where offset, offset dispersion, and noise were determined on a chip by chip basis. The plot clearly shows an anti-correlation between the occupancy and the chip offset. This suggests that the chip offsets, determined from three threshold scans at different charge injection values, are not the real offsets for the chips. The real chip-to-chip offsets probably have a much smaller spread than what is found from the linearity fits.
- A postscript version of the plot above.
- This table gives the thresholds used for the data above.
- The Commissioning Module web page.
- The occupancy data for run 004.
- The linearity fits used to determine the individual chip offsets.
owen@electron.physics.ucsb.edu