[Halld] GlueX Note on Timing Systems

[Mark Ito]

Colleagues,

We have posted a new GlueX Note to the DocDB: "Synchronization of GlueX 
Timing Systems." Find it at

http://argus.phys.uregina.ca/cgi-bin/public/DocDB/ShowDocument?docid=2686

Here is the abstract:

Techniques for synchronizing time measurements from the various timing
devices used by GlueX are discussed, in particular how synchronization
can be achieved in the absence of an external, global timing
signal. Some of these techniques were necessary during the Fall 2014
run, and all of them are useful as consistency checks on timing system
operation when an external timing reference is used for
synchronization.

   -- Kei and Mark