THE CHARGE -COUPLED DEVICE(CCD) FLUOROSCOPY

<span style="font-weight:bold;">TELEVISION CAMERA HAS TWO WAYS TO ELECTRONICALLY CONVERT THE VISIBLE IMAGE ON TO THE OUTPUT PHOSPHOR OF THE IMAGE INTENSIFIER INTO AN ELECTRONIC SIGNAL THE CHARGE-COUPLED DEVICE(CCD) IS ONE OF THEM.

CLASSMATES HARD AT WORK IN FLUOROSCOPY WE ARE X-RAY TECHNOLOGIST IN TRAINING

getting the hang of fluoroscopy

assisting in a barium study upper GI series

radiographer with linear machine at work

linear movement

THE SIMPLEST TOMOGRAPHIC EXAMINATION IS LINEAR TOMOGRAPHY.DURING LINEAR TOMOGRAPHY THE X-RAY TUBE IS ATTACHED MECHANICALLY TO THE IMAGE RECEPTOR AND MOVES IN ONE DIRECTION,WHILE THE IMAGE RECEPTOR MOVES IN THE OPPOSITE DIRECTION.ITS PRINCIPLE ADVANTAGE IS IMPROVE CONTRAST RESOLUTION THROUGH BLURRING OF UNDERLYING AND OVERLYING TISSUES THE SUBJECT CONTRAST OF TISSUE OF THE TOMOGRAPHIC SECTION IS ENHANCED.

Linear Tomography

IN LINEAR TOMOGRAPHY THE ONLY OBJECTS LYING IN THE OBJECT PLANE ARE PROPERLY IMAGED.OBJECTS ABOVE AND BELOW THIS PLANE ARE BLURRED BECAUSE THEY ARE IMAGED ACROSS THE FILM

linear motions

Linear tomography is one of the most basic technique as the tube and film more from the first position to the second,all points in the focal plane project to the same position on the x-ray film.
Points above or below the focal plane do not project to the same film positions and are blurred.By changing the relative motion of the film and tube, the focal plane can be adjusted upward or downward