1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Photon's recognition

  1. Aug 22, 2003 #1


    User Avatar

    what makes the people at CERN (or similar) certain that what they just saw was a photon?how do i recognise a photon?
  2. jcsd
  3. Aug 22, 2003 #2

    Um, photodetector tubes? They detect light, just like cameras, night-vision goggles, our eyes. But the special tubes they use at accelerators can detect very weak energy photons that most equipment couldn't detect. They do this by using materials to form waveguides and do it complete darkness. Photons hit a substance that causes the photoelectric effect to occur. This voltage is then amplified many times as to be useful for analysis by computers and equipment that monitor the detection.
  4. Aug 22, 2003 #3
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Similar Threads - Photon's recognition Date
I Image formed by photons Tuesday at 1:05 PM
I Photon upconversion and second law of thermodynamics Feb 18, 2018
B Composition of Light Feb 14, 2018
B Parallel photons Feb 4, 2018
Sound Waves and Voice Recognition Oct 20, 2009