Transcript 110603_Adil_TB_Report

ScECAL Fermilab Beam Test
analysis
ScECAL Group Meeting
Kyungpook National University, Daegu, Republic of Korea,
May 16th , 2011
Adil Khan, Satoru Uozumi, DongHee Kim
 After using Temperature Correction
Factor, the result is improved.
The temperature coefficient is extracted
by using temperature information recorded
during 2009 beam test.
Order of calibration constants are used.
1.Temperature Correction
2.Intercalibration correction
3.Saturation correction
4.MIP calibration

13.69
 2.3% 
%
E
E
BACK UP
Temperature variation Run by run
for 20, 15 &12 Temperature is high
Esum += (slope*Nominal Temp+offset) / (Slope*RunTemp+offset)*En
TNominal = 25C
After using Temperature Correction Factor, the result is improved.
Linearity
ScECAL Lineartiy
Response before
Temprature Correction
ScECAL Lineartiy
Response after
Temprature Correction
Energy Resolution Using Quadratic and linear fit
143 counts/GeV x 20 GeV = 2860
143 counts/GeV x 12 GeV = 1716
143 counts/GeV x 15 GeV= 2145
143 counts/GeV x 8 GeV = 1144
143 counts/GeV x 4 GeV = 572
143 counts/GeV x 2 GeV = 286
10 GeV ?
4300 counts for
30 GeV
143 counts/GeV
13 GeV ?
15 GeV ?
Mean & Sigma Values After Fitting
GeV
2
4
8
12
15
20
30
Mean
258.
534.
1045.
1370.
1769.
2108.
4299
Sigma
34.
49.
85.
70.
85.
113.
176.
Energy Spectrum of 2008 & 2009 data
ScEcal show low response to the
energy points 12, 15, 20 GeV.
Wtihout these three points the the
linearity shows better results.
During Beam test 2009, for 20 GeV the run number 560276
was mention as low response run.
The Red histogram is a distribution of 560276 for 20GeV.
But here it almost give the same peak value as compare to
the normal run numbers as shown in Green histogram.
It means, this is not the reason of low response of ScECAL
summary
-Checked the Calice Elog for every
Energy point run by run for comments
On low calorimeter response.
But
There is not any clear information.
Question : problem with ScEcal Calorimeter ?
or
problem with Beam Momentum