Real‐time, ray casting‐based scatter dose estimation for c‐arm x‐ray system
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Applied Clinical Medical Physics"
DOI: 10.1002/acm2.12036
Abstract: Objectives Dosimetric control of staff exposure during interventional procedures under fluoroscopy is of high relevance. In this paper, a novel ray casting approximation of radiation transport is presented and the potential and limitation vs. a… read more here.
Keywords: ray casting; source; monte carlo; carlo simulation ... See more keywords
Static MLC transmission simulation using two‐dimensional ray tracing
Sign Up to like & getrecommendations! Published in 2022 at "Journal of Applied Clinical Medical Physics"
DOI: 10.1002/acm2.13646
Abstract: Abstract Purpose We investigated the hypothesis that the transmission function of rounded end linearly traveling multileaf collimators (MLCs) is constant with position. This assumption is made by some MLC models used in clinical treatment planning… read more here.
Keywords: ray tracing; two dimensional; mlc; dimensional ray ... See more keywords
Understanding entrance‐air‐kerma as a quality‐control metric for dual‐energy x‐ray absorptiometry
Sign Up to like & getrecommendations! Published in 2022 at "Journal of Applied Clinical Medical Physics"
DOI: 10.1002/acm2.13779
Abstract: Abstract Purpose The low exposures, unique x‐ray beam geometry, and scanning design in dual‐energy x‐ray absorptiometry (DXA) make measurement and quality‐control strategies different from traditional x‐ray equipment. This study examines the dependence of measured entrance‐air‐kerma… read more here.
Keywords: quality control; ray; reported eak; vendor reported ... See more keywords
Factory quality assurance of passive radiotherapy intensity modulators for electrons using kilovoltage x-ray imaging.
Sign Up to like & getrecommendations! Published in 2023 at "Journal of applied clinical medical physics"
DOI: 10.1002/acm2.13943
Abstract: PURPOSE This work developed an x-ray-based method for performing factory quality assurance (QA) of Passive Radiotherapy Intensity Modulators for Electrons (PRIME) device fabrication. This method measures errors in position, diameter, and orientation of cylindrical island… read more here.
Keywords: intensity; island; factory quality; ray ... See more keywords
Heat Transport without Heating?—An Ultrafast X‐Ray Perspective into a Metal Heterostructure
Sign Up to like & getrecommendations! Published in 2020 at "Advanced Functional Materials"
DOI: 10.1002/adfm.202004555
Abstract: When the spatial dimensions of metallic heterostructures shrink below the mean free path of its conduction electrons, the transport of electrons and hence the transport of thermal energy by electrons continuously changes from diffusive to… read more here.
Keywords: transport without; heat transport; transport; without heating ... See more keywords
High‐Sensitivity Flexible X‐Ray Detectors based on Printed Perovskite Inks
Sign Up to like & getrecommendations! Published in 2021 at "Advanced Functional Materials"
DOI: 10.1002/adfm.202009072
Abstract: The demand for high‐energy radiation detection systems combining high sensitivity, low‐cost and large‐area fabrication has pushed the research on hybrid perovskites as promising materials for X‐ and γ‐photon detection, thanks to their high Z atoms,… read more here.
Keywords: ray detectors; based printed; sensitivity flexible; ray ... See more keywords
Centimeter‐Sized Single Crystals of Two‐Dimensional Hybrid Iodide Double Perovskite (4,4‐Difluoropiperidinium)4AgBiI8 for High‐Temperature Ferroelectricity and Efficient X‐Ray Detection
Sign Up to like & getrecommendations! Published in 2021 at "Advanced Functional Materials"
DOI: 10.1002/adfm.202009457
Abstract: Ferroelectricity and X‐ray detection property have been recently implemented for the first time in hybrid bromide double perovskites. It sheds a light on achieving photosensitive and ferroelectric multifunctional materials based on 2D lead‐free hybrid halide… read more here.
Keywords: double perovskites; ferroelectricity; ray; ray detection ... See more keywords
Soft X-Ray Stimulated Lanthanide@MOF Nanoprobe for Amplifying Deep Tissue Synergistic Photodynamic and Antitumor Immunotherapy.
Sign Up to like & getrecommendations! Published in 2021 at "Advanced healthcare materials"
DOI: 10.1002/adhm.202101174
Abstract: Combining photodynamic therapy (PDT) and immunotherapy has shown profound impact for synergistic treatment of malignant tumors. However, the shallow penetration depth of the traditional visible light activated PDT, immunosuppressive tumor microenvironment (TME), and poor immunogenicity… read more here.
Keywords: deep tissue; immunotherapy; ray; pdt ... See more keywords
Highly Luminescent Metal-Free Perovskite Single Crystal for Biocompatible X-Ray Detector to Attain Highest Sensitivity.
Sign Up to like & getrecommendations! Published in 2021 at "Advanced materials"
DOI: 10.1002/adma.202102190
Abstract: Solution-processed metal-based halide perovskites have taken a dominant position for perovskite optoelectronics including light emission and X-ray detection; however, the toxicity of the included heavy metals severely restricts their applications for wearable, lightweight, and transient… read more here.
Keywords: single crystal; free perovskite; metal; metal free ... See more keywords
Organic Semiconductor Single Crystals for X-ray Imaging.
Sign Up to like & getrecommendations! Published in 2021 at "Advanced materials"
DOI: 10.1002/adma.202104749
Abstract: Low-dose, high-resolution X-ray imaging is vital for medical diagnostics and material/device analyses. Current X-ray imagers are dominated by expensive inorganic materials via high-temperature solid processes (up to 1700 °C, e.g., CsI:Tl) with heavy metal elements.… read more here.
Keywords: semiconductor single; high sensitivity; single crystals; ray imaging ... See more keywords
Quasi‐2D Perovskite Crystalline Layers for Printable Direct Conversion X‐Ray Imaging
Sign Up to like & getrecommendations! Published in 2022 at "Advanced Materials"
DOI: 10.1002/adma.202106498
Abstract: Polycrystalline perovskite film‐based X‐ray detector is an appealing technology for assembling large scale imager by printing methods. However, thick crystalline layer without trap and solvent residual is challenging to fabricate. Here, the authors report a… read more here.
Keywords: ray; perovskite crystalline; ray imaging; crystalline layers ... See more keywords