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Purdue CMS FPix Database
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Bare Module Plot for M-H-1-03 #108

Closed NickHinton closed 8 years ago

NickHinton commented 8 years ago

I just uploaded the bare module IV for M-H-1-03, but the displayed data doesn't make sense. What's going on?

NickHinton commented 8 years ago

Module M-H-1-06 has the same problem.

Both are TT sensors....a clue?

khan62 commented 8 years ago

I think I found the issue.

In the Bare Module IV scan for M-H-1-03, at 120V the total current is 0. That can't be displayed on a log scale, so the graph bugged out. Is this something we expect to happen often enough to set a check for values equal to 0?

NickHinton commented 8 years ago

No, it isn't something we expect often. We're currently plotting the 'total' current for the bare module IV, but we also have 'active' and 'guard' currents. We would like to plot 'active' + 'guard' instead of total.

BUT, Nebraska will only have 'total' currents. So we want to plot those, only if there are no 'active' and 'guard' currents.

Does that change request make sense? I mentioned it to Greg, but never put it in an Issue.

NickHinton commented 8 years ago

Also the change in the values we plot would be only for the bare module IV, not for on-wafer or assembled modules.

khan62 commented 8 years ago

All of the xmlgrapher files now substitute 1E-10 for zero values that would otherwise break the log scale. Also, for the bare module IVs they first check if ACTV_CURRENT_AMP and GRD_CURRENT_AMP exist, and if either does not, it uses TOT_CURRENT_AMP instead.