The Use of X-rays for Diagnosis and Therapy Essays

The Use of X-rays for Diagnosis and Therapy Essays

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According to Oxford Dictionaries, an X-ray, also known as a type of radiation is defined as an electromagnetic wave of high energy and very short wavelength (between ultraviolet light and gamma rays), which is able to pass through many materials opaque to light and being absorbed to different degrees by different materials. In medicine, an X-ray is produced by the deceleration of charged particles, especially electrons, or by electron transitions in atoms. An X-ray machine sends these particles through the body. The images are recorded on a computer to produce a radiograph. Structures that are dense will block most of the charged particles and will appear white. A special dye that contains metal or contrast media is used to highlight areas of the body. These areas will also appear white. Structures containing air will be shown as black. Muscle and fat tissues and fluid would be shown as shades of grey.
X-rays were discovered on November 8th, 1895 by Wilhelm Conrad Roentgen (1845-1923), who was a Professor at Wuerzburg University in Germany. He noted that it was a new type of ray and that is capable of penetrating most substances casting shadows of solid objects. He also discovered that it can penetrate the tissues of humans but not bones and metal objects. Approximately a month after the announcement of the amazing discovery, Europe and the United States of America made radiographs which were used to guide surgeons. Six months after, it was used to guide battlefield physicians to located bullets in troops. In 1913, high vacuum X-ray tubes designed by Coolidge became available. It further advanced in 1931 with double the amount of voltage for industrial purposes. After the discovery of X-rays in 1895, French scientist Henri Becque...

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 MRI. (n.d.). Definition. Retrieved February 6, 2014, from
 The Role of Radiology in the Future of Sonography : American Journal of Roentgenology: Vol. 190, No. 4 (AJR). (n.d.). The Role of Radiology in the Future of Sonography : American Journal of Roentgenology: Vol. 190, No. 4 (AJR). Retrieved February 7, 2014, from
 What Is Magnetic Resonance Imaging (MRI)?. (n.d.). WebMD. Retrieved February 8, 2014, from
 contrast medium (medicine). (n.d.).Encyclopedia Britannica Online. Retrieved February 8, 2014, from

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