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X-ray grating interferometry, as a powerful nondestructive imaging tool in fields like biology and medical tests, works well with conventional X-ray tubes, and provides three kinds of information, the attenuation image, the phase-contrast image and the dark field image, with higher contrast. However, the limited field of view of the sample due to the limited size of gratings and detector hinders the...
X-ray grating-based imaging is a powerful nondestructive tool in many fields. It works well with conventional X-ray tubes and multiple information, that is the attenuation image, the phase-contrast image and the dark-field image, can be obtained in a single scanning. Phase-stepping approach is the gold standard for information retrieval. One of the gratings moves relatively in the along the transverse...
Grating-based X-ray imaging can be classified into two categories: interferometric and non-interferometric. Interferometric setup, i.e. Talbot-Lau interferometer, has been intensively investigated in the recent past. To increase the angular sensitivity and maintain a reasonable system length, gratings with very small period are preferred, while the fabrication of such gratings remains challenging...
X-pinch plasma is produced with a high and pulsed current flowing through two or more fine wires that cross and touch at a single point, forming an “X”-shaped structure. A subnanosecond pulsed x-ray point source is usually formed at the crossing point of the wires. X-pinches have been used as x-ray sources for backlighting of high density plasmas such as wire-array Z-pinch plasma and for phase-contrast...
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