What is the difference between x-rays and gamma rays?

X-rays and gamma rays are both forms of electromagnetic radiation, but they differ in their origin. X-rays are primarily man-made and are generated by electronic devices, such as X-ray tubes, when high-energy electrons collide with a target material. This process is often used in medical imaging to visualize the internal structures of the body and is critical in dental radiography to examine teeth and bones.

On the other hand, gamma rays occur naturally as a result of radioactive decay of atomic nuclei. They are high-energy photons emitted by radioactive materials and are often associated with nuclear reactions and cosmic phenomena. Gamma rays are also utilized in medical applications, particularly in cancer treatment (radiotherapy) and diagnostic imaging (such as PET scans), but their innate origin marks a key distinction from X-rays.

Understanding this difference is essential for recognizing the applications and safety protocols necessary when working with these types of radiation in a clinical setting.