Beamwidth
Beamwidth
Beamwidth (/bi:m.wɪdθ/), in the context of medical imaging, refers to the angular or linear width of a beam of ultrasound, X-ray, or other forms of medical imaging. The term is commonly used in radiology and medical imaging technology.
Etymology
The term "beamwidth" is derived from the English words "beam" and "width". The word "beam" comes from the Old English 'beam' meaning a ray of light or a ray of ultrasound, X-ray, etc., in the context of medical imaging. The word "width" comes from the Old English 'wīdthu' meaning breadth.
Definition
Beamwidth is the measure of the angular or linear spread of energy in a beam of ultrasound, X-ray, or other forms of medical imaging. It is typically measured at the half-power points (i.e., the points on either side of the maximum where the power is half of the maximum power), also known as the -3 dB points.
Related Terms
- Ultrasound: A medical imaging technique that uses high-frequency sound waves to create images of the inside of the body.
- X-ray: A form of electromagnetic radiation with very high energy and very short wavelength, used in medical imaging to visualize the internal structure of the body.
- Radiology: The medical specialty that uses medical imaging to diagnose and treat diseases within the body.
- Medical Imaging: The technique and process of creating visual representations of the interior of a body for clinical analysis and medical intervention.
See Also
- Resolution (Medical Imaging): The smallest change that can be detected in a measurement.
- Field of View: The extent of the observable world that is seen at any given moment.
External links
- Medical encyclopedia article on Beamwidth
- Wikipedia's article - Beamwidth
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