X-ray tube comprising:a cathode and an anode electrically isolated from each other, wherein the cathode is configured to emit electrons in an electron beam to a target at the anode, wherein the target is configured to emit X-rays in response to the impact of electrons from the cathode; ...
The continuous spectrum and the peaks of X-rays are produced from two processes: When fast-moving electrons emitted from the cathode are suddenly decelerated inside the target anode – these rays are called bremsstrahlung radiation, or “braking radiation”. When electrons in the target atoms get ...
Get the latest news and updates on x-rays from Tech Xplore. Stay ahead with updates on innovations, research, and breakthroughs.
Chest X-ray (CXR) images have been one of the important diagnosis tools used in the COVID-19 disease diagnosis. Deep learning (DL)-based methods have been used heavily to analyze these images. Compared to other DL-based methods, the bag of deep visual words-based method (BoDVW) proposed...
X-rays: burstsRecent studies have shown that runaway thermonuclear burning of material accreted onto neutron stars, i.e. Type I X-ray bursts, may affect the accretion disk. We investigate this by performing a detailed time-resolved spectral analysis of the superburst from 4U 1636-536 observed...
Using monochromated x rays to excite photoemission spectra, surface charge buildup can occur on insulating surfaces causing the spectra to shift relative to the spectra of electrically conductive surfaces. In the case of silicon dioxide on Si, the oxide surface can charge up to a significant ...
An x-ray assembly is provided comprising a target shaft and an x-ray target element mounted to the target shaft. A circumferential feature is formed in the x-ray target element. At least one weight element is adapted to be securable in a plurality of positions within the circumferential featu...
X-rays: galaxiesObservations show that the accretion flows in low-luminosity active galactic nuclei probably have a two-component structure with an inner, hot, optically thin, advection-dominated accretion flow (ADAF) and an outer, truncated, cool, optically thick accretion disk. As shown by ...
emitted by lightning strokes. Their main conclusion: As the lightning comes down from the cloud toward the ground in 30- to 160-foot stages known as “steps” in a “step leader” process, the X-rays shoot out just below each step, mere millionths of a second after the step completes....
Fig. 2. Panoramic X-rays and computed tomography show gradual expansion of the lesion in the retromolar to ascending ramus region. (A) In 2002, a multilocular radiolucent area has expanded in the left ascending ramus, with root resorption. (B) In 2004 (left image) and 2005 (middle and...