Noise model simulation for the DUNE FD DAQ Miquel Nebot, Babak Abi, - - PowerPoint PPT Presentation

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Noise model simulation for the DUNE FD DAQ Miquel Nebot, Babak Abi, - - PowerPoint PPT Presentation

Feb 17, 2024 105 likes •311 views

Noise model simulation for the DUNE FD DAQ Miquel Nebot, Babak Abi, Justo Martin-Albo 1 Noise modeling: motivation Started some time ago https://indico.fnal.gov/event/15612/contribution/2/material/slides/0.pdf Is one of the high

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Noise model simulation for the DUNE FD DAQ

Miquel Nebot, Babak Abi, Justo Martin-Albo

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  • Started some time ago 


https://indico.fnal.gov/event/15612/contribution/2/material/slides/0.pdf

  • Is one of the high priority R&D tasks in the Data selection list :


Trigger Development and Testing


  • C. Adding primitive generation in simulation 


”Clean” MC waveforms + offline noise models

  • Noise model :


The physics performance will depend strongly on the noise level 
 Need a tuneable noise model 
 Define configurations: MicroBooNE-like, ProtoDUNE-like, CE interface spec (600e− incoherent, 1500e− incoherent+coherent) 
 Also check as a function of parameters 
 Use ProtoDUNE data when available 


Noise modeling: motivation

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Previous work

  • Based on MicroBoone parametrisation by IFT
  • Different noise generators introduced to Larsoft/dunetpc


– Exponential model
 – MicroBooNE model
 – Coherent model

  • Code under debugging, not available yet under

repository

MicroBoone noise paper, arXiv:1705.07341v1

Noise simulation/removal services focused on protoDUNE

Jingbo Wang, David Rivera, Robert Sulej, Michael Mooney

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  • The approach is hardware

based and in time domain.

  • In frequency domain we can not

measure the phase offset between different components or quick frequency shifts ….

  • Creating noise components,

(harmonic/random…) in time domain regards to Hardware circuits to mimic the frequency specification of (FFT) noise.

  • We creating a flexible tool having all

noise components then use them to mimic a realistic noise model whenever we need.

  • 128 channels per FEMB = 40

U + 40 V + 48 X Channels

FEMB - 128 ch = 8 x 16FE ASICS-> 8 x 16FE ADC-> 2 COLDATA Each coldata 2 x 64

Analog ASICs (FE and ADC) and Cold Digital ASIC (COLDATA) Interface_Agreement_v1 2015

Noise modeling: considerations

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Noise modeling: considerations

  • Noise sources, Model, Characteristics; three types of noise in TPC:

1. Fundamental noise (white/pink noise,…)

  • Comes from analog readout, proportional to the total capacitive load on the input

channel(wire length,..) and channel independent

  • Simulated already in a basic level in MC (take out and add it latter)

2. Parasitic and EMI (pickup noise, HV/LV PSs ….)

  • Location (channels) dependency
  • Coherent noise spectrum characteristics is steady through time. Might need to be

monitored daily bases (done offline)

  • Not simulated in MC

3. Detector noise (Microphonic, ..)

  • characteristics is not steady!? Should be study
  • Signal distortion
  • 1. Pedestal drift, death channels
  • 2 scenarios: MicroBoone noise level and ProtoDUNE noise level 


tune noise model characteristics like noise geometry, level for collection & induction planes, spectrum,.. To DUNE.

The MicroBoone MB scheme is different than DUNE 
 so we focus on protoDUNE-like noise model

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Noise types: 1-Color noise

  • Color noise: 



 White, pink, red (Brownian), grey 
 Tuneable: Amplitude

  • Applied randomly to each channel
  • Now implemented Pink ∝=1


As learned from microBoone and 35t

Sα( f ) ∝ 1 fα

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Noise types: 2-Coherent noise

  • Coherent (Common) harmonic noise : periodic (fixed frequency) + random (chirp). 


Tuneable: Amplitude, Frequency and PhaseOffset

  • The Coherent noise model is characterised by a series of wide Gaussian


bumps and a number of discrete narrow lines.
 Coherent noise = exponential background + constant offset + Gaussian peaks

From 3x1x1

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  • Coherent harmonic plus non harmonic
  • LV regulator
  • 6 (or N) harmonic components with different phase and amplitude
  • Non harmonic coloured noise (common mode)
  • Quick frequency drift components (only one )
  • HV
  • 2 (or N) harmonic components with different phase and amplitude
  • Highest effect on U plane almost zero amplitude on X plane (learned fro microBoone)

Noise types: 2-Coherent noise

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Signal distortion: pedestal drift

  • Pedestal drift (implemented as filtered white noise)

subject to be studied in protoDUNE, probably Brownian (red) noise will described better.


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Change/tune coherent (common) noise by detector geometry, boards arrangement:

128 channels per FEMB = 40 U + 40 V + 48 X Channels

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CoherentBundelAmp = [ 1 1 2 1 2 1 2 2 4 5 3 4 4 5 4 3 2 2 1 1 ] ; % amplitude in each FEMB

Signal distortion: geometry effects

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Noise model 1+2+SD

  • Coloured noise
  • Coherent noise
  • LV regulator
  • HV
  • Signal distorsion

Noise modelled already in Mathlab:

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Parameters file

  • DriftSamples= 4494; samplerate = 2e6; APAchannels = 2560; Uchannels = 800 ; Vchannels = 800 ; Xchannels = 960 ;
  • Ratio_XtoUV = 0.8 ; % Ratio of noise of Collectio to induction plane
  • ShapingTimeC = 1 ; % uS
  • AmpRMSNoise = 3 ; % noise ADC RMS UV
  • NonC_Noise_model = 1 ; % pink 1 , white 0 , Brownian 2 , Blue -1 , violet -2
  • %LVCohNOiseBudle= 32 ;
  • LVBund_U = 40 ; LVBund_V = 40 ; LVBund_X = 48 ;
  • HVCohNOiseBudle = 2560 ;
  • % Coherent nois harmonics
  • NHarmonCom = 6 ; % number of components
  • CohPhaseoffset= zeros(1, NHarmonCom) ; % phase different of components would be added randomly
  • %CohPhaseoffset = [] ;
  • CohMixAmp = [ 3 2 2 2 2 1 ] ; % Amplitude of components ADC
  • CN_Frq = [ 5300 11000 23000 49000 55000 99000 ] ; % frequency of components AD
  • % Coherent nois NON harmonics
  • Amp_NC_NonHarmo_pink = 1.0 ;
  • CoherentBundelAmp = [ 1 1 2 1 2 1 2 2 4 5 3 4 4 5 4 3 2 2 1 1 ] ; % amplitude in each FEMB
  • CN_FEMB_UVX_ratio = [ 1 ,1 , 1] ;
  • LVRegFreqdirfter= { 'TargetFrequency', 250000, 'InitialFrequency', 450000}
  • % Add HV Noise
  • HV_NHarmonCom = 2 ; % number of components
  • HV_CohMixAmp = [ 2 4 ] ; % Amplitude of components ADC
  • HV_CN_Frq = [ 33000 110000 ] ; % frequency of components AD
  • HV_CN_FEMB_UVX_effect = [ 2.5 , 1 , 0.2] ; % Amplitude on different U V X channels

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Noise model 1+2+SD

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Noise addition: raw waveforms

prodmarley_nue_spectrum_dune10kt_1x2x6_5_20160827T183253_gen_5962ba7e-feda-4c65-a809-586dc6bb8926_g4_detsim_nozs.root

1APA 2560Ch 4490 drift samples

Temporary Python/C++ scripts: add noise to extracted waveforms (digits)

Induction wires Collection wires

2245 µs

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Noise addition: raw plus 1+2+SD model

Addition of generated noise to 3 channels

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Noise addition: raw plus 1+2+SD model

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3 planes wires reco

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Generated for 
 grouped channels 40 U V 48 X

Noise addition: raw plus 1+2+SD model

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Summary and plans

  • Some noise files available can be used to be added to

waveforms for hit finding and trigger studies. 
 
 12 APA noise file at: /afs/cern.ch/user/b/babi/public/N1
 readme file for detail of noise parameters

  • Extract useful information from protoDUNE tests tune the

parameters

  • Request to production:


MARLEY events with Radiological background, NO Zero Suppression, NO Noise.

  • LongTerm: already started the integration in LarSoft

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Backup

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