A comparative XMM-Newton archival data spectral study of the ultraluminous Xray source (ULX) M33 X-8 has been performed by using both the standard disk model and the newly developed slim disk models. The results of this analysis tend to confirm the hypothesis that M33 X-8 is an X-ray binary with a stellar-mass black hole accreting at super-Eddington rate.

The synthesis and structural characterization of the Nsubstituted bis(diphenylphosphanyl)amine Ph2PN(R)PPh2 (R = n-propyl, 1) is reported. Single crystals of 1 grown from dichloromethane/acetonitrile have been analyzed by Xray crystallography. The crystallographic study revealed that the diphenylphosphanyl groups in 1 are staggered relative to the PNP backbone as observed for other closely rela...

The St. Antonius Hospital Utrecht/Nieuwegein, the Netherlands, and Philips have announced an important breakthrough in the image-guided treatment of vascular patients. Using an innovative X-ray technology developed by Philips, the hospital’s interventional radiologists were able to dramatically reduce the amount of Xray radiation that patients are exposed to during image-guided endovascular pro...

1Senior Registrar, Endocrinology, 2Consultant Endocrinologist, 3Consultant Radiologist, 4Senior Registrar, Orthopedic, 5Consultant Orthopedic Surgeon, 6Consultant Histo Pathologist, National Hospital of Sri Lanka. Figure 1. Xray skull – lateral. Figure 2. Histology of the bone biopsy shows mature thick cortical lamellar bone with regular prominent cement lines (thick arrow) with prominent osteo...

Semiconductor substrates made from single crystal materials need to be cut precisely along a fixed axis during the manufacturing process of the semiconductor components. Thus, measuring the crystal orientation is critical. For these measurements, Xray techniques demonstrate the highest precision. This report presents an outline of two popular X-ray diffraction techniques, the diffractometer and...

We analyze samples of nearby clusters taken from the Abell catalog and the Xray Sample of Bright Clusters (De Grandi et al 1999) including a wide range of Xray luminosities. Using the usually adopted background subtraction procedures, we find that galaxies in clusters selected by means of their X-ray emission show a flat luminosity function (faint end slope α ≃ −1.1) consistent with that derive...

The development effort is driven by the need for a new type of x-ray beam position monitor, which can detect the centre of gravity of the undulator beam. A residual gas xray beam position monitor for the PETRA III storage ring was developed and tested.

ρ-filtered reconstruction in 2D xray CT is comparedand contrasted to 3D thermoacoustic tomography. The math issimpler in 3D than 2D and a simple example sheds light on earlyCT results indicating image quality loss in ρ-filteredreconstruction.