Modernization of X-Ray Detectors in Medical Imaging

The modern day healthcare systems have experienced a timely upgradation. Looking at the current trends, the need for x-ray detectors has swelled up quite majorly. This increase in demand for the equipment can be credited to transforming lifestyle and expansion of chronic diseases.

X-Ray Detector Market 

What Do X-Ray Detectors Do?

 With the help of X-ray imaging doctors get to diagnose the internal organs, as well as deliver clinical information regarding the human body. Interestingly, the technology related to x-ray detection has led to support several dedicated modalities like computed tomography (CT), angiography, radiography and mammography. Over the year, the design and manufacturing of x-ray detectors has been customized in order to suit varied medical applications. This has launched a new age of x-ray machines that are available in different shapes, sizes, spatial resolution, x-ray flux, frame rates etc.  Presently, integrating X-ray detectors can be seen as the most common type. Their operation is primarily based on scintillators as well as arrays of photodiodes created using amorphous silicon (a-Si) or crystalline silicon (Si).

Technology-Driven X-Ray Detectors

·         Improvements in thin film electronics have given a green signal for the expansion of large a-Si:H imaging arrays. This directly permits the creation of fat panel designs for solid state detectors which can be used for both fluoroscopy and digital radiography. The anticipated detector comprises of a CsI:T1 needle-like scintillation crystal layer present in front of a panel made out of a-Si:H.

·         On the other hand, in computed tomography (CT), there is a fresh introduction of linear detector array comprising of Gadolinium Oxysulfid ceramic scintillator rudiments, which are pasted onto photodiodes.

One must always remember that, the selection of a good detector material should focus on good incident X-rays absorption (α > 95%) together with high conversion efficiency of the captivated radiation energy in accordance to the electrical signal.