ProtoDUNE-DP Light Data Clara Cuesta on behalf of the CIEMAT team October, 31 st 2019
Photon Detection System (PDS) ProtoDUNE-DP 36 8” cryogenic photomultipliers ( PMTs ) PDS placed below JINST 13 (2018) T10006 the ground grid Wavelength-shifter : ground grid PEN / TPB coating on PMT fiber for light calibration Voltage divider base + Wavelength-shifter single HV-signal cable + splitter (external) PMT Light calibration system : LED (external) & fiber based Voltage divider base + JINST 14 (2019) T04001 single HV-signal cable DAQ system (external) 2 Clara Cuesta | ProtoDUNE Dual Phase Light Data
Light DAQ CIEMAT acquisition control software Calibration box HV Power supply ADC CAEN v1740 MIDAS 3 Clara Cuesta | ProtoDUNE Dual Phase Light Data
Light DAQ CIEMAT acquisition control software Calibration box HV Power supply ADC CAEN v1740 MIDAS CAEN V1740 main specifications: • 64 channels with 12 bits and 2Vpp dynamic range. • Configurable sampling period between 16 ns and 2048 ns. • Capable of producing a trigger signal based on the coincidence of a programmable number of PMT signals over a given threshold level (all parameters on-line programmable). • Connected to the computer by a 80 MB/s optical link (CAEN CONET2). 4 Clara Cuesta | ProtoDUNE Dual Phase Light Data
PDS Layout S.17 S.28 17 0 FA0147 16 40 S: splitter C.21 C.38 S.18 LEGEND C: PMT cable BC.38 BC.13 C.3 S.16 S.23 FA0113 FA0136 BC: base cable Y Y F .5 FA0146 BC.11 F .2 C.1 C.28 F: 22.5m-fiber BF .5.3 5FA0139 F .5 BF .2.6 BC.40 BC.29 2 BF: bundle-fiber BF .5.7 F .5 F .2 FA0107 FA0150 Colored: TPB BF .5.6 BF .2.7 ADC S.22 30x PEN 1 8 32 FA0156 41 FA0121 ch# C.20 S.19 S.15 BC.34 FA0115 C.34 C.33 S.11 S.35 F .2 sheet PMTs BC.22 BC.23 C.7 C.25 BF .2.4 F .2 F .5 BC.2 BC.35 CRP CRP BF .2.5 FA0119 BF .5.5 F .5 F .2 S.10 S.24 #2 #1 BF .5.2 BF .2.2 C.14 2 FA0106 18 19 FA0133 42 C.2 FA0111 S.7 BC.36 S.3 S.31 BC.17 S.30 C.24 F .5 S.8 C.17 S.25 C.30 F .2 C.36 BC.16 BF .5.4 C.11 BC.5 C.15 BC.14 BF .2.3 BC.14 F .6 BC.6 F .6 BC.12 F .4 F .4 BF .6.7 F .6 BF .6.2 FA0132 F .4 BF .1.5 FA0148 FA0151 5 trigger S.9 BF .1.4 6x TPB FA0139 S.26 BF .6.5 BF .1.7 C.4 C.26 44 3 4 6 9 20 21 33 43 4.1 BC.20 BC.28 groups coated PMTs F .6 F .4 #1 FA0107 FA0137 FA0114 FA0110 S.27 S.6 X X BF .6.1 BF .1.1 C.16 C.6 BC.32 BC.41 (next slide) FA0135 FA0124 FA0134 F .4 F .6 FA0153 BF .1.6 BF .6.6 5 10 34 45 23 22 PMT serial# S.5 FA0130 FA0104 S.12 S.33 S.32 C.18 C.22 C.12 C.9 BC.33 BC.27 BC.7 BC.25 ADC FC0005 F .6 FA0155 FA0129 FA0112 F .6 F .4 F .4 Door BF .6.4 BF .6.3 BF .1.2 6 11 35 46 BF .1.3 ch# #1 S.34 fiber S.2 S.21 S.1 fiber C.29 7 C.32 3 C.10 #0 C.27 BC.15 #1 BC.10 BC.31 BC.24 #1 FA0157 FC0004 F .3 S.14 F .7 S.36 F .3 F .7 BF .3.7 C.31 BF .7.2 C.19 BF .3.4 7 BF .7.4 12 36 47 BC.26 BC.1 FA0149 F .7 F .3 FA0116 S.29 S.4 BF .7.5 BF .3.5 C.37 C.5 4 PMTs connected BC.30 BC.39 S.13 S.20 FA0122 FA0105 F .3 *fibers: 2&3&4 F .7 C.8 *fibers: 5&6&7 C.13 BF .3.3 North to scope, now: BF .7.3 BC.37 13 37 BC.21 F .7 F .3 BF .7.6 BF .3.6 ADC 2, 18, 17, 41 *cables: 1,3,4,5,6,7,8,11,14,17,18,21,22,24,27,31,32,33; 35:spare *cables: 2,9,10,12,13,15,16,19,20,25,26,28,29,30,34,36,37,38; 23:spare 5 Clara Cuesta | ProtoDUNE Dual Phase Light Data
PDS trigger 15 0 FA0147 14 28 LEGEND FA0136 FA0113 FA0146 Y Y FA0150 ADC 22 FA0156 29 1 FA0121 8 ch# FA0115 CRP CRP FA0119 #2 #1 2 FA0106 16 17 FA0133 30 FA0111 FA0148 FA0132 FA0151 FA0139 19 32 3 4 9 18 23 31 FA0137 FA0114 FA0110 FA0107 X X FA0135 FA0124 FA0134 FA0153 5 10 24 33 5 trigger 20 21 FA0130 FA0104 groups FC0005 FA0155 FA0129 FA0112 Door 6 11 25 34 fiber fiber (preliminary) #0 #1 FA0157 FC0004 7 12 26 36 FA0149 FA0116 FA0122 FA0105 North 13 27 6 Clara Cuesta | ProtoDUNE Dual Phase Light Data
Data taken A lot of interesting light data already taken: GAr (runs @ RT) - LAr w/o fields (S1) - LAr w/ fields (S1 + S2) - Runs w/ PMT & random triggers - Runs triggering w/ external panels - PMT calibration runs - Jun 24 GAr purging Jul 5 Jul 8 PMTs covered by LAr LAr filling Nominal LAr level reached Aug 9 Aug 11 Drift field on Aug 29 LEMs on 7 Clara Cuesta | ProtoDUNE Dual Phase Light Data
Data location • Data are taken in the Light DAQ computer as a midas file (mid), then converted to root, and sent to the long-term eos location every day. • All data is long-term saved in: /eos/experiment/neutplatform/protodune/rawdata/np02/PMT • Raw data as taken from Midas are saved in: /eos/experiment/neutplatform/protodune/rawdata/np02/PMT/midas • ROOT data converted after using midas2root are saved in /eos/experiment/neutplatform/protodune/rawdata/np02/PMT/ROOT • Data are also copied to CASTOR: - A script runs every night to create the json files needed to send the data to CASTOR. - They are uploaded in batches using the dropbox folder in EOS. 8 Clara Cuesta | ProtoDUNE Dual Phase Light Data
Run information • Data taken are described in the elog https://pddpelog.web.cern.ch/elisa/display • Google spreadsheet “Light runs” summarizing run information: https://docs.google.com/spreadsheets/d/1xnHmHhAyuBEnDiwCGrf7 u8CXxpMyOMKAB1AnoZpLIaA/edit#gid=1315921346 Run number, date, run goal, trigger, field conditions, Elog#... • Contact me (clara.cuesta@ciemat.es) in case of questions. 9 Clara Cuesta | ProtoDUNE Dual Phase Light Data
Data analysis organization • Using our own code to extract information (charge, amplitude, scintillation profile, baseline, peak time…) • Aiming to include light data in LArSoft matched with the charge data. • ProtoDUNE-DP PDS geometry in LArSoft. • Ana Gallego-Ros , José Soto-Otón, María Artero (MSc), Diana Navas, and Clara Cuesta from CIEMAT are working on the light data analysis. • Contact us (clara.cuesta@ciemat.es) if you are willing to join! 10 Clara Cuesta | ProtoDUNE Dual Phase Light Data
On-going analysis topics • Gain ✔ G vs HV, gain stability, top fibers ✔ PEN/TPB light reduction factor • Noise and system limitations ✔ Electronics (pick-up) noise ✔ System limitations - Dark rate - Single photo-electron characterization • S1 study ✔ Purity ( ! slow evolution) ✔ Cosmic muons from external panels - S1 (shape and rate) vs detector conditions • S2 study - S2 characterization (shape and rate) vs detector conditions 11 Clara Cuesta | ProtoDUNE Dual Phase Light Data
First results TPB PMT PEN PMT • All 36 PMTs operational • Low noise < 1 ADC • PMTs are stable • PEs with panels Expected purity evolution • PEN PMT 12% TPB PMT amplitude • Light track observed with panels • Electroluminescence light seen by all PMTs (>6 m away from PMTs) Preliminary 12 Clara Cuesta | ProtoDUNE Dual Phase Light Data
Summary Data taking in PDS Data taking in GAr and LAr installation LAr w field w/o field Completed August 2019 June-July 2019 a t a D s i s y l a n a d e t r a t s t s u j Clara Cuesta | ProtoDUNE Dual Phase Light Data
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