Results 121 to 130 of about 3,650,640 (366)

High-intensity lasers and research activities in China

open access: yesHigh Power Laser Science and Engineering
This paper provides an overview of the current status of ultrafast and ultra-intense lasers with peak powers exceeding 100 TW and examines the research activities in high-energy-density physics within China.
Yutong Li   +30 more
doaj   +1 more source

A Staged Muon-Based Neutrino and Collider Physics Program

open access: yes, 2012
We sketch a staged plan for a series of muon-based facilities that can do compelling physics at each stage. Such a plan is unique in its ability to span both the Intensity and Energy Frontiers as defined by the P5 sub-panel of the US High Energy Physics ...
/IIT, Chicago, Kaplan, Daniel M.
core   +1 more source

Long‐term stability analysis of beam shape in a robotic radiosurgery system

open access: yesJournal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose This study aimed to investigate the long‐term stability of CyberKnife beam profile parameters and assess their compliance with existing quality assurance (QA) guidelines. We evaluated beam profiles in both standard and diagonal planes over 3.5 years post‐installation to detect potential issues and ensure consistent beam quality.
Ryoichi Hinoto   +4 more
wiley   +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

Recent progress in atomic and molecular physics for controlled fusion and astrophysics

open access: yesMatter and Radiation at Extremes, 2021
Stefan Weber, Yong Wu, Jianguo Wang
doaj   +1 more source

Identifying the electron–positron cascade regimes in high-intensity laser-matter interactions

open access: yesNew Journal of Physics, 2019
Strong-field quantum electrodynamics predicts electron-seeded electron–positron pair cascades when the electric field in the rest-frame of the seed electron approaches the Sauter–Schwinger field, i.e. $\eta ={E}_{{\rm{RF}}}/{E}_{S}\sim 1$ .
C Slade-Lowther   +2 more
doaj   +1 more source

Beam model development and clinical experience with RadCalc for treatment plan quality assurance in online adaptive workflow with an MR‐linac

open access: yesJournal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose The aim of this work was to report on the optimization, commissioning, and validation of a beam model using a commercial independent dose verification software RadCalc version 7.2 (Lifeline Software Inc, Tyler, TX, USA), along with 4 years of experience employing RadCalc for offline and online monitor unit (MU) verification on the ...
Urszula Jelen   +3 more
wiley   +1 more source

Plasmonics in Nanoslit for Manipulation of Light

open access: yesIEEE Access, 2013
A nanoslit is capable of performing versatile functions in nanophotonic applications. In this invited paper, we discuss the physics and manipulation methods of surface plasmon excitation such as directional switching at a nanoslit. Furthermore, enhancing
Taerin Chung   +6 more
doaj   +1 more source

Demonstration of an enhanced dosing pattern for debulking large and bulky unresectable tumors via differential hole‐size spatially fractionated radiotherapy

open access: yesJournal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose/objective We propose a novel lattice deployment for spatially fractionated radiotherapy (SFRT) treatments. In this approach, a larger diameter high‐dose sphere is centrally placed in the bulky tumor mass and surrounded by smaller diameter high‐dose spheres.
Joshua Misa   +2 more
wiley   +1 more source

Kaon physics at high intensity machines [PDF]

open access: yesNuclear Physics B, 1987
Abstract The motivation for and present activity in rare kaon decay experiments are described. The reach of present and future accelerators for this physics is discussed.
openaire   +2 more sources

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