Results 181 to 190 of about 2,988,281 (363)
Development of a generic focal spot measurement method suitable for bore‐type linacs
Abstract Purpose In linear accelerators, deviations in the x‐ray focal spot position significantly affect the accuracy of radiation therapy. However, as the focal spot position in bore‐type linac systems such as the Radixact system, cannot be assessed using conventional methods, a new evaluation method is required.
Hidetoshi Shimizu+5 more
wiley +1 more source
A method for measuring spatial resolution based on clinical chest CT sequence images
Abstract Purpose This study aimed to develop and validate a method for characterizing the spatial resolution of clinical chest computed tomography (CT) sequence images. Methods An algorithm for characterizing spatial resolution based on clinical chest CT sequence images was developed in Matlab (2021b).
Ying Liu+3 more
wiley +1 more source
MEDICAL DEVICE DESIGN FOR LEG RECOVERY
This paper informs about medical devices design and their importance for people’s health. It analyses two leg recovery devices and a new option regarding to a personal device design.
BEREZA Gianina, MARIN Dumitru
doaj
Affine Geometries of Paths Possessing an Invariant Integral [PDF]
Luther Pfahler Eisenhart
openalex +1 more source
Abstract Purpose Due to the tight curvature in their design, ring applicators are usually associated with large positioning errors. The standard practice to correct for these deviations based on global offsets may not be sufficient to comply with the recommended tolerance.
Leon G. Aldrovandi+3 more
wiley +1 more source
Abstract Purpose This study evaluates the dosimetric and geometric precision of a virtual cone technique using CBCT‐based polymer gel dosimetry, enabling radiation delivery, and imaging readout within an identical spatial coordinate system. Methods We created a C# script for a virtual cone technique that generates a treatment plan with 10 gantry arcs ...
Tenzin Kunkyab+6 more
wiley +1 more source
Non-conjectural theory of relativity as a non-holonomic Laguerre geometry realized in the three-dimensionaltorsioned Cartesian space fibered with actions [PDF]
Tsurusaburo Takasu
openalex +1 more source
Abstract Introduction The use of radioactive materials in the United States has been tightly regulated by the Nuclear Regulatory Commission and other entities for many decades. In 2015, however, the Joint Commission began to require hospital‐based nuclear medicine departments to conduct shielding designs and evaluations for radioactive material areas ...
Michael Oumano+12 more
wiley +1 more source