Results 111 to 120 of about 14,611,742 (406)
Axial cosinoidal structured illumination using phase modulation [PDF]
arXiv, 2020 We propose a novel method for generating axial cosine structured light by using phase-only spatial light modulator. We implemented axial cosine structured light using holographic technique. The computer generates double concentric annular slits with different radius, a prism phase is applied on the slits to tilts the beam that incidents on the slits ...
arxiv
Efficient post-processing of electromagnetic plane wave simulations to model arbitrary structured beams incident on axisymmetric structures [PDF]
arXiv, 2023 The study of an optical beam interacting with material structures is a fundamental of nanophotonics. Computational electromagnetic solvers facilitate the rapid calculation of the scattering from material structures with arbitrary geometry and complexity, but have limited efficiency when employing structured excitation fields.
arxiv
Journal of Applied Clinical Medical Physics, EarlyView.Abstract Purpose In radiotherapy, body contour inaccuracies may compromise the delineation of adjacent structures and affect calculated dose. Here, we evaluate the un‐editable body contours auto‐generated by Ethos versions 1.0 (v1) and 2.0 (v2) treatment planning softwares for two simulated cases: weight‐loss and bolus application, particularly ...
Abby Yashayaeva +2 more
wiley +1 more source
Nuclear structure - The future with radioactive beams
Journal of Research of the National Institute of Standards and Technology, 2000 Some examples of new phenomena expected at extreme values of neutron and proton number are discussed, including soft dipole modes and neutron-proton pairing. First results on the N = Z nucleus (62)Ga are presented in the context of the competition between T = 0 and 1 states in odd-odd, self-conjugate nuclei.
openaire +3 more sources
Vibration Suppression of a Large Beam Structure Using Tuned Mass Damper and Eddy Current Damping
, 2014 For a few decades, various methods to suppress the vibrations of structures have been proposed and exploited. These include passive methods using constrained layer damping (CLD) and active methods using smart materials. However, applying these methods to
J. Bae +4 more
semanticscholar +1 more source
Journal of Applied Clinical Medical Physics, EarlyView.Abstract Purpose PreciseART, an adaptive radiation therapy (ART) software for helical tomotherapy (HT), was integrated into the Precision treatment planning system (Accuray, Inc., Sunnyvale, CA). It supports automatic monitoring of dose variations to both the target and organs at risk (OARs) throughout the treatment course.
Yawitta Maneepan +4 more
wiley +1 more source
Effect of finite beam width on current separation in beam plasma system: Particle-in-Cell simulations [PDF]
arXiv, 2015 The electron beam propagation in a plasma medium is susceptible to several instabilities. In the relativistic regime typically the weibel instability leading to the current separation dominates. The linear instability analysis is carried out for a system wherein the transverse extent of the beam is infinite.
arxiv
Model Reduction Technique Tailored to the Dynamic Analysis of a Beam Structure under a Moving Load
, 2014 This study presents a technique that uses a model reduction method for the dynamic response analysis of a beam structure to a moving load, which can be modeled either as a moving point force or as a moving body.
Yuanchang Chen +2 more
semanticscholar +1 more source
Journal of Applied Clinical Medical Physics, EarlyView.Abstract Purpose The goal of this study was to assess the feasibility of a cost‐effective prototype of a laser‐based respiratory motion detection system utilizing a Leuze LDS for breath monitoring through calibration and volunteer tests. Methods This study was performed using the Anzai AZ‐773 V and computerized imaging reference systems (CIRS) motion ...
Isnaini Nur Islami +6 more
wiley +1 more source
A positive taper traveling-wave tube [PDF]
, 1969 Synchronism can be maintained between the RF beam current and the circuit electromagnetic waves over substantially the entire length of a traveling-wave tube by increasing the pitch of the last portion of the helical wave structure.
Grechberg, R. W., Roberts, L. A.
core +1 more source