Pedestal shift study » History » Revision 5
Revision 4 (Jixie Zhang, 01/23/2023 12:58 PM) → Revision 5/12 (Jixie Zhang, 01/23/2023 01:03 PM)
h1. Pedestal shift study ======================================================================== #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 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 HV:___1150,_1550,_1650,_0,_____800,_____900,_1600,___________1470,___________1740,___________1680,____________1030,_____________1030,____________900,___930,___930,___930, ___930 HV:___1150,_1550,_1650,_0,_____800,_____900,_1600,___________1470,___________1740,___________1680,____________1030,_____________1030,____________900,___930,___930,___930 Do the HV scan following this table (note that CerD is connected to HV channel E08C2_ch07): table: 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\channel ch 10 11 12 13 14 15 07 4023, 4024: HV(ch10-15,E08C2_ch07) : 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 ======================================================================== 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.