Spectroscopic-grade X-ray imaging up to 100-kHz frame rate with controlled-drift detectors

Current trends for X-ray imaging detectors based on hybrid and monolithic detector technologies are reviewed. Hybrid detectors with photon-counting pixels have proven to be very powerful tools at synchrotrons. Recent developments continue to improve their performance, especially for higher spatial resolution at higher count rates with higher frame rates. Recent developments for X-ray free-electron laser (XFEL) experiments provide high-frame-rate integrating detectors with both high sensitivity and high peak signal. Similar performance improvements are sought in monolithic detectors. The monolithic approach also offers a lower noise floor, which is required for the detection of soft X-ray photons. The link between technology development and detector performance is described briefly in the context of potential future capabilities for X-ray imaging detectors.

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Detector Development Status and Outlook of the SACLA/SPring-8 Site

Acta Crystallographica Section A Foundations and Advances ◽

10.1107/s2053273314093139 ◽

2014 ◽

Vol 70 (a1) ◽

pp. C686-C686

Author(s):

Takaki Hatsui ◽

Shun Ono ◽

Togo Kudo ◽

Kazuo Kobayashi ◽

Takashi Kameshima ◽

...

Keyword(s):

Silicon On Insulator ◽

Frame Rate ◽

Sensor Technology ◽

X Rays ◽

Charge Coupled Device ◽

X Ray ◽

X Ray Imaging ◽

Imaging Detector ◽

Laser Facility ◽

Scientific Results

X-ray Free-Electron Laser facility, SACLA has been operational for more than 2 years. During the user runs, multi-port charge coupled device (MPCCD) detectors has been extensively used to deliver novel scientific results. In order to strengthen the facility capability, we are developing new variants of the MPCCD detectors[1]. Because some of the features such as high peak signal detection cannot be implemented by CCD technology, novel monolithic process based on silicon-on-insulator (SOI) sensor technology is under development. By employing the novel process, we are developing SOPHIAS sensor targeting the peak signal of 40000 photons at 7 keV within 100 micrometer square[2]. The SPring-8 site has proposed an upgrade of the storage ring to SPring-8 II. After the upgrades, we will obtain brighter x-rays, for example, 10^13 photons/second within a diameter of 100 nanometer. With this kind of bright X-ray sources, X-ray imaging detector with higher count rate, higher frame rate, and higher quantum efficiency up to 20-30 keV region is required. Detector development plan toward these targets are also discussed.

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High-resolution, high-frame-rate, flat-panel TFT array for digital x-ray imaging

10.1117/12.174247 ◽

1994 ◽

Cited By ~ 24

Author(s):

Larry E. Antonuk ◽

John M. Boudry ◽

Youcef El-Mohri ◽

Weidong Huang ◽

Jeffrey H. Siewerdsen ◽

...

Keyword(s):

High Resolution ◽

Frame Rate ◽

Flat Panel ◽

X Ray ◽

High Frame Rate ◽

X Ray Imaging

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The white beam station at imaging beamline BL-4, Indus-2

Journal of Synchrotron Radiation ◽

10.1107/s160057752100775x ◽

2021 ◽

Vol 28 (5) ◽

pp. 1639-1648

Author(s):

Ashish K. Agrawal ◽

Balwant Singh ◽

Payal Singhai ◽

Yogesh Kashyap ◽

Mayank Shukla

Keyword(s):

Signal To Noise Ratio ◽

Region Of Interest ◽

Frame Rate ◽

Personal Safety ◽

Destructive Testing ◽

Transient Phenomena ◽

X Ray ◽

White Beam ◽

X Ray Imaging ◽

Micro Tomography

The high flux density of synchrotron white beam offers several advantages in X-ray imaging such as higher resolution and signal-to-noise ratio in 3D/4D micro-tomography, higher frame rate in real-time imaging of transient phenomena, and higher penetration in thick and dense materials especially at higher energies. However, these advantages come with additional challenges to beamline optics, camera and sample due to increased heat load and radiation damage, and to personal safety due to higher radiation dose and ozone gas hazards. In this work, a white beam imaging facility at imaging beamline BL-4, Indus-2, has been developed, while taking care of various instrumental and personal safety challenges. The facility has been tested to achieve 1.5 µm spatial resolution, increased penetration depth up to 900 µm in steel, and high temporal resolutions of ∼10 ms (region of interest 2048 × 2048 pixels) and 70 µs (256 × 2048 pixels). The facility is being used successfully for X-ray imaging, non-destructive testing and dosimetry experiments.

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2D perovskite-based high spatial resolution X-ray detectors

Scientific Reports ◽

10.1038/s41598-021-02378-w ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

Amlan Datta ◽

John Fiala ◽

Shariar Motakef

Keyword(s):

Spatial Resolution ◽

High Spatial Resolution ◽

State Of The Art ◽

Frame Rate ◽

Modulation Transfer ◽

Large Area ◽

X Ray ◽

Current State ◽

X Ray Imaging ◽

Imaging Results

AbstractX-ray radiography is the most widely used imaging technique with applications encompassing medical and industrial imaging, homeland security, and materials research. Although a significant amount of research and development has gone into improving the spatial resolution of the current state-of-the-art indirect X-ray detectors, it is still limited by the detector thickness and microcolumnar structure quality. This paper demonstrates high spatial resolution X-ray imaging with solution-processable two-dimensional hybrid perovskite single-crystal scintillators grown inside microcapillary channels as small as 20 µm. These highly scalable non-hygroscopic detectors demonstrate excellent spatial resolution similar to the direct X-ray detectors. X-ray imaging results of a camera constructed using this scintillator show Modulation Transfer Function values significantly better than the current state-of-the-art X-ray detectors. These structured detectors open up a new era of low-cost large-area ultrahigh spatial resolution high frame rate X-ray imaging with numerous applications.

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