User name Lingyan
Log entry time 21:30:20 on February13,2001
Entry number 56238
This entry is a followup to: 55424
keyword=left-scintillator calibrationI calibrated the left-arm scintillators, by typing in the pedestal position and setting the gain to be one. Then we got adc spectra a little different from before.
The input for left arm S1 and S2 is:
---
> 2.80E+02 1.000000 2.95E+02 1.000000 2.71E+02 1.000000 2.48E+02
> 1.000000 3.43E+02 1.000000 4.22E+02 1.000000
> 3.08E+02 1.000000 3.11E+02 1.000000 2.32E+02 1.000000 2.80E+02
> 1.000000 3.91E+02 1.000000 3.11E+02 1.000000
---
> 3.45E+02 1.000000 4.23E+02 1.000000 2.77E+02 1.000000 2.79E+02
> 1.000000 2.63E+02 1.000000 2.47E+02 1.000000
> 3.72E+02 1.000000 3.43E+02 1.000000 3.590E+02 1.000000 3.11E+02
> 1.000000 3.27E+02 1.000000 2.63E+02 1.000000
While the original parameters in database were:
< 3.34E+02 0.880000 3.72E+02 0.890000 4.22E+02 1.050000 4.22E+02
< 0.910000 4.22E+02 1.060000 5.63E+02 1.140000
< 3.87E+02 0.910000 4.58E+02 0.950000 4.22E+02 0.940000 3.70E+02
< 0.990000 6.16E+02 1.050000 3.70E+02 1.110000
----------
< 4.75E+02 0.930000 5.98E+02 0.790000 3.00E+02 1.200000 4.22E+02
< 1.010000 2.46E+02 0.790000 4.40E+02 0.870000
< 4.22E+02 1.180000 5.28E+02 0.880000 4.40E+02 0.960000 4.58E+02
< 0.830000 4.40E+02 0.980000 7.40E+02 1.140000
The old database is renamed as db_e94104_save_s.
For run 1913, we have:
As you may notice that s1_1_r has very small amplification. That is because I set the HV only 2000 instead of 2220 because of noisy rate. Bogdan is going to replace it.
FIGURE 1
FIGURE 2
