ProtoDUNE TPC data: TPC coherent noise ProtoDUNE data David Adams - PowerPoint PPT Presentation

ProtoDUNE TPC data: TPC coherent noise ProtoDUNE data David Adams BNL July 24, 2019 Updated 11:10 EDT

History I have been studying TPC pedestals and noise Current reco Pedestal evaluated for each events using pedestal fitter • Removes sticky code and fits Gaussian for each channel o – Mean is the pedestal; sigma is the noise Followed by SC mitigation, tail removal, correlated noise removal • Natural to look at noise in two time domains Fast noise: T < 3 ms • RMS of ADC minus pedestal or sigma of pedestal fit o Studied here o Slow noise: T > 3 ms • RMS of pedestal – mean over 1000 events o Shown in earlier talk o Time evolution Many runs shown in previous talks • Have settled as run 5726 as “typical” for beam period • This is a cosmic run. Better for studying noise. o D. Adams, BNL ProtoDUNE sim/reco TPC coherent noise July 24, 2019 2

Fast noise options Some options for evaluation fast noise (plots shown for all) Sigma of pedestal fit (shown in previous talk) • RMS of ADC – pedestal • o Large due to signal (cosmics, …), sticky codes (SC), tails from AC coupling RMS in not-signal regions • o Run signal finder and evaluate RMS using non-signal samples o Finder: threshold 30 ADC counts plus window (-10, 20) samples SC mitigated: run SC mitigation before signal finding • Tail removed: also run exponential tail removal before signal finding • After correlated noise removal (new!) • o Using both new and old signal finders Here we look at two not-signal RMS options Tail removal (including SC mitigation) • After correlated noise removal with internal signal finding (IROI) • D. Adams, BNL ProtoDUNE sim/reco TPC coherent noise July 24, 2019 3

Coherent noise Evaluate coherent noise with contiguous samples Start sum over samples until 50 are found and add entry • If signal is encountered, restart sum • D. Adams, BNL ProtoDUNE sim/reco TPC coherent noise July 24, 2019 4

New RMS calculation Previous RMS was an average of RMS over events Now averaging squares for each event So result is the same as calculating RMS over all samples in all events • Effect is to (properly) give higher weight to large fluctuations • Following plots compare old and new • D. Adams, BNL ProtoDUNE sim/reco TPC coherent noise July 24, 2019 5

Noise plots for run 5726 D. Adams, BNL ProtoDUNE sim/reco TPC coherent noise July 24, 2019 6

APA 1 D. Adams, BNL ProtoDUNE sim/reco TPC coherent noise July 24, 2019 7

Tail corrected RMS old D. Adams, BNL ProtoDUNE sim/reco TPC coherent noise July 24, 2019 8

Tail corrected RMS new D. Adams, BNL ProtoDUNE sim/reco TPC coherent noise July 24, 2019 9

Tail corrected 50-sample RMS D. Adams, BNL ProtoDUNE sim/reco TPC coherent noise July 24, 2019 10

IROI noise-removed RMS old D. Adams, BNL ProtoDUNE sim/reco TPC coherent noise July 24, 2019 11

IROI noise-removed RMS new D. Adams, BNL ProtoDUNE sim/reco TPC coherent noise July 24, 2019 12

IROI noise-removed 50-sample RMS D. Adams, BNL ProtoDUNE sim/reco TPC coherent noise July 24, 2019 13

APA 2 D. Adams, BNL ProtoDUNE sim/reco TPC coherent noise July 24, 2019 14

Tail corrected RMS old D. Adams, BNL ProtoDUNE sim/reco TPC coherent noise July 24, 2019 15

Tail corrected RMS new D. Adams, BNL ProtoDUNE sim/reco TPC coherent noise July 24, 2019 16

Tail corrected 50-sample RMS D. Adams, BNL ProtoDUNE sim/reco TPC coherent noise July 24, 2019 17

IROI noise-removed RMS old D. Adams, BNL ProtoDUNE sim/reco TPC coherent noise July 24, 2019 18

IROI noise-removed RMS new D. Adams, BNL ProtoDUNE sim/reco TPC coherent noise July 24, 2019 19

IROI noise-removed 50-sample RMS D. Adams, BNL ProtoDUNE sim/reco TPC coherent noise July 24, 2019 20

APA 3 D. Adams, BNL ProtoDUNE sim/reco TPC coherent noise July 24, 2019 21

Tail corrected RMS old D. Adams, BNL ProtoDUNE sim/reco TPC coherent noise July 24, 2019 22

Tail corrected RMS new D. Adams, BNL ProtoDUNE sim/reco TPC coherent noise July 24, 2019 23

Tail corrected 50-sample RMS D. Adams, BNL ProtoDUNE sim/reco TPC coherent noise July 24, 2019 24

IROI noise-removed RMS old D. Adams, BNL ProtoDUNE sim/reco TPC coherent noise July 24, 2019 25

IROI noise-removed RMS old D. Adams, BNL ProtoDUNE sim/reco TPC coherent noise July 24, 2019 26

IROI noise-removed 50-sample RMS D. Adams, BNL ProtoDUNE sim/reco TPC coherent noise July 24, 2019 27

APA 4 D. Adams, BNL ProtoDUNE sim/reco TPC coherent noise July 24, 2019 28

Tail corrected RMS old D. Adams, BNL ProtoDUNE sim/reco TPC coherent noise July 24, 2019 29

Tail corrected RMS new D. Adams, BNL ProtoDUNE sim/reco TPC coherent noise July 24, 2019 30

Tail corrected 50-sample RMS D. Adams, BNL ProtoDUNE sim/reco TPC coherent noise July 24, 2019 31

IROI noise-removed RMS old D. Adams, BNL ProtoDUNE sim/reco TPC coherent noise July 24, 2019 32

IROI noise-removed RMS new D. Adams, BNL ProtoDUNE sim/reco TPC coherent noise July 24, 2019 33

IROI noise-removed 50-sample RMS D. Adams, BNL ProtoDUNE sim/reco TPC coherent noise July 24, 2019 34

APA 5 D. Adams, BNL ProtoDUNE sim/reco TPC coherent noise July 24, 2019 35

Tail corrected RMS old D. Adams, BNL ProtoDUNE sim/reco TPC coherent noise July 24, 2019 36

Tail corrected RMS new D. Adams, BNL ProtoDUNE sim/reco TPC coherent noise July 24, 2019 37

Tail corrected 50-sample RMS D. Adams, BNL ProtoDUNE sim/reco TPC coherent noise July 24, 2019 38

IROI noise-removed RMS old D. Adams, BNL ProtoDUNE sim/reco TPC coherent noise July 24, 2019 39

IROI noise-removed RMS new D. Adams, BNL ProtoDUNE sim/reco TPC coherent noise July 24, 2019 40

IROI noise-removed 50-sample RMS D. Adams, BNL ProtoDUNE sim/reco TPC coherent noise July 24, 2019 41

APA 6 D. Adams, BNL ProtoDUNE sim/reco TPC coherent noise July 24, 2019 42

Tail corrected RMS old D. Adams, BNL ProtoDUNE sim/reco TPC coherent noise July 24, 2019 43

Tail corrected RMS new D. Adams, BNL ProtoDUNE sim/reco TPC coherent noise July 24, 2019 44

Tail corrected 50-sample RMS D. Adams, BNL ProtoDUNE sim/reco TPC coherent noise July 24, 2019 45

IROI noise-removed RMS old D. Adams, BNL ProtoDUNE sim/reco TPC coherent noise July 24, 2019 46

IROI noise-removed RMS new D. Adams, BNL ProtoDUNE sim/reco TPC coherent noise July 24, 2019 47

IROI noise-removed 50-sample RMS D. Adams, BNL ProtoDUNE sim/reco TPC coherent noise July 24, 2019 48