Photon-counting computed tomography (PCCT) is a form of X-ray computed tomography (CT) in which X-rays are detected using a photon-counting detector (PCD)...
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Photon counting is a technique in which individual photons are counted using a single-photon detector (SPD). A single-photon detector emits a pulse of...
13 KB (1,415 words) - 05:59, 15 September 2024
CT scan (redirect from Computed Tomography)
A computed tomography scan (CT scan), formerly called computed axial tomography scan (CAT scan), is a medical imaging technique used to obtain detailed...
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Single-photon may refer to: Photon counting devices capable of counting individual photons, for example: Superconducting nanowire single-photon detectors...
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The history of X-ray computed tomography (CT) traces back to Wilhelm Conrad Röntgen's discovery of X-ray radiation in 1895 and its rapid adoption in medical...
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techniques, much like the reconstruction of computed tomography (CT) and single-photon emission computed tomography (SPECT) data, are commonly used, although...
74 KB (8,832 words) - 20:45, 8 August 2025
(MBI) is a medical imaging company focusing on spectral photon counting computed tomography for quantitative color imaging. The company was founded in...
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Quantum tomography or quantum state tomography is the process by which a quantum state is reconstructed using measurements on an ensemble of identical...
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X-ray (redirect from HX photons)
are paid a separate fee for each X-ray providing more X-rays. Early photon tomography or EPT (as of 2015) along with other techniques are being researched...
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Spectral imaging (radiography) (category X-ray computed tomography)
acceptable pileup levels at CT count rates begin to come within reach. Photon-counting mammography Photon-counting computed tomography Fredenberg, E. (2018)....
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Tomosynthesis (category X-ray computed tomography)
of projections. Though this idea was displaced by the advent of computed tomography, tomosynthesis later gained interest as a low-dose tomographic alternative...
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of plain radiographs with single- and dual-photon absorptiometry and with quantitative computed tomography". Arthritis & Rheumatism. 35 (9): 1062–1067...
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Medical imaging (section Tomography)
company EMI invented the X-ray computed tomography device for head diagnosis, which is commonly referred to as computed tomography (CT). The CT nucleus method...
70 KB (8,309 words) - 20:41, 8 August 2025
spectroscopy Geiger counter Liquid scintillation counting Lucas cell Pandemonium effect Photon counting Scintigraphy Total absorption spectroscopy Wikimedia...
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Quantum teleportation (category Quantum computing)
(BSM) on photon b, the input photon, and photon c, her part of the entangled photon pair (photons c and d). Photon d, Bob's receiver photon, will contain...
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Ionizing radiation (section Photon radiation)
particles or electromagnetic waves that have enough energy per individual photon or particle to ionize atoms or molecules by detaching electrons from them...
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a superconducting nanowire single-photon detector is the fastest single-photon detector (SPD) for photon counting. It is a key enabling technology for...
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Geiger counter (category Counting instruments)
plateau, the correct operating voltage range for a Geiger–Müller tube Photon counting Radioactive decay, the process by which unstable atoms emit radiation...
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growing. Computed tomography (CT) technologies include X-ray CT, positron emission tomography (PET) and single-photon emission computed tomography (SPECT)...
21 KB (2,419 words) - 16:01, 17 July 2025
and nuclear medicine, including single-photon emission computed tomography (SPECT), positron emission tomography (PET) and scintigraphy. The urea breath...
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instrument a viable imaging choice. They are often used in tomography (see micro-computed tomography) to produce three dimensional images of objects, including...
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Phase-contrast X-ray imaging (redirect from X-ray Phase Contrast Tomography)
its images. Standard X-ray imaging techniques like radiography or computed tomography (CT) rely on a decrease of the X-ray beam's intensity (attenuation)...
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state consistent with those measurement results is computed. It is named by analogy with tomography, the reconstruction of three-dimensional images from...
67 KB (8,316 words) - 08:05, 12 July 2025
Proportional counter (category Counting instruments)
proportional operation. If avalanches start to self-multiply due to UV photons as they do in a Geiger–Muller tube, then the counter enters a region of...
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roentgen had had the attraction of being relatively simple to define for photons in air, but the gray is independent of the primary ionizing radiation type...
23 KB (2,887 words) - 11:23, 8 July 2025
This is used in some forms of tomography: single-photon emission computed tomography and positron emission tomography (PET) scanning and Cherenkov luminescence...
28 KB (2,579 words) - 14:28, 5 August 2025
derived from basic metric value I.e., indirectly ionizing radiation such as photons and neutrons Originally known as the International X-ray Unit Committee...
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performance in cone beam computed tomography (CBCT). Mathematical models of spectral and phase-contrast imaging performance for photon counting x-ray detectors...
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biological samples. Coupled with the technique of time-correlated single photon counting (TCSPC), the use of single-pixel imaging for compressive fluorescence...
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2D and 3D images in certain imaging techniques. For example, in computed tomography an image must be reconstructed from projections of an object. Here...
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