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The Functions of X-ray Machines
X-rays are safe even if radiation shooting can sound scary however if you want peace of mind by understanding x-rays and be free of fears. In this article, we will discuss how the x-ray machines work and understand x-rays. In 1895 x-rays were discovered during such time when a physicist was experimenting an electron beam in the tube for gas release. The fluorescent in the lab glowed when the light in the beam was lit. Fluorescents glow if they are put in front of electromagnetic radiation. The discovery of x-ray happened when the cardboard surrounding the tube did not prevent the radiation.
He continued placing several objects before the fluorescent screen and tube to find out if any of them would prevent the radiation. The bones of his hand were projected when he put his hand before the fluorescent and the tube. He discovered x-rays and its application in the medical field, so an x-ray is electronic radiation. Even though the wavelength is short x-ray can compare to visible light only that the human eye cannot see it. There is high energy to x-ray because of the short wavelengths.
these short wavelengths can go through many objects including the human body tissues. No wonder in an x-ray we see the bones through a human body. When a detector is placed on the other side, x-rays passing through the body assume a black shadow but anything like bones absorbed by the x-rays is white.
In the center of the x-ray machine in the vacuum glass tube there is an electrode pair. If there is negative charging of a cathode there is a heated filament that is through the x-ray machines current. The filament’s electrons come off to the surface.
Further, tungsten anode is charged positively attract the electrons through the tube. This process form enough energy to form an x-ray using a form of high energy photon. Photons have thick lead however a small window allows escape through a narrow beam to the patient. This pattern of x-ray is captured by the camera and films are developed. But this time instead of a visible light there is a chemical reaction.
You can further see soft tissues through an x-ray. Contrast media is put in the body. There is a liquid known as contract media which is injected so that there can be ease in x-ray absorption. Upon swallowing barium, x-rays absorb the media which is infused in the body to make the body visible. Lung cancer is easily diagnosed through this process as well as other cancer types.