Difference between revisions of "CDC tilted detectors"
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Revision as of 15:59, 21 December 2012
Prototype at 2100V, 50/50 Ar/CO2
The paler lines are fits to a Landau dist, the darker lines are fits to a Landau-Gaussian convolution.
Ratio of MPVs of Landau fit to integration histograms... horizontal : 30deg : 45deg is 5110 : 6620 : 7160 or 1 : 1.29 : 1.40 Ideally this should be 1 : 1.15 : 1.41
Horizontal MPV | 30 degrees MPV | 45 degrees MPV | 30 degrees:horizontal | 45 degrees:horizontal | |||||
---|---|---|---|---|---|---|---|---|---|
Landau | Landau-Gauss | Landau | Landau-Gauss | Landau | Landau-Gauss | Landau | Landau-Gauss | Landau | Landau-Gauss |
218 | 229 | 256 | 264 | 264 | 285 | 1.17 | 1.15 | 1.21 | 1.24 |
Horizontal MPV | 30 degrees MPV | 45 degrees MPV | 30 degrees:horizontal | 45 degrees:horizontal | |||||
---|---|---|---|---|---|---|---|---|---|
Landau | Landau-Gauss | Landau | Landau-Gauss | Landau | Landau-Gauss | Landau | Landau-Gauss | Landau | Landau-Gauss |
5167 | 5301 | 6722 | 7446 | 7163 | 8113 | 1.30 | 1.40 | 1.39 | 1.53 |
50/50 premix gas, unfiltered, label reads analysis 49.1 CO2, so this is 51/49 Ar/CO2
2100V with prototype horizontal, scintillators vertical
Estimated max drift time is 650ns
Repeating the tilted measurements just in case the scintillators moved slightly between measurements
File:Run 31989 ampfitz.png zoomed |
File:Run 31989 integfitz.png zoomed |
File:Run 31986 integfitz.png zoomed |
File:Run 31984 integfitz.png zoomed |
The paler lines are fits to a Landau dist, the darker lines are fits to a Landau-Gaussian convolution.
Horizontal MPV | 30 degrees MPV | 45 degrees MPV | 30 degrees:horizontal | 45 degrees:horizontal | |||||
---|---|---|---|---|---|---|---|---|---|
Landau | Landau-Gauss | Landau | Landau-Gauss | Landau | Landau-Gauss | Landau | Landau-Gauss | Landau | Landau-Gauss |
383 | 403 | 394 | 419 | 378 | 413 | 1.03 | 1.04 | 0.99 | 1.02 |
Horizontal MPV | 30 degrees MPV | 45 degrees MPV | 30 degrees:horizontal | 45 degrees:horizontal | |||||
---|---|---|---|---|---|---|---|---|---|
Landau | Landau-Gauss | Landau | Landau-Gauss | Landau | Landau-Gauss | Landau | Landau-Gauss | Landau | Landau-Gauss |
8038 | 7994 | 9049 | 10413 | 9291 | 10591 | 1.13 | 1.30 | 1.16 | 1.32 |