This is an old revision of the document!


Table of Contents

Severity

We cannot afford losing any triggered data. For absolute x-section measurement GRETINA efficiency is crucial.

Problem

For S800-GRETINA data with GRETINA self-trigger only we find S800 events in Global.dat without corresponding GRETINA event.

Size of problem (from Scott's email)
In a low rate file, the following event counts were found:

     11,886 coincident events (s800 and gretina present with correlated timestamp)
     719    s800 only events
     15     gretina only events (now fixed in S800 daq)

Progress


QR Code
QR Code daq:mode2 (generated for current page)