• Absorbers are plates of material used to stop/ slow down particles
  • Can be made up of many different materials lead plate.png
  • For example, lead, which would only slow down small particles, such as electrons, but not hadrons

Absorbers have been used to study how photons behave when they go through aerogel absorbers. The test was done using mirrors to study the depletion of photons as they went through the absorbers multiple times. This was done by comparing how many times a mirror was hit when there were no absorbers to how many hits there were when there were absorbers.