3 ms·

Couldn't this possibility be eliminated by calibration?

• ithkuil 15y ago
  e.g. having a source of neutrinos 1 km away from the receiver, and see if they still detect it 60 ms "before" (perhaps even before they fired them) Is the cost/technology for doing this kind of quick check prohibitive? I was wondering if the neutrino detector does have to be directed precisely towards cern or it's omnidirectional. Does anyone know?
  • ars 15y ago
    A neutrino detector is omnidirectional. It would be almost impossible to make it directional even if you wanted to. You can try to measure which direction the scattered particles from a neutrino collision travel. But the actual detector is omnidirectional. But all that said, a strong neutrino source isn't easy to just do.
    • ithkuil 15y ago
      assuming the emission is also omnidirectional the required strength decreases by square of distance, so it shouldn't require a strong source for 1km. I guess it's more difficult to tell exactly when the bursts are being emitted.
      • ars 15y ago
        No, the emission is directional.