Period: 2 By: Mozzel Rodriguez
An electromagnetic wave of high energy and a very short wavelength, which is able to pass through many materials opaque to light. X-rays are very high frequency waves, and carry a lot of energy. The fact that they pass through most substances makes them useful in medicine and industry to see inside things. X-rays are given off by stars, and strongly by some types of nebula. An x-ray machine works by firing a beam of electrons at a "target". If we fire the electrons with enough energy, x-rays will be produced.
Another common application is in the form of X-ray machines, which take photos of a patient’s body. If an arm or leg were broken for example, then this limb would be put in front of the X-ray with a piece of photographic film behind. The X –ray is turned on briefly and goes through to the film. The rays go through the skin and flesh easily, showing up as dark areas on the film, but with more difficulty through bone. They are slowed down and so these areas are much lighter. X-rays can also be used to kill cancer cells, but also kill healthy cells, so must be used with much care.
What they really do.
This is a picture of what a x-rays are suppose to work.
This is the machines that they use in airports that looks inside the peoples luggage.
The Hospital Machines
This is one of the machine that they use in the hospital that they use for medical purposes. They do a full body scan and see whats wrong with certain body parts.
The benefits and advantages of X-rays compared to other types of imaging include that they are fast — the results of X-rays are often available the same day, in simple cases even within the hour, they are painless and non-invasive, they don’t require any special preparation (except when contrast media is used) and they require no recovery time — you can go straight back to work or school after an X-ray is finished.
Ionizing radiation can cause cell damage. Being exposed to significant amounts of radiation from X-rays and CT scans may increase your risk of developing cancer a decade or more into the future. However, this risk is low and needs to be weighed up against the benefits. Different scans involve different amounts of radiation. With a very low dose X-ray, such as a single chest X-ray, the dose of radiation is roughly the same as you would receive from the general environment over about a week, or from taking a long-distance, international plane flight.