We study the soft X-ray emission (0.1 – 1 keV) from the Warm-Hot Intergalactic Medium (WHIM) in a hydrodynamic simulation of a Cold Dark Matter universe. Our main goal is to investigate how such emission can be explored with a combination of imaging and spectroscopy, and to motivate future X-ray missions. We first present high resolution images of the X-ray emission in several energy bands, in ...

Ionization Chambers have been commonly used at beamlines in many synchrotron radiation facilities. Typical ADC ion chambers are pictured in Figure 1. The chambers generate a current proportional to the incident X-ray beam intensity. The ionization chamber allows users to determine the change in beam position in a single axis by comparing two signals that are created as the beam passes through t...

Supporting the knowledge of artworks, past times and civilizations by physics and, in general, sciences have been now recognised to be a very valuable possibility, even though scientific measurements cannot definetely replace historical archaeological studies. In this framework, small particle accelerators, i.e., low voltage electrostatic systems, can play an important role for both material an...

in this paper a novel fuzzy scheme for medical x-ray image classification is presented. in this method, any image is partitioned in to 25 overlapping subimages and then shape-texture features are extracted from shape and directional information extracted from any subimage. in the classification stage, we apply a fuzzy membership to any subimage with respect to euclidean distance between feature...