Time-of-Flight/Start-Counter Meeting, October 16, 2009

Minutes

   FSU: Sasha Ostrovidov
   JLab:  Eugene  Chudakov,  Mark Ito (chair), Elton Smith, Simon Taylor,
   Tim Whitlatch, Beni Zihlmann

Time-of-Flight Status

   Sasha  reports that he has continued to work with the [14]Phillips 715
   constant  fraction  discriminator.  He  is using a 10 cm cable for the
   delay. Currently he is having problems with cross-talk; signals in one
   channel  produce  signals  in  a  neighboring  channel. This is giving
   spurious  peaks in his timing spectra. These tests have been done with
   a  pulser.  Nonetheless  he  is getting about 150 ps timing resolution
   from the TOF prototype with this discriminator.

   Beni suggested trying a 4 ns delay cable.

Retrieved from
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References

  14. https://halldweb1.jlab.org/talks/2009-10/715ds.pdf