Methodology development and application of X-ray imaging beamline at SSRF

Xie, Honglan; Deng, Bangming; Du, Guohao; Fu, Yanan; Guo, Han; Xue, Ye; Peng, Gang; Fang, Tao; Zhang, Ling; Xiao, Tiqiao

doi:10.1007/s41365-020-00805-7

Cited by 32 publications

(10 citation statements)

References 41 publications

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“…A typical sample, especially a tangled strand of tungsten fiber, was chosen to test the feasibility of SAXGI for a binary object. The SAXGI experiments were carried out at beamlines of BL09B and BL13W at SSRF, a 3.5 GeV third-generation synchrotron radiation facility [44] . The pseudo-thermal X-ray source was generated by scannable sandpaper scattered with irregular alumina particles, illuminated by a monochromatic X-ray beam at an energy of 15 keV.…”

Section: Methodsmentioning

confidence: 99%

Megapixel X-ray ghost imaging with a binned detector in the object arm

Zhang

Wang

et al. 2022

中国光学快报

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At present, reconstruction of megapixel and high-fidelity images with few measurements is a major challenge for X-ray ghost imaging (XGI). The available strategies require massive measurements and reconstruct low-fidelity images of less than 300 × 300 pixels. Inspired by the concept of synthetic aperture radar, synthetic aperture XGI (SAXGI) integrated with compressive sensing is proposed to solve this problem with a binned detector in the object arm. Experimental results demonstrated that SAXGI can accurately reconstruct the 1200 × 1200 pixels image of a binary sample of tangled strands of tungsten fiber from 660 measurements. Accordingly, SAXGI is a promising solution for the practical application of XGI.

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Section: Methodsmentioning

confidence: 99%

Megapixel X-ray ghost imaging with a binned detector in the object arm

Zhang

Wang

et al. 2022

中国光学快报

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“…Time-resolved measurements were performed in multibunch mode. The operation modes of electron beam injection from a linear accelerator to the storage ring at the SSRF are single-bunch mode and multi-bunch mode [36][37][38]. For single-bunch mode, only one electron beam runs in the storage ring, and the injected electron beam must be filled in the same high-frequency bucket.…”

Section: Methodsmentioning

confidence: 99%

Picosecond time-resolved X-ray ferromagnetic resonance measurements at Shanghai synchrotron radiation facility

Xia

Cao

et al. 2022

NUCL SCI TECH

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An experimental picosecond time-resolved X-ray ferromagnetic resonance (TR-XFMR) apparatus with a time resolution of 13 ps (RMS) or 31 ps (FWHM) was constructed and demonstrated in the 07U and 08U1A soft X-ray beamlines at the Shanghai Synchrotron Radiation Facility (SSRF) using pump-probe detection and X-ray magnetic circular dichroism (XMCD) spectroscopy. Element and time-resolved ferromagnetic resonance was excited by continuous microwave phase-locking of the bunch clock within the photon beam during synchrotron radiation and was characterized by detecting the magnetic circular dichroism signals of the elements of interest in the magnetic films. Using this equipment, we measured the amplitude of the element-specific moment precession during ferromagnetic resonance (FMR) at 2 GHz in a single Ni81Fe19 layer.

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“…The beamline BL13W1 with 8.0 keV-72.5 keV and several sets of x-ray imaging detectors with varying pixel sizes (0.19 μm-24 μm) were used to realize x-ray micro-CT in-line imaging (Wang et al 2020). In this experiment, the photon energy and pixel size were set as 15 keV and 3.25 μm, respectively (Shang et al 2020, Xie et al 2020. A ladybird specimen, placed in a plastic tube, was mounted on the beamline positioner.…”

Section: Micro-ctmentioning

confidence: 99%

Elytra coupling of the ladybird Coccinella septempunctata functions as an energy absorber in intentional falls

Zhang¹,

Yuan²,

Jiang³

et al. 2021

Bioinspir. Biomim.

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Some insects, such as bees, wasps, and bugs, have specialized coupling structures to synchronize the wing motions in flight. Some others, such as ladybirds, are equipped with coupling structures that work only at rest. By locking elytra into each other, such structures provide hindwings with a protective cover to prevent contamination. Here, we show that the coupling may play another significant role: contributing to energy absorption in falls, thereby protecting the abdomen against mechanical damage. In this combined experimental, numerical and theoretical study, we investigated free falls of ladybirds (Coccinella septempunctata), and discovered that upon collision to the ground, the coupling may fail and the elytra may unlock. This unlocking of the coupling increased the energy absorption by 33%, in comparison to when the elytra remain coupled. Using micro-computed tomography scanning, we developed comparative models that enabled us to simulate impact scenarios numerically. Our results showed that unlocking of the coupling, here called elytra splitting, reduces both the peak impact force and rebound velocity. We fabricated the insect-inspired coupling mechanism using 3D printing and demonstrated its application as a damage preventing on system for quadcopters in accidental collisions.

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Methodology development and application of X-ray imaging beamline at SSRF

Cited by 32 publications

References 41 publications

Megapixel X-ray ghost imaging with a binned detector in the object arm

Megapixel X-ray ghost imaging with a binned detector in the object arm

Picosecond time-resolved X-ray ferromagnetic resonance measurements at Shanghai synchrotron radiation facility

Elytra coupling of the ladybird Coccinella septempunctata functions as an energy absorber in intentional falls

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