====== Log book of catania test beam ====== ===== Data Files ===== * Data File names - From run_101009_1.txt to run_101009_10.txt - From run_111009_1.txt to run_111009_10.txt * Configuration files (cabling) - conf_101009.txt the human readable version is in cabling_101009.txt - conf_111009.txt the human readable version is in cabling_111009.txt ===== Beam conditions ===== All runs but the last one * Beam dump rate: from 300 Hz to 1 kHz Only the last run (run_111009_10.txt) * Rate from 2 kHz to 7 kHz The beam was bunched at nearly 20 ns, with spill lenght nearly 1 ns. ===== Acquisition conditions ===== * Acquisition rate: from 180 to 300 Hz. * Amplifier gain: 10 ===== Runs details ===== 65cc min Ar 16cc min CO2 corresponding to 80/20 admixture ^ Run ^ Mixture (cc/min) ^ Comments ^ HV ^ LV ^ N evts ^ |1 |65/30 | scint: 3/4 not connected | 2.0 kV | 1 V | 147 k | |2 | - | all scint connected | - | - | 805 k | |3 | - | all scint connected | 2.2 kV | - | 600 k | |4 | - | all scint connected | 2.1 kV | - | 975 k | |5 | - | No scint | 1.9 kV | - | 1.055 M | |6 | - | all scint conn | 1.8 kV | - | 905 k | |7 | 65/16 | all scint conn | 1.8 kV | - | 870 k | |8 | - | all scint conn | 1.9 kV | - | 550 k | |9 | - | all scint conn | 2.0 kV | - | 1 M | |10 | - | all scint conn | 2.1 kV | - | 840 k | From 101009_* to 111009_* change of cabling/connections. ADC moved from 1st start counter to DUMP and recabled the chamber. 1 chamber channel resurrected.... ^ Run ^ Mixture (cc/min) ^ Comments ^ HV ^ LV ^ N evts ^ |1 | 65/40 | All conn | 2.1 kV | 1.11 V | 660 k | |2 | - | - | 2.2 kV | - | 695 k | |3 | - | 2mm of Al 1.15mm from ST1 | - | - | 3.16 M | |4 | - | All conn (no Al) | 2.3 kV | - | 705 k | |5 | - | - | 2.4 kV | - | 570 k | |6 | 65/50 | - | 2.4 kV | - | 350 k | |7 | - | - | 2.5 kV | - | 275 k | |8 | - | - | 2.3 kV | - | 240 k | |9 | - | - | 2.2 kV | - | 210 k | |10 | - | High rate | 2.3 kV | - | 145 k | Change of LV from 1 V to 1.11 V changes gain from 2*10^6 to 5*10^6 [adb]