Make New Entry, Make Followup Entry
User name V. Sulkosky
Log entry time 18:48:55 on November 21, 2008
Entry number 250217
Followups:
- 250218 11/21/08 18:55 V. Sulkosky T0 Determined for Run 3789
- 250614 11/24/08 23:08 Chiranjib VDC TO calibration for the second period of Production
I have done a T0 calibration for the VDC. The timing has remained
stable during this period of running (Nov. 16th to the present). Hence,
this calibration is good for production runs starting from 3528.
I have created a new analyzer database directory: 20081116 and updated the
VDC T0 coefficients in the db_L.vdc.dat database.
Chiranjib will be working on T0 calibration for the second production
period from Nov. 12th to Nov. 13th. Once this coefficients are ready, I
will update the relevant database directory.
Figure 1 shows the VDC corrected times before (red curve) and after (black)
the calibration. As you can see there is a significant shift. Any run
replayed now will use the correct offsets.
A copy of this log entry has been emailed to: jiang,gen,chiran,kalyan,xqian
Figure 1
