X-ray (noun)
Definition
“X-ray” refers to a form of electromagnetic radiation that has higher energy and shorter wavelengths than visible light. X-rays are commonly used in various fields, including medicine, industry, and scientific research, for imaging and detecting objects and structures that are not visible to the naked eye.
Etymology
The term “X-ray” comes from the German word “X-Strahl,” which translates to “X-ray” or “unknown radiation.” The “X” in “X-ray” signifies the unknown nature of the radiation at the time of their discovery.
Synonyms
- Radiograph
- X-ray image
- Roentgenogram (named after Wilhelm Röntgen, the discoverer of X-rays)
- Radiogram
Antonyms
- Visible light
- Infrared radiation
- Ultraviolet radiation
Example
The dentist used an X-ray to examine the patient’s teeth, revealing hidden cavities that were not visible during the regular dental examination.
FAQs (Frequently Asked Questions)
How are X-rays produced?
X-rays are produced when high-energy electrons collide with a metal target, such as tungsten, in a process called bremsstrahlung (braking radiation). The collision causes the electrons to slow down, and they emit X-ray photons as a result.
What is the use of X-rays in medicine?
X-rays are widely used in medical imaging to visualize the internal structures of the body, such as bones, organs, and tissues. They can help diagnose conditions, detect fractures, and guide medical procedures.
Are X-rays harmful?
X-rays can potentially be harmful if a person is exposed to high doses of radiation over an extended period. However, the doses used in medical imaging are typically low and considered safe. Protective measures, such as lead shielding, are used to minimize exposure.
Can X-rays be used for security purposes?
Yes, X-rays are used in security systems, such as airport scanners, to detect concealed objects or contraband. X-ray technology can reveal the contents of luggage or packages without the need for physical inspection.
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