Difference between revisions of "ADC data"
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*# <math>E_{R} = \epsilon_{R}E_{0}e^{\frac{-(L+x)}{d}} </math> | *# <math>E_{R} = \epsilon_{R}E_{0}e^{\frac{-(L+x)}{d}} </math> | ||
*# <math>x = ln( \frac{E_{L}}{E_{R}} \frac{\epsilon_{R}}{\epsilon_{L}})\frac{d}{2} </math> | *# <math>x = ln( \frac{E_{L}}{E_{R}} \frac{\epsilon_{R}}{\epsilon_{L}})\frac{d}{2} </math> | ||
+ | |||
+ | Now we can plot the x information from the TDC against the x information from the ADC: | ||
+ | *# [[File:paddle33_xTvsxE.gif|400px|tumb||walk correction fit]] |
Revision as of 17:40, 18 May 2015
ADC data
Given that the center of the paddle is x=0 and +x is to the left and -x is to the right we have the following quantities.
- From TDC: with L the length of the paddle, the time of flight of the particle, the effective speed of light in the paddle is the internal delay including all cables, PMT transit times ect. and same for
- From ADC: with the original energy deposition, d the attenuation length and the light transmission through all couplings including the gain of the PMT and attenuation in the cables. L and R refer to left and right.
Now we can plot the x information from the TDC against the x information from the ADC: