The field of sea freight container inspection has been driven by the U.S. home resolution number one “H.R.1” in the last decade. This law motivated various major research projects inside and outside Europe. The Fraunhofer Development Center X-ray Technology EZRT in Fürth / Germany was partner in ECSIT a three-year project funded by the German ministry for science and research. Within this conte...

One of the most prominent properties of young stars is strong and variable X-ray emission. The All-Sky Survey performed by ROSAT and the new high sensitivity and high spectral resolution X-ray mission XMM provide complementary information about stellar X-ray sources. While the spatial completeness of the survey is indispensable for the identification of related groups of stars, detailed variabi...

We present optical and X-ray data of the Cataclysmic Variable RX0744{52 discovered using ROSAT by Motch et al. High resolution spectroscopy centred on the H line indicates a probable orbital period of 3.60 hrs. From its distance (obtained using polarimetry), its X-ray luminosity, its X-ray colour and its X-ray/UV+Opt ratio, we suggest that RX0744{52 is an new Intermediate Polar. The absence of ...

A number of research groups have been investigating the use of dedicated breast computerized tomography (CT). Preliminary results have been encouraging, suggesting an improved visualization of masses on breast CT as compared to conventional mammography. Nonetheless, there are many challenges to overcome before breast CT can become a routine clinical reality. One potential improvement over curre...

To develop volumetric micro-CT fluoroscopy for small animal imaging, we have proposed a cone-beam system with multiple x-ray sources. In this paper, we extend Parker's single-source half-scan weighting scheme to the case of an odd number of x-ray sources that are equiangularly distributed, and apply it for half-scan Feldkamp-type reconstruction in this unique geometry. In the numerical simulati...

− The work describes the present status of development of the portable X–ray CT mini system. The system is capable to operate also as a quantum digital X–ray scanner. Detection unit is constructed from double line of 2×1024 SI GaAs pixel detectors with pitch of 250 μm. The system allows operation in the single photon counting regime and the energy separation (one energy window) with estimated s...