An interpolating two-dimensional X-ray imaging detector based on a single-photon counter with gas amplification by GEM (gas electron multiplier) structures is presented. The detector system can be used for time-resolved structure research down to the micro s time domain. The prototype detector has been tested at the SAXS (small-angle X-ray scattering) beamline at ELETTRA synchrotron light sourc...

A detector system, called DUVEX, has been developed for the soft-x-ray and extreme ultraviolet domain. It consists in a YAG :Ce scintillator coupled to a photomultiplier module working under vacuum in counting mode. The design and the performances of this detector in terms of yield, absolute efficiency, response and noise are reported. Spectra in the soft x-ray range of different elements (W, A...

X-ray photon correlation spectroscopy (XPCS) provides an opportunity to study the dynamics of systems by measuring the temporal fluctuations in a far-field diffraction pattern. A two-dimensional detector system has been developed to investigate fluctuations in the frequency range of several Hz to kHz. The X-ray detector system consists of a thin 100 microm scintillation crystal coupled to a Gei...

Computed tomography scanners use an X-ray tube and detector system rotating around the patient to create 3-D images. The X-rays are generated when accelerated electrons hit an anode. These X-rays will travel through the patient’s body being more or less absorbed by different tissues. A detector converts the received X-ray radiation into photons and then the image can be reconstructed. In the co...

With wide industrial application, computerized tomography (CT) is a rapidly developing technique that is especially useful for imaging and measuring multi-component and multi-phase processes. Tomographic measurements can be obtained by using different sensors, such as X-ray, ultrasonic, optical and microwave sensors, as well as electrical impedance electrodes [6]. X-ray, ultrasonic and microwav...

Spectrally selective X-ray imaging provides improved material and tissue discrimination in comparison with the state-of-the-art dual energy technologies that are commonly used medical, industrial, security applications. Cadmium telluride (CdTe)- cadmium zinc (CdZnTe)-based line scanners small size two-dimensional sensors emerging to market, but need for large-scale panels is axiomatic. In this ...