Results 211 to 220 of about 8,586 (257)
Some of the next articles are maybe not open access.
Musculoskeletal imaging with a prototype photon-counting detector
European Radiology, 2011To test a digital imaging X-ray device based on the direct capture of X-ray photons with pixel detectors, which are coupled with photon-counting readout electronics.The chip consists of a matrix of 256 × 256 pixels with a pixel pitch of 55 μm. A monolithic image of 11.2 cm × 7 cm was obtained by the consecutive displacement approach. Images of embalmed
M, Gruber +5 more
openaire +2 more sources
Photon counting detectors for Fabry-Perot interferometers
Applied Optics, 1989Sealed channel plate photomultipliers with multiple discrete anodes for use as photon counting detectors in the image plane of Fabry-Perot interferometers are described. The influence of design and construction on performance of completed devices is discussed. Effects on spatial resolution, lifetime, and counting efficiency are described.
E H, Darlington, J R, Haviland
openaire +2 more sources
Photon-counting radiography with the gas microstrip detector
Physics in Medicine and Biology, 1999We have built a proof of-concept photon-counting x-ray imaging system using a Xe:CH4 gas microstrip detector (GMD) as the image receptor, and have used this system to demonstrate several advantages of photon counting over energy integration. Our experiments spanned x-ray spectra from 10 to 50 kVp and Xe:CH4 pressures from 1 to 4 atm.
D G, Gobbi +3 more
openaire +2 more sources
Imaging thermal objects with photon-counting detectors
Applied Optics, 1992A photon-counting camera is used to generate images of thermal (blackbody) objects. Analytical estimates of the count rates that can be obtained for thermal objects in the 300-800-K temperature range are given for several different photocathode materials.
E A, Watson, G M, Morris
openaire +2 more sources
Image Photon Counting Detectors
Topical Meeting on Quantum-Limited Imaging and Image Processing, 1986A comparison of four available detectors, the Boksenberg, the MAMA, the PAPA, and the resistive anode, point out the individual strengths and weakness.
openaire +1 more source
Photon-Counting Detector Systems
1988Photon-counting detector systems for use with instrumentation on ground-based telescopes are currently in a stage of rapid development, primarily because of the need for high-sensitivity detectors for use in space astrophysics instruments and for civilian and military night-vision applications.
openaire +1 more source
Neuro applications of photon-counting detector CT
British Journal of RadiologyAbstract Photon-counting detector CT, a recent advance in CT technology, has several advantages over conventional energy-integrating detector CT. These include increased spatial resolution, reduced image noise, increased soft-tissue and iodine contrast, lower radiation dose, and inherent spectral imaging.
Akio Hiwatashi +5 more
openaire +2 more sources
PHOTON COUNTING DETECTOR AND PHOTON COUNTING METHOD
2023SOLF TORSTEN JÖRN +2 more
openaire +7 more sources