Equipment for High Energy X-ray Use

Licensing of medical practitioners to use X-ray equipment.

Nanostructure by high-energy X-ray diffraction

X-Ray Diffraction (XRD) has long been used to determine the atomic-scale structure of materials. This technique is based on the fact that the wavelength of X-rays is comparable to the distances between atoms in condensed matter. When a material exhibiting a long-range (i.e. at least micrometers), periodic atomic order, such as a crystal, is irradiated with X-rays it acts as an extended, well-de...

The high energy X-ray universe.

Since its beginning in the early 1960s, the field of X-ray astronomy has exploded, experiencing a ten-billion-fold increase in sensitivity, which brought it on par with the most advanced facilities at all wavelengths. I will briefly describe the revolutionary first discoveries prior to the launch of the Chandra and XMM-Newton X-ray observatories, present some of the current achievements, and of...

Gas Scintillation Proportional Counters for High-Energy X-ray Astronomy

A focal plane array of high-pressure gas scintillation proportional counters (GSPC) for a balloon-borne hard-x-ray telescope is under development at the Marshall Space Flight Center. These detectors each have an active area of ~ 20 cm, and are filled with a high pressure (10 Pa) xenon-helium mixture. Imaging is via crossed-grid position-sensitive phototubes sensitive in the UV region. The perfo...

High-Energy 3-D X-ray Tomography for Container Inspection

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...