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Wakefield acceleration in dielectric loaded structures is discussed in this paper. We present a description of the dielectric wakefield accelerator concept, comparing some features of the collinear and the two beam accelerator configurations. The Argonne Wakefield Accelerator Facility (AWA) is discussed in detail, including major upgrades that are presently taking place. The basic features and ...

The final focus system for a 5 TeV collider may be greatly shortened, from 40 km to 0.1-1 km, provided chromatic correction is abandoned, and replaced with ultra-low energy spread of 10%. A conventional singlefrequency linac cannot produce bunches of the requisite length and charge, with an energy spread this small. In this note we elaborate on previous discussion of harmonic acceleration for t...

We describe a Bayesian learning algorithm for Robust General Linear Models (RGLMs). The noise is modeled as a Mixture of Gaussians rather than the usual single Gaussian. This allows different data points to be associated with different noise levels and effectively provides a robust estimation of regression coefficients. A variational inference framework is used to prevent overfitting and provid...

BACKGROUND Voltage-sensitive dye optical imaging is a promising technique for studying in vivo neural assemblies dynamics where functional clustering can be visualized in the imaging plane. Its practical potential is however limited by many artifacts. NEW METHOD We present a novel method, that we call "SMCS" (Spatially Structured Sparse Morphological Component Separation), to separate the rel...