Results 71 to 80 of about 586,724 (257)
Journal of Applied Clinical Medical Physics, EarlyView.Abstract Purpose To compare plan quality among photon volumetric modulated arc therapy (VMAT) and intensity‐modulated proton therapy (IMPT) with robustness using three different proton beam delivery systems with various spot size (σ) ranges: cyclotron‐generated proton beams (CPBs) (σ: 2.7–7.0 mm), linear accelerator proton beams (LPBs) (σ: 2.9–5.5 mm),
Tara Gray +9 more
wiley +1 more source
Small-angle scattering in a marginal Fermi-liquid
, 2002 We study the magnetotransport properties of a model of small-angle scattering in a marginal Fermi liquid. Such a model has been proposed by Varma and Abrahams [Phys. Rev. Lett.
Carter, E. C., Schofield, A. J.
core +1 more source
The effect of multi‐leaf collimator leaf width on VMAT treatment plan quality
Journal of Applied Clinical Medical Physics, EarlyView.Abstract Background The advent of volumetric modulated arc therapy (VMAT) in radiotherapy has made it one of the most commonly used techniques in clinical practice. VMAT is the delivery of intensity modulated radiation therapy (IMRT) while the gantry is in motion, and existing literature has shown it has decreased treatment delivery times and the ...
Gregory Sadharanu Peiris +3 more
wiley +1 more source
Small Angle Scattering data analysis for dense polydisperse systems: the FLAC program
, 2000 FLAC is a program to calculate the small-angle neutron scattering intensity of highly packed polydisperse systems of neutral or charged hard spheres within the Percus-Yevick and the Mean Spherical Approximation closures, respectively.
Achille Giacometti +12 more
core +2 more sources
Scattering theory without large-distance asymptotics: scattering boundary condition [PDF]
arXiv, 2015 By large-distance asymptotics, in conventional scattering theory, at the cost of losing the information of the distance between target and observer, one arrives at an explicit expression for scattering wave functions represented by a scattering phase shift. In the present paper, together with a preceding paper (T. Liu,W.-D. Li, and W.-S.
arxiv
Multi‐institutional study on image quality for a novel CBCT solution on O‐ring linac
Journal of Applied Clinical Medical Physics, EarlyView.Abstract Introduction This work presents a multi‐institutional study on image quality provided by a novel cone beam computed tomography (CBCT). The main goal is to investigate the consistency of imaging performance across multiple institutions.
Luis Agulles‐Pedrós +11 more
wiley +1 more source
Microscale Fragmentation and Small-Angle Scattering from Mass Fractals
Advances in Condensed Matter Physics, 2015 Using the small-angle scattering method, we calculate here the mono- and polydisperse structure factor from an idealized fragmentation model based on the concept of renormalization.
E. M. Anitas
doaj +1 more source
Investigation of silica - PVA xerogel microstructure evolution during thermal treatment by SANS experiment [PDF]
, 2004 The purpose of the study was to investigate the appearance of certain microstructures developing in the SiO2/PVA nanocomposite xerogels at different temperatures by small-angle neutron scattering (SANS). The samples were prepared by the alcoxide route of
Almásy, László +3 more
core +1 more source
Asymptotically Scattered Spaces [PDF]
arXiv, 2012 We define thin and asymptotically scattered metric spaces as asymptotic counterparts of discrete and scattered metric spaces respectively. We characterize asymptotically scattered spaces in terms of prohibited subspaces, and classify thin metric spaces up to coarse equivalence. We introduce the types of asymptotically scattered spaces and construct the
arxiv
Non-magnetic simplified cylindrical cloak with suppressed zero-th order scattering [PDF]
, 2008 A new type of simplified cloaks with matched exterior boundaries is proposed. The cloak uses non-magnetic material for the TM polarization and can function with a relatively thin thickness. It is shown that the $zero^{th}$ order scattering of such cloak is dominant among all cylindrical scattering terms.
arxiv +1 more source