Copmarison of results with Jerome

For side P.	For side N.

first results and method used

This is to describe how I calculate the charge ratio of the pulser.
For each A128 ,we have ,on both sides , 4 strips max of fired.
This example is for the first A128 of wafer 1 of the ladder 1.
The file used is the run pulser 6057008

For side P.	For side N.

As you can see , we don't have exactly 4 strips fired on both sides because of the status of the strip(level of noise ,pedestal)
In order to choose the goods strips which are normaly fired by the pulser ,I look on ADC vs IdStrip to do it
In deed , we know that the pulser amplitude for this run is 100 and it gives ~300 ADC counts

For side P.	For side N.

I loop on the strips who are fired more than 100 times( my Tuple is made with 200 events so 200 times fired is the max ),and then I have this cut on the adc value
Then I fit for each strip the adc Value and take the mean of the fit for all strips in a A128 and obtain the mean adc P value
I do this for all A128 in a wafer (6) and for the N side and then I calculate the ratio

For a wafer.	For a wafer.

A128	mean adc P	mean adc N	ratio
1	310.273	338.552	1.09114
2	310.746	320.809	1.03238
3	293.453	306.4	1.04412
4	313.575	310.809	0.991179
5	288.894	292.263	1.01166
6	298.218	321.308	1.07743

I try with 2 another pulser runs (6057018 and 6057032) and I got for the same wafer :

6057018				6057032
A128	mean adc P	mean adc N	ratio	A128	mean adc P	mean adc N	ratio
1	312.158	314.969	1.009	1	327.104	314.138	0.960
2	313.224	318.780	1.018	2	325.192	328.655	1.011
3	295.646	297.731	1.007	3	297.953	306.205	1.028
4	315.842	306.631	0.971	4	321.102	306.652	0.955
5	291.380	295.471	1.014	5	292.282	296.990	1.016
6	300.514	294.512	0.980	6	288.820	286.928	0.993

for ladder 1 ( to compare with Jerome's plot )

the text File is : run 6057008-for ladder 1

Jonathan BOUCHET

Last modified: Thu Nov 25 10:32:52 CET 2004