I've discovered a mistake that resulted in
attenuation lengths for Sectors 5 and 6 being
swapped in ECCL.bfp. Some of you may recall that
Sectors 5 and 6 were assembled and tested as Sectors
1 and 2 respectively. For various reasons, however,
Sector 2 scintillators were installed into Sector 1 module,
and vice-versa. I had neglected to account for this in my
sector number mapping when creating ECCL.bfp.
So as of 21:30 10-Apr I've updated the ECCL.bfp in $CLAS_PARMS.
This does not affect the adc gains in ECCA.bfp. However,
the scintillators in Sector 6 have lower than average
attenuation lengths so the corrected EC energy, using this
new ECCL.bfp file, should be somewhat higher than before (but
presumably more correct).
Cole Smith
cole@apollo.phys.virginia.edu