Digital X-ray Machine

The traditional X-ray machines are expected to reduce in use as many large companies introduce new X-ray systems that replace x-rays films with sophisticated electronic images.
This change in radiology by the electronic revolution is pity nicer, for the simple reason that the pictures taken by X-ray film are so large and these may be in the range of 8 by 10 inches up to 18 by 24 inches of finely detailed images. But computers can finally handle the tens of millions of bytes of data needed to make and manipulate such big pictures.
The pictures produced by X-ray film or by digital x-ray machines (digital plates) appear at first glance to be roughly the same. Both of the images are produced when a stream of X-rays is shot through the body onto a sheet of film or a digital box. But with the radiographic films, the picture cannot be seen until the negative is developed, which usually takes at least a couple of hours in a busy hospital, and once taken, the image cannot be manipulated to enhance one part of the image at the expense of another. The huge film negatives must be stored in great film library rooms and shipped by mail or messenger to be viewed by other doctors.
Because digital information is inherently more flexible than an image embedded in a piece of film, therefore it will be some immediate advantages to digital X-rays. In both cases, the X-rays are absorbed by dense tissue, such as bones, so few rays get through to darken the film. Thus bones show up white. X-rays are not absorbed as much by tissue such as muscle, so the rays get through to make dark gray areas on the picture.
The main difference is how the X-ray patterns of white and gray are turned into images. Using film, chemicals in the emulsion darken when hit by X-rays. In digital systems, a chemical layer of cesium iodide first absorbs the X-rays and gives off light, then photodiodes made of amorphous silicon pick up the light and give off corresponding electronic signals that light up pixels on a video screen.
Parts of a Digital X-Ray Machine:
The digital X-Ray machine consists of an X-Ray tube and driver to source X-Ray. The X-Ray passes through the patient's body and the digital camera (located on the other side of the patient) captures the resulting image. The main base station controls the X-Ray tube, analyzes the image and displays the image on the CRT.
Digital Camera:
The digital camera converts the received image into digital signal and transfers the digitized image to the base station through a fiber optic link.
Main Base Station
The functions of the main base station includes Drive and control the X-Ray tube,Communicate with the digital camera system through Fiber, Store the pictures on the hard disk for image retrieval and processing, Interface to an operator console for overall system control and image manipulation, Analyze and enhance the image stored on the hard disk and display the enhanced X-Ray image on a CRT monitor.

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