Sub-10-ms X-ray tomography using a grating interferometer

Yashiro, Wataru; Noda, Daiji; Kajiwara, Kentaro

doi:10.7567/apex.10.052501

Cited by 36 publications

(34 citation statements)

References 38 publications

(42 reference statements)

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“…In such a case, a polychromatic X-ray beam called a white or pink beam can be beneficial for high-resolution imaging. A synchrotron radiation-based polychromatic beam can also be used for highspeed measurement (Lame et al, 2003;Di Michiel et al, 2005;Mokso et al, 2011;Shuai et al, 2016;Yashiro et al, 2017;Vegso et al, 2019). In particular, the plentiful flux in the polychromatic beam becomes more important in the high-energy region where the X-ray flux in synchrotron radiation rapidly decreases.…”

Section: High-energy X-ray Microtomography Using a White Beammentioning

confidence: 99%

Development of an X-ray imaging detector for high-energy X-ray microtomography

Hoshino

Uesugi

Yagi

2020

J Synchrotron Radiat

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A dedicated X-ray imaging detector for 200 keV high-energy X-ray microtomography was developed. The novelty of the detector is a large-format camera lens employed for a wide field of view. Several scintillators were evaluated in terms of the degree of efficiency of detection for high-energy X-ray photons and the modulation transfer function. For tomographic measurement, a high-definition CMOS camera was incorporated in the detector to achieve a high spatial resolution while keeping the field of view wide. Rocks with fossil inclusions were imaged to demonstrate the applicability of the detector to high-energy X-ray microtomography.

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Section: High-energy X-ray Microtomography Using a White Beammentioning

confidence: 99%

Development of an X-ray imaging detector for high-energy X-ray microtomography

Hoshino

Uesugi

Yagi

2020

J Synchrotron Radiat

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“…In previous studies, millisecond-order X-ray phase tomography for a rotating sample was successfully realized using X-ray phase-contrast imaging techniques (Yashiro et al, 2017a(Yashiro et al, ,b, 2018aGarcía-Moreno et al, 2019). The use of a fringe-scanning method (Bruning et al, 1974;Schreiber & Bruning, 2007;Hack & Burke, 2011) enabled spatial and temporal resolutions of 20 mm and 4.43 ms to be achieved, respectively, using a bending-magnet beamline at SPring-8, Japan (Yashiro et al, 2018b).…”

Section: Introductionmentioning

confidence: 99%

High-speed rotating device for X-ray tomography with 10 ms temporal resolution

Mashita

Yashiro

Kaneko³

et al. 2021

J Synchrotron Radiat

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The temporal resolution of X-ray tomography, using a synchrotron radiation X-ray source, has been improved to millisecond order in recent years. However, the sample must be rotated at a speed of more than a few thousand revolutions per minute, which makes it difficult to control the environment around the sample. In this study, a high-speed rotation device has been developed, comprising two synchronized coaxial motors movable along the direction of the axis, which can stretch or compress the rotating sample. Using this device, tomograms of breaking rubber were successfully obtained at a temporal resolution of 10 ms.

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“…Moreover, white or pink beam can be used for fast phase tomography because it offers a flux over one magnitude higher than monochromatic beam would do 28 . Recently, new-generation high-speed cameras (a few hundred Hz up to thousands of Hz) and rotation stages have been employed for super-fast X-ray phase radiography and tomography 26,29,30 . By synchronizing a multi-axis motion stage with a camera and with a Zebra box, the speed of a fly-scan can be dramatically improved by moving both modulator and sample simultaneously and continuously.…”

Section: Introductionmentioning

confidence: 99%

High-energy, high-resolution, fly-scan X-ray phase tomography

Wang

Atwood

Pankhurst

et al. 2019

Sci Rep

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High energy X-ray phase contrast tomography is tremendously beneficial to the study of thick and dense materials with poor attenuation contrast. Recently, the X-ray speckle-based imaging technique has attracted widespread interest because multimodal contrast images can now be retrieved simultaneously using an inexpensive wavefront modulator and a less stringent experimental setup. However, it is time-consuming to perform high resolution phase tomography with the conventional step-scan mode because the accumulated time overhead severely limits the speed of data acquisition for each projection. Although phase information can be extracted from a single speckle image, the spatial resolution is deteriorated due to the use of a large correlation window to track the speckle displacement. Here we report a fast data acquisition strategy utilising a fly-scan mode for near field X-ray speckle-based phase tomography. Compared to the existing step-scan scheme, the data acquisition time can be significantly reduced by more than one order of magnitude without compromising spatial resolution. Furthermore, we have extended the proposed speckle-based fly-scan phase tomography into the previously challenging high X-ray energy region (120 keV). This development opens up opportunities for a wide range of applications where exposure time and radiation dose are critical.

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Sub-10-ms X-ray tomography using a grating interferometer

Cited by 36 publications

References 38 publications

Development of an X-ray imaging detector for high-energy X-ray microtomography

Development of an X-ray imaging detector for high-energy X-ray microtomography

High-speed rotating device for X-ray tomography with 10 ms temporal resolution

High-energy, high-resolution, fly-scan X-ray phase tomography

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