DUNE Optical Detector Digitization and Backtracking Update. Jason - - PowerPoint PPT Presentation

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DUNE Optical Detector Digitization and Backtracking Update.

Jason Stock & Juergen Reichenbacher South Dakota School of Mines and Technology Single Phase Photon Detection 2018-07-16

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Updates

Jason Stock | Radiological Simulation 2

I am making changes to the photon simulation in DUNE to allow us to track how photons at an optical detector turn into signals on SiPMs. New Code

• DuneObj
• DuneObjDumpers
• OpDetDivRec.{ccx,h}

Updated Code

• OpDetDigitizerDUNE_module.cc
• PhotonBackTracker
• New data products (DUNE only for

now)

• Changes to the Digitizer simulation
• Comparison of final reco.
• Changes to the PhotonBackTracker

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OpDetDivRec

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The DivRecs. Record how photons are deposited

• n individual channels durring the

OpDetDigitizer stage. Why not art::Assn?

• Code changes were more

extensive.

• Recovery in the backtracker was

more complicated

• Bigger change than I had time to

make for minimal payout.

• Might still do so in the future

(After art events are exposed to services).

Jason Stock | Radiological Simulation

Fig 1. Diagram of the OpDetDivRec structure (From in progress technical note on BackTracking in DUNE)

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Changes to the Digitizer

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• Configurable input (
• PhotonsLite ||

OpDetBacktrackerRecord)

• New output (only for processing

OpDetBacktrackerRecords)

• OpDetDivRec
• IMPORTANT. Fcl flag for using

OpDetBTRs will over-ride LarG4Properties.

Fig 2. Diagram of the OpDetBacktrackerRecord structure (From in progress technical note on BackTracking in DUNE)

Jason Stock | Radiological Simulation

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Reco Outputs. (Default MARLEY sample)

5 Jason Stock | Radiological Simulation

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Reco Outputs.

6 Jason Stock | Radiological Simulation

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Reco Outputs.

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Changes to the PhotonBackTraker

8 Jason Stock | Radiological Simulation

• For current use cases:
• None
• New use cases:
• Weighted returns

From OpHitToChannelWeightedSimSDPs

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Where is it useful?

9 Jason Stock | Radiological Simulation

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Where is it useful?

10 Jason Stock | Radiological Simulation

Questions?