Semiconductor X-Ray Detectors

X-ray imaging detectors

X-Ray Data Booklet Section 4.5 X-RAY DETECTORS

A wide variety of x-ray detectors is available, some counting single photons, some providing only measurements of count rate or total flux, others measuring the energy, position, and/or incidence time of each x-ray. Table 4-2 provides typical values for useful energy range, energy resolution, dead time per event, and maximum count rate capability for common x-ray detectors. For special applicat...

Synthesis and characterization of Gd2O2 S: Tb3+ phosphor powder for X-ray imaging detectors

Gadolinium oxysulfide phosphor doped with trivalent terbium have been synthesized using urea homogenous precipitation and followed by sulfurization at 800 °C under argon atmosphere. Structural and morphological of synthesized phosphor powder were characterized by x-ray diffraction (XRD), scanning electron microscopy (SEM) and Fourier transform infrared spectrometry (FT-IR). Hexagonal structure ...

Calculation of the Modulation Transfer Function of Hybrid Semiconductor Pixel Detectors for X-ray Imaging

The hybrid structure of solid-state pixel detector has a semiconductor sensor that converts the X-ray photons to electric pulses, and an electronics chip that processes and stores the signals. The signals are transferred from the sensor chip to the electronic chip through metallic bump bonds, one per pixel. Image quality parameters have to be assessed in order to estimate the imaging capabiliti...

High Resolution X-Ray Spectroscopy with Compound Semiconductor Detectors and Digital Pulse Processing Systems

The advent of semiconductor detectors has revolutionized the broad field of X-ray spectroscopy. Semiconductor detectors, originally developed for particle physics, are now widely used for X-ray spectroscopy in a large variety of fields, as X-ray fluorescence analysis, X-ray astronomy and diagnostic medicine. The success of semiconductor detectors is due to several unique properties that are not...