Register to reply

Photon's recognition...

by ddr
Tags: photon, recognition
Share this thread:
ddr
#1
Aug22-03, 06:04 AM
P: n/a
what makes the people at CERN (or similar) certain that what they just saw was a photon?how do i recognise a photon?
Phys.Org News Partner Physics news on Phys.org
Step lightly: All-optical transistor triggered by single photon promises advances in quantum applications
The unifying framework of symmetry reveals properties of a broad range of physical systems
What time is it in the universe?
neutroncount
#2
Aug22-03, 11:58 AM
P: n/a
Originally posted by ddr
what makes the people at CERN (or similar) certain that what they just saw was a photon?how do i recognise a photon?

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.
grady
#3
Aug22-03, 11:14 PM
grady's Avatar
P: 69
http://usa.hamamatsu.com/hcpdf/catsa...nstruction.pdf


Register to reply

Related Discussions
Object Recognition Programming & Computer Science 10
Integration by recognition Calculus 10
Curve recognition? Computing & Technology 4
Visual recognition Medical Sciences 2
Speach Recognition Computing & Technology 3