Results 21 to 30 of about 222,202 (214)

Optimization Method to Predict Optimal Noise Reduction Parameters for the Non-Local Means Algorithm Based on the Scintillator Thickness in Radiography

open access: yesSensors, 2023
The resulting image obtained from an X-ray imaging system depends significantly on the characteristics of the detector. In particular, when an X-ray image is acquired by thinning the detector, a relatively large amount of noise inevitably occurs.
Bo Kyung Cha   +3 more
doaj   +1 more source

In-Orbit Background for X-ray Detectors

open access: yes, 2022
In-orbit background is an unavoidable feature of all space-borne X-ray detectors, and arises both from cosmic sources (diffuse or point-like) and from the interaction of the detectors themselves with the space environment (primary or secondary cosmic rays, geomagnetically trapped particles, activation of spacecraft structures). In this chapter the main
openaire   +2 more sources

Double-sided fresnel zone plates as high performance optics in X-ray microscopy [PDF]

open access: yes, 2015
X-ray microscopy describes a range of analytical techniques, specialized for the characterization of organic and inorganic samples using high energy photons.
Mohácsi, István
core   +1 more source

Energy calibration and performance testing of LEGe detector

open access: yesThe Journal of Engineering, 2019
The low energy germanium detector (LEGe) is in all aspects optimised for performance at low and moderate energies. It has specific advantages over conventional planar or coaxial detectors.
Dongjie Hou   +4 more
doaj   +1 more source

Usefulness of an Additional Filter Created Using 3D Printing for Whole-Body X-ray Imaging with a Long-Length Detector

open access: yesSensors, 2022
We recently developed a long-length detector that combines three detectors and successfully acquires whole-body X-ray images. Although the developed detector system can efficiently acquire whole-body images in a short time, it may show problems with ...
Hyunsoo Seo   +5 more
doaj   +1 more source

High sensitivity organic inorganic hybrid X-ray detectors with direct transduction and broadband response

open access: yesNature Communications, 2018
X-ray detectors based on low-cost organic semiconductors have inherently low detector sensitivity due to poor X-ray to charge conversion and charge collection.
H. M. Thirimanne   +11 more
doaj   +1 more source

Double-Exposure Method with Synchrotron White X-ray for Stress Evaluation of Coarse-Grain Materials

open access: yesQuantum Beam Science, 2020
Stress measurements of coarse-grained material are difficult using synchrotron X-ray diffraction because the diffraction patterns of coarse-grained materials are spotty.
Kenji Suzuki   +4 more
doaj   +1 more source

Recent Advancements in CT Detectors: A Comprehensive Review [PDF]

open access: yesJournal of Clinical and Diagnostic Research
The Computed Tomography (CT) scanners are widely used in the diagnostic and therapeutic medical fields due to their quick scanning times, excellent spatial resolution and widespread availability.
Amal Shaji   +4 more
doaj   +1 more source

X-ray detector requirements for laser–plasma accelerators

open access: yesFrontiers in Physics, 2023
Laser–plasma interactions (LPIs) are an emerging source of a range of energetic radiation. LPI experiments drive ultra-short (< ps) and brilliant sources of X-rays from keV to MeV energies.
Chris D. Armstrong   +7 more
doaj   +1 more source

Filters for X-Ray Detectors on Space Missions

open access: yes, 2022
Thin filters and gas tight windows are used in Space to protect sensitive X-ray detectors from out-of-band electromagnetic radiation, low-energy particles, and molecular contamination. Though very thin and made of light materials, filters are not fully transparent to X-rays. For this reason, they ultimately define the detector quantum efficiency at low
Barbera, Marco   +2 more
openaire   +4 more sources

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