SoLID DAQ » SoLID ECal

h1. Pedestal shift study

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#4023-#4032: 20210120, no beam, HV on, pulse trigger

#4066: 20210124, no beam, HV off, pulse trigger

Name:_SC_D,_SC_A,_SC_B,_X,_LASPD_t,_LASPD_b,_SC_C,_PreSh_L(SDU#1),_PreSh_R(THU#1),_PreSh_T(SDU#2),_Shower_L(SDU#4),_Shower_R(THU#2),_Shower_T(SDU#5),__CerA,__CerB,__CerC, __CerD

HV:___1150,_1550,_1650,_0,_____800,_____900,_1600,___________1470,___________1740,___________1680,____________1030,_____________1030,____________900,___930,___930,___930, ___930

Do the HV scan following this table (note that CerD is connected to HV channel E08C2_ch07):

For Cherenkov: ch13,ch14,ch15, E08C2_ch07: 910, 930,  950,  970

For Shower:                     ch10,ch11: 900, 950, 1000, 1050

For Shower:                          ch12: 800, 850,  900,  950

|run\HV channel| ch10|ch11|ch12|ch13|ch14|ch15|E08C2_ch07|

|4023-4024|   800| 900| 900| 910| 910| 910| 910|

|4025-4026|   950| 950| 850| 930| 930| 930| 930|

|4027-4028|  1000|1000| 900| 950| 950| 950| 950|

|4029-4030|  1050|1050| 950| 970| 970| 970| 970|

|4031-4032|  1030|1030| 900| 950| 950| 950| 950|

|4066|      0|   0|   0|   0|   0|   0|   0|

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20210120

run# ch7.00 ch7.01 ch7.02 ch7.03 ch7.04 ch7.05 ch7.06 ch7.07 ch7.08 ch7.09 ch7.10 ch7.11 ch7.12 ch7.13 ch7.14 ch7.15 ch8.00 ch8.01 ch8.02 ch8.03 ch8.04 ch8.05 ch8.06 ch8.07 ch8.08 ch8.09 ch8.10 ch8.11 ch8.12 ch8.13 ch8.14 ch8.15

4023  106.7  103.6   99.1  101.4  101.3   98.5  103.4   94.9  108.9  102.6  107.2  110.4  105.0  101.6  103.5   99.3  115.3  110.3  123.0  115.8  104.9  104.7  108.4  107.0  107.0  102.1  104.4  100.6  104.9  107.4  113.2  103.1

4024  106.8  103.7   99.2  101.4  101.2   98.5  103.6   95.0  108.9  102.7  107.2  110.6  105.2  101.6  103.5   99.5  115.2  110.5  122.9  115.5  105.0  105.0  108.6  107.2  107.0  102.1  104.3  100.7  105.1  107.6  113.2  103.1

4025  106.6  103.6   99.3  101.5  101.3   98.6  103.5   94.8  109.0  102.6  107.4  110.5  105.3  101.6  103.6   99.5  115.0  110.6  122.9  117.2  105.1  105.0  108.4  107.0  107.0  102.1  104.4  100.7  104.9  107.4  113.3  103.2

4026  106.6  103.6   99.2  101.5  101.3   98.6  103.4   95.0  109.0  102.6  107.3  110.4  105.2  101.5  103.5   99.5  115.1  110.4  122.9  117.4  105.1  104.8  108.4  107.0  106.9  102.1  104.4  100.7  104.9  107.5  113.4  103.1

4027  106.5  103.4   99.1  101.3  101.2   98.5  103.3   94.9  108.8  102.5  107.3  110.6  105.3  101.5  103.5   99.5  115.2  110.4  122.9  117.3  105.0  104.7  108.5  106.9  106.9  102.0  104.3  100.5  105.2  107.4  113.4  103.1

4028  106.5  103.5   99.3  101.5  101.2   98.5  103.4   94.9  108.8  102.4  107.3  110.5  105.3  101.5  103.4   99.4  115.1  110.4  122.8  117.4  105.0  105.0  108.4  106.9  106.9  102.0  104.4  100.8  105.1  107.4  113.3  103.2

4029  106.5  103.7   99.1  101.5  101.3   98.5  103.5   95.0  108.9  102.4  107.4  110.5  105.3  101.7  103.5   99.6  115.2  110.5  122.8  117.3  105.0  105.0  108.5  106.9  106.9  102.1  104.4  100.7  105.0  107.4  113.2  103.0

4030  106.5  103.7   99.2  101.6  101.2   98.5  103.5   95.0  108.9  102.5  107.3  110.7  105.2  101.6  103.4   99.6  115.0  110.5  122.6  117.5  105.1  105.0  108.5  106.9  107.0  102.0  104.3  100.7  104.9  107.4  113.2  103.3

4031  106.8  103.9   99.4  101.7  101.1   98.6  103.9   94.9  109.2  102.6  107.4  110.3  105.4  101.7  103.4   99.4  115.4  110.6  122.7  118.5  105.1  105.0  108.5  107.2  106.9  102.1  104.3  100.8  105.0  107.5  113.4  103.2

4032  106.7  104.0   99.3  101.7  101.3   98.7  103.8   95.1  109.3  102.7  107.5  110.6  105.4  101.8  103.5   99.4  115.1  110.7  122.8  118.7  105.1  105.0  108.5  107.2  107.0  102.1  104.4  100.7  104.9  107.7  113.3  103.3

20210124

run# ch7.00 ch7.01 ch7.02 ch7.03 ch7.04 ch7.05 ch7.06 ch7.07 ch7.08 ch7.09 ch7.10 ch7.11 ch7.12 ch7.13 ch7.14 ch7.15 ch8.00 ch8.01 ch8.02 ch8.03 ch8.04 ch8.05 ch8.06 ch8.07 ch8.08 ch8.09 ch8.10 ch8.11 ch8.12 ch8.13 ch8.14 ch8.15

4066  106.4  103.8   99.8  101.6  101.7   98.6  103.6   95.8  109.5  103.3  107.6  110.5  105.4  102.0  103.9   99.5  117.3  109.4  123.3  124.4  104.9  105.0  108.8  107.0  107.3  101.6  104.8  101.2  105.4  108.0  115.1  103.2

Summary:

Within a short time (several days), pedestals are stable and do not show dependence on HVs.

The largest change in pedestal happended to CerSum (ch8.03), which is 8.9 adc unit between HV off and HV on.

However, this change is still within 3 sigma.

The 2nd large change in pedestal happened to SC_D (ch8.00), which is 2.3 adc unit between HV off and HV on.