Browsing by Subject "Photons"
Now showing items 1-8 of 8
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A neural network-based method for spectral distortion correction in photon counting x-ray CT.
(Physics in medicine and biology, 2016-08)Spectral CT using a photon counting x-ray detector (PCXD) shows great potential for measuring material composition based on energy dependent x-ray attenuation. Spectral CT is especially suited for imaging with K-edge contrast ... -
Advances in micro-CT imaging of small animals.
(Physica medica : PM : an international journal devoted to the applications of physics to medicine and biology : official journal of the Italian Association of Biomedical Physics (AIFB), 2021-08)<h4>Purpose</h4>Micron-scale computed tomography (micro-CT) imaging is a ubiquitous, cost-effective, and non-invasive three-dimensional imaging modality. We review recent developments and applications of micro-CT for preclinical ... -
Complex k band diagrams of 3D metamaterial/photonic crystals.
(Opt Express, 2011-09-26)A finite element method (FEM) for solving a complex valued k(ω) vs. ω dispersion curve of a 3D metamaterial/photonic crystal system is presented. This 3D method is a generalization of a previously reported 2D eigenvalue ... -
Diode-based transmission detector for IMRT delivery monitoring: a validation study.
(Journal of applied clinical medical physics, 2016-09-08)The purpose of this work was to evaluate the potential of a new transmission detector for real-time quality assurance of dynamic-MLC-based radiotherapy. The accuracy of detecting dose variation and static/dynamic MLC position ... -
Dual source hybrid spectral micro-CT using an energy-integrating and a photon-counting detector.
(Physics in medicine and biology, 2020-10-21)Preclinical micro-CT provides a hotbed in which to develop new imaging technologies, including spectral CT using photon counting detector (PCD) technology. Spectral imaging using PCDs promises to expand x-ray CT as a functional ... -
Hybrid spectral CT reconstruction.
(PLoS One, 2017)Current photon counting x-ray detector (PCD) technology faces limitations associated with spectral fidelity and photon starvation. One strategy for addressing these limitations is to supplement PCD data with high-resolution, ... -
Photon-counting cine-cardiac CT in the mouse.
(PloS one, 2019-01)The maturation of photon-counting detector (PCD) technology promises to enhance routine CT imaging applications with high-fidelity spectral information. In this paper, we demonstrate the power of this synergy and ... -
Using weighted power mean for equivalent square estimation.
(Journal of applied clinical medical physics, 2017-11)Equivalent Square (ES) enables the calculation of many radiation quantities for rectangular treatment fields, based only on measurements from square fields. While it is widely applied in radiotherapy, its accuracy, especially ...
