Results 71 to 80 of about 1,953,706 (347)

The edge visualization metric: Quantifying the improvement of lung SBRT target definition with 4D CBCT

open access: yesJournal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose Four‐dimensional cone‐beam CT (4D CBCT) incorporates oversampling of 3D data to reconstruct multi‐phase CBCT data sets representing distinct phases of the breathing cycle based on a diaphragmatic correlate of respiratory motion. Motion artifacts and blurring can be reduced relative to three‐dimensional cone‐beam (3D CBCT), allowing ...
Colton Baley   +4 more
wiley   +1 more source

Particle Identification for Physics beyond the LHC

open access: yes, 2003
Accelerator physics beyond the LHC is expected to provide precision in the study of new physics processes which the LHC may have already unveiled and to extend the high energy frontier beyond its reach, in the multi-TeV domain. In this paper I review the
Battaglia   +4 more
core   +2 more sources

Is Physics Sick? [In Praise of Classical Physics] [PDF]

open access: yesarXiv, 2012
In this paper, it is argued that theoretical physics is more akin to an organism than to a rigid structure.It is in this sense that the epithet, "sick", applies to it. It is argued that classical physics is a model of a healthy science, and the degree of sickness of modern physics is measured accordingly.
arxiv  

Innovative Applications of Genetic Algorithms to Problems in Accelerator Physics

open access: yes, 2013
The genetic algorithm (GA) is a powerful technique that implements the principles nature uses in biological evolution to optimize a multidimensional nonlinear problem.
A. Hofler   +7 more
semanticscholar   +1 more source

Enhanced analysis of gating latency in 0.35T MR‐linac through innovative time synchronization of a motion phantom and plastic scintillation detector

open access: yesJournal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose This study aims to evaluate how different gantry angles, breathing rates (BPM), cine image speeds, and tracking algorithms affect beam on/off latency and the subsequent impact on target dose for a 0.35T MR‐Linac with a 6 MV FFF beam.
Mateb Al Khalifa   +4 more
wiley   +1 more source

Recent results of the CMS experiment

open access: yes, 2014
The CMS experiment is a multi-purpose detector successfully operated at the LHC where predominantly pp collisions take place at various centre-of-mass energies up to sqrt(s)=8 TeV so far.
Sonnenschein, Lars
core   +1 more source

Modern Mathematical Physics: what it should be? [PDF]

open access: yesarXiv, 2000
Personal view of author on goals and content of Mathematical Physics.
arxiv  

Methods for Analyzing Pathways through a Physics Major [PDF]

open access: yes, 2016
Physics Education Research frequently investigates what students studying physics do on small time scales (e.g. single courses, observations within single courses), or post-education time scales (e.g., what jobs do physics majors get?) but there is little research into how students get from the beginning to the end of a physics degree.
arxiv   +1 more source

Decoding Sources of Energy Variability in a Laser-Plasma Accelerator

open access: yesPhysical Review X, 2020
Andreas R. Maier , Niels M. Delbos, Timo Eichner, Lars Hübner, Sören Jalas, Laurids Jeppe, Spencer W. Jolly , Manuel Kirchen , Vincent Leroux , Philipp Messner, Matthias Schnepp, Maximilian Trunk, Paul A.
A. Maier   +14 more
semanticscholar   +1 more source

UR‐cycleGAN: Denoising full‐body low‐dose PET images using cycle‐consistent Generative Adversarial Networks

open access: yesJournal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose This study aims to develop a CycleGAN based denoising model to enhance the quality of low‐dose PET (LDPET) images, making them as close as possible to standard‐dose PET (SDPET) images. Methods Using a Philips Vereos PET/CT system, whole‐body PET images of fluorine‐18 fluorodeoxyglucose (18F‐FDG) were acquired from 37 patients to ...
Yang Liu, ZhiWu Sun, HaoJia Liu
wiley   +1 more source

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