Which type of radiation is typically used in medical imaging?

X-rays are the primary type of radiation utilized in medical imaging, particularly in techniques such as X-ray imaging, computed tomography (CT) scans, and fluoroscopy. They possess the ability to penetrate body tissues, allowing them to create detailed images of internal structures. The effectiveness of X-rays in distinguishing between different types of tissues—such as bones, organs, and tumors—makes them invaluable in diagnostic medicine.

Gamma radiation, while similar in some ways to X-rays, is generally derived from radioactive substances and is more commonly associated with nuclear medicine rather than standard imaging procedures. Beta particles and neutron radiation are not typically employed in medical imaging; their properties, such as lower penetration ability and higher biological damage potential, make them unsuitable for creating images of the body’s internal structures. Hence, X-rays are the preferred choice due to their optimal balance of penetrating power and imaging capability.