑝 1 𝑃 1 -1𝑠 2 1 𝑆 0 ), intercombination (1𝑠2𝑝 3 𝑃 1 -1𝑠 2 1 𝑆 0 ) lines and the Li-like satellites were clearly resolved.…”

mentioning

confidence: 91%

K-Shell Spectra from CH Foam Tamped Ti Layers Irradiated with Nanosecond Laser Pulses

Zhao¹,

Zhu²,

Wei³

et al. 2012

Chinese Phys. Lett.

Self Cite

View full text Add to dashboard Cite

Hot dense titanium plasma was produced by irradiating a CH foam coated titanium layer with nanosecond laser pulses. The time-integrated emission spectra of He-like titanium were measured by using an absolutely calibrated flat crystal spectrometer. The synthetic spectra obtained by the steady collisional-radiative (CR) equilibrium model associated with the hydrodynamic simulations were compared with the experimental spectra. The results show that the electron density increases up to 5 × 1021 cm−3 with CH foam of density 40 mg/cc. This work indicates that an overlay of CH foam on a solid target is beneficial to create an optimum condition for K-shell emissions from a high density plasma region.

show abstract

A time-gated multi-channel x-ray crystal spectrometer on the Shenguang-III laser facility

Qing

Wei

Gao

et al. 2018

Review of Scientific Instruments

View full text Add to dashboard Cite

An eight-channel x-ray flat crystal spectrometer was developed for high energy density physics research at the Shenguang-III (SG-III) laser facility. The spectrometer uses trihydroxymethylaminomethane crystals (2 = 8.78 Å) to record Ti K-shell emission in the photon energy range of 4.65-5.05 keV. The spectrometer couples to an x-ray framing camera to achieve time-resolution. This has four microstrips, and each strip records two snapshots of the emission image. Based on the intersection positioning system with a dual-charge coupled device, the alignment system is easily operated and efficient. The instrument was tested and used for Au hohlraum plasma diagnosis experiments on SG-III. The He- line and its Li-like satellites and the Ly- line of a Ti tracer were detected, from which the spectral resolution of the instrument was analyzed. The spectral resolution /Δ at the Ti He- line ranges from about 500 to 880 and mainly limited by the x-ray source size.

show abstract

Flat Crystal x-ray Spectrometer for Quantitative Spectral Measurement in the 2–5 keV Region

Cited by 4 publications

References 18 publications

A High-Efficiency X-Ray Crystal Spectrometer for X-Ray Thomson Scattering

A High-Efficiency X-Ray Crystal Spectrometer for X-Ray Thomson Scattering

K-Shell Spectra from CH Foam Tamped Ti Layers Irradiated with Nanosecond Laser Pulses

A time-gated multi-channel x-ray crystal spectrometer on the Shenguang-III laser facility

Contact Info

Product

Resources

About