This paper examines the effects of quadrupole fringe fields in the FERMILAB 50 GeV muon storage ring Feasibility I Study. This is done by means of precision multiturn ray-tracing and shows no important contributions from fringe fields in terms of dynamic aperture (as long as harmful resonances are avoided), in present disagreement with similar studies which are the subject of earlier publication.

We present a practical regular grid wave traveltime calculation that is based on Huygens wavefront expansion and grid traveltime mapping. Wavefront expansion is carried out by finite difference approximations to the equations that are equivalent to the Eikonal equation with a fixed time interval. Mapping traveltime from wavefront to regular grids is based on a dynamic ray tracing paraxial appro...

Although ray tracing based propagation prediction models are popular for indoor radio wave propagation characterization, most of them do not provide an integrated approach for achieving the goal of optimum coverage, which is a key part in designing wireless network. In this paper, an accelerated technique of three-dimensional ray tracing is presented, where rough surface scattering is included ...

We present an interactive GPU-based algorithm for accurately rendering high-quality, dynamic glossy reflection effects from both HDR environment maps and local scene objects. Our method uses hardware rasterization to produce primary pixels, and GPU-based BRDF importance sampling [CK07] to quickly generate reflected rays. We utilize a fast GPU ray tracer proposed by Carr et al. [CHCH06] to compu...

Copyright is held by the author/owner(s). ISMAR 2013, October 1 – 4, 2013, Adelaide, Australia. ACM 978-1-XXXX-XXXX-X/XX/XX. Abstract Ray tracing is an elegant and intuitive image generation method. The introduction of GPU-accelerated ray tracing and corresponding software frameworks makes this rendering technique a viable option for Augmented Reality applications. Spatial Augmented Reality emp...

With the advances in computer processing that have yielded an enormous increase in performance, numerical analytical approaches based on electromagnetic theory have recently been applied to mobile radio propagation analysis. One such approach is the ray-tracing method based on geometrical optics and the uniform geometrical theory of diffraction. In this paper, ray-tracing techniques that have b...

Ray tracing is a technique based on the numerical simulation of geometrical optics and the uniform theory of diffraction, two well-known approximate methods for estimating a highfrequency electromagnetic field, based on the ray theory of field propagation. Radio-wave propagation prediction models based on ray tracing play an important role in wireless network planning, as they take into account...

The ray tracing scheme is one of the most complete and efficient rendering methods. A major drawback of this model is its high computational cost which limits its practical use. Moreover, the quest for realistic rendering requires larger and larger databases to describe scenes. With the development of distributed memory parallel computers such as the CRAY T3E, the most promising way to improve ...

Ray tracing is a fundamental process in many areas including computer graphics and medical applications. Different hierarchical acceleration structures for ray tracing have been developed. Such ray tracing approaches executed on advanced many-core processors such as GPU, however, turns out to be memory bounded due to their frequent search operations in the hierarchical structures. This paper pr...