👉 Photons, or light particles, are fundamental components of electromagnetic radiation and play a crucial role in various physical processes. These particles carry energy and momentum, but unlike matter, they do not have mass. When photons interact with matter, they can be absorbed, reflected, or transmitted, depending on the properties of the material and the photon's energy. To protect biological systems and materials from harmful effects, light particles are often filtered or shielded using materials that absorb or scatter high-energy photons, such as X-rays and gamma rays. This protection is essential in medical imaging, radiation therapy, and other applications where exposure to harmful light particles could cause damage. For example, lead and certain plastics are effective at blocking X-rays due to their high density and ability to absorb these energetic photons, ensuring safety while still allowing visible light to pass through.
