Make New Entry, Make Followup Entry
User name V. Sulkosky
Log entry time 19:23:31 on October 27, 2008
Entry number 244995
Followups:
- 244996 10/27/08 19:25 V. Sulkosky Re: Raster Settings
- 245204 10/28/08 21:35 R. Michaels re: offset/attenuator
After consulting with Bryan, I adjusted the attenuator settings for the
raster x and y currents. Bryan was concerned that we might saturate if
we decide to use a larger raster size. Hence I adjusted the attenuator
settings until the signal after the module was about -10 mV.
I looked at run 2287 and saw that we were clipping the raster signal at
zero. So I decided to restore the settings to -37 mV. We need to
balance the raster size against being too low (no ADC reading) and too high
(saturation). I figured that -37 mV was a fair balance that would
give us a little room at lower values just in case we end up with a
larger raster than 4 mm x 4 mm (in MCC units).
A copy of this log entry has been emailed to: moffit,brads,rom,jiang
Figure 1
Figure 2
