Introduction to PMT Check sheet for PMT test date shift 1 PMT cable labeling 2 PMT box labeling 3 PMT glass 4 PMT mounting TABLE #PMT #PMT S.N. cable cable Dark room 6 Dark room CLOSE : 7 Decoulper cable PMTHVSignal AVR ON 9 Extension-110V ON ( ) 10 Extension-220V ON (RACK) 11 C.A.E.N HV Supplier ON ( ) 12 NIM power ON 13 Function gen. power ON 14 Function gen. Freq.=2.0 kHz 15 ON & EXT, WIDE start timing 16 EXT, WIDE freq.=2.0kHz & OFF 17 C.A.E.N key=Local & ID/PASSWD 18 Dark room close 10 19 Company HV : channelPMT #HVONVMON EXT, WIDE cable - MCLK 21 MODE cable -MCLK 22 QBEE LAN 23 DAQ computer LOCAL network 24 TKO power ON 25 MCLK power ON 26 PMT HV ON 10 27 Dark run 28 Pedestal run 29 EXT, WIDE cable - MCLK 30 Laser power & Light ON 31 Light power ADJ. = 53mA 32 Laser run 33 HV ADJ. = Company HV -100 : channelPMT #HVONVMON HV ADJ. 5 35 Laser run 36 HV ADJ. = Company HV +100 : channelPMT #HVONVMON HV ADJ. 5 38 Laser run 39 Laser light OFF 40 HV & HV ADJ. : channelPMT #HVONVMON HV ADJ. 5 42 EXT, WIDE cable - MCLK 43 Pedestal run 44 EXT, WIDE cable - MCLK 45 Laser light ON & Light power ADJ.=53mA 46 SPE run 47 Light power ADJ. = 55mA 48 Laser run 49 Light power ADJ. = 63mA 50 Laser run 51 Light power ADJ. = 73mA 52 Laser run 53 Light power ADJ. = 85mA 54 Laser run 55 Linearity 56 Laser OFF : 57 Laser OFF 5 58 EXT, WIDE cable - MCLK 59 Dark run 60 Funtion gen. OFF 61 NIM power OFF 62 PMT HV OFF & (~0mA) 63 C.A.E.N key=off 64 MCLK power OFF 65 TKO power OFF 66 C.A.E.N HV supplier OFF( ) 67 Extension-220V OFF (RACK) 68 Extension-110V OFF ( ) 69 AVR OFF 70 PMT# 105, 106 PMT . GUI for DAQ and analysis GUI by & Analysis code by Typical plots for PMT test Dark run 1 2kHz 300sec hits hz 3 2kHz 300sec hits hz 5 2kHz 300sec hits hz 13 2kHz 300sec hits hz (1) dark.jpg (2) dark.dat #of PMT hits PMT Spec. Pedestal run (1) ped.jpg (2) ped.dat Line Ch #of event mean(small) rms(small) Laser run (1) timing.jpg (2) hitcount.dat #of Laser injection ~600,000 (1) Red line histogram Dark event peak (2) Red line peak PMT Laser trigger signal Selected PMT signal Red histogram #of hits (a) Red histogram #of dark hits (b) Red histogram #of laser event : (a)-(b) Laser run (3) qdist.jpg (4) q.dat QBEE ch #of event mean(pC) sigma HV (1) fit.jpg (2) fit.dat PMT ch PMT ch PMT ch PMT ch PMT 10^7 gain HV SPE run Q (1) qdist.jpg (2) q.dat QBEE ch #of event mean(pC) sigma HV HV 1.6pC . 1.6pC (+/- ?) . SPE run time resolution I : T (trigger) T (pmt hit) (3) tdiff1.jpg (4) tdiff1.dat QBEE ch mean(count) sigma(count) 1count = 0.52nsec ~ 1.2nsec Correlation between HV & transit time SPE run time resolution II : T (pmt1) T (pmt2) (5) tdiff2.jpg (6) tdiff2.dat QBEE ch mean(count) sigma(count) (1) T(pmt1)-T(pmt2) (2) T(pmt1)-T(pmt3) (3) T(pmt1)-T(pmt4) (4) T(pmt2)-T(pmt3) (5) T(pmt2)-T(pmt4) (6) T(pmt3)-T(pmt4) (1) (2) (3) (4) (5) (6) 1count = 0.52nsec ~ 4count (2.08nsec) TTS value ~ 6count (3.12nsec) Linearity check (1) fit.jpg (2) fit.dat QBEE ch Fit parameter(0)Fit parameter(1) HV HV . Afterpulse -85mA laser events T(count) Q(pC) ~ 13usec Laser events CompanyRENO P/V Dark event ? or gaussian sigma? TTS Time difference ? Dark event -0.63mV Gain10^7gain (1.6pC +/- ?) HVObtained Dark event & SPE event -Only Dark events -SPE level laser events -Pedestal mean