UHSS – a hybrid photon-counting detector with a 50 kfps sustained data rate

Ferrara, Joseph D.; Nakaye, Yasukazu; Sakuma, Yasutaka; Mikusu, S.; Sakumura, Takuto

doi:10.1107/s0108767319099252

Acta Cryst Sect A

2019

DOI: 10.1107/s0108767319099252

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UHSS – a hybrid photon-counting detector with a 50 kfps sustained data rate

Joseph D. Ferrara¹,

Yasukazu Nakaye²,

Yasutaka Sakuma³

et al.

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Evaluation of high intensity synchrotron radiation x-ray imaging using Si crystals with lapped surface at 33.3 keV

Kamezawa,

Hyodo

2023

Review of Scientific Instruments

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In x-ray imaging methods, such as synchrotron radiation microangiography, the x-ray intensity has become more important in recent years for real-time dynamic observations to evaluate temporal changes in samples. Many synchrotron radiation facilities use x-rays monochromated by diffraction from perfect Si crystals to improve the spatial resolution of x-ray images and obtain detailed information about a sample. In this paper, monochromatic synchrotron x-ray images were acquired using Si crystals lapped with abrasives to enhance the x-ray intensity using white synchrotron radiation x-rays for observing dynamic changes in samples. The x-ray intensity, spatial resolution, and contrast noise ratio (CNR) in the acquired x-ray images were quantitatively evaluated using a state-of-the-art high-spatial-resolution detector. The x-ray intensity was substantially increased by a factor of ∼8 when a lapped Si crystal was used. When the lapped Si crystal was used, the spatial resolution of x-ray images in the diffraction-plane direction was ∼70% lower than when an etched Si crystal was used at a spatial resolution of 10 lp/mm. By contrast, the CNR in x-ray images, which is important for observing the interior of a sample, increased threefold when a contrast agent containing iodine at a concentration of 38 wt. % was used. It was confirmed that the combination of white synchrotron radiation x-rays and a lapped crystal produces an intense monochromatic x-ray, providing an important evaluation for the use of optics for each research purpose.

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Evaluation of high intensity synchrotron radiation x-ray imaging using Si crystals with lapped surface at 33.3 keV

Kamezawa,

Hyodo

2023

Review of Scientific Instruments

View full text Add to dashboard Cite

show abstract

Microscopic ergodicity breaking governs the emergence and evolution of elasticity in glass-forming nanoclay suspensions

et al. 2020

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UHSS – a hybrid photon-counting detector with a 50 kfps sustained data rate

Cited by 2 publications

References 0 publications

Evaluation of high intensity synchrotron radiation x-ray imaging using Si crystals with lapped surface at 33.3 keV

Evaluation of high intensity synchrotron radiation x-ray imaging using Si crystals with lapped surface at 33.3 keV

Microscopic ergodicity breaking governs the emergence and evolution of elasticity in glass-forming nanoclay suspensions

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