[ntp:questions] Accuracy of NTP - Advice Needed

John Hasler jhasler at newsguy.com
Sat Dec 24 16:50:21 UTC 2011

I wrote:
> An upcoming experiment at Fermilab will observe neutrinos at both ends
> (the far end will be in Minnesota).

unruh writes:
> Well, no. At best the electrons or muons at one end.

At best the electrical pulse produced by a photomultiplier when struck
by a photon generated when a muon or electron emitted as a result of a
neutrino collision interacts with the detector medium (there are a
variety of detector designs but photomultipliers are almost always

However, the use of similar or identical neutrino detectors at both ends
means that systemic errors in delay estimation will tend to cancel.  I
assume that they will try to match up the timing equipment at both ends
as well.

John Hasler 
jhasler at newsguy.com
Dancing Horse Hill
Elmwood, WI USA

More information about the questions mailing list