A phosphorescent screen is a material that emits light after being energized by radiation or another form of energy, continuing to glow even after the energy source is removed. This property is utilized in various applications such as CRT displays, X-ray imaging, and glow-in-the-dark materials, where delayed light emission is beneficial.

Phosphorescent Screen

phosphorescent screen

Light emission is the process by which energy is released in the form of photons, typically occurring when electrons transition between energy levels in atoms or molecules. This phenomenon is foundational to technologies like LEDs and lasers, and is also essential in natural processes such as bioluminescence and stellar radiation.

light emission

Radiation is the emission or transmission of energy in the form of waves or particles through space or a material medium. It encompasses a wide range of phenomena, from electromagnetic radiation like light and radio waves to particle radiation such as alpha and beta particles.

radiation

energy source

CRT displays

X-ray imaging is a diagnostic technique that uses electromagnetic radiation to produce images of the internal structures of the body, primarily bones and certain tissues. It is a non-invasive method that helps in diagnosing fractures, infections, and diseases by providing a visual representation of the area of interest.

Relevant Degrees

Your Lessons