ProtoDUNE Web-based 3D Event Display Bee Chao Zhang BNL 8/22/2018 - - PowerPoint PPT Presentation

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ProtoDUNE Web-based 3D Event Display Bee Chao Zhang BNL 8/22/2018 - - PowerPoint PPT Presentation

8/22/2018 1 ProtoDUNE Web-based 3D Event Display Bee Chao Zhang BNL 8/22/2018 2 Bee is a general web -based 3D event display for LArTPC Currently supports microboone, protoDUNE, dune35t, etc. Created a special


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ProtoDUNE Web-based 3D Event Display “Bee”

Chao Zhang BNL

8/22/2018

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SLIDE 2

 “Bee” is a general web-based 3D event display for LArTPC

  • Currently supports microboone, protoDUNE, dune35t, etc.

 Created a special application for protoDUNE live-stream monitor

  • https://www.phy.bnl.gov/twister/bee/set/protodune-

live/event/0/?camera.ortho=false

  • Demo with simulated events

 Special features for protoDUNE monitor:

  • Live-stream: update every few seconds (configurable)
  • Box-view: only show region mostly related to beam activity
  • Full screen: Menu -> Camera -> Play (Fullscreen)

Normal View “Box” View

8/22/2018

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How did it work

 This flow can in principle be simplified to have everything live in CERN.

  • File transfer is small anyway (<1MB per event)

Larsoft module to extract 3D reco space points

.root CERN BNL .json

Xrootd transfer

Convert & Serve Bee Web-app

p3s

One file (few events) every ~few min One event every ~few sec

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Comments on the Reconstruction

The 3D event display can only work as well as

the 3D reconstruction does

  • Currently use the LArSoft “SpacePointSolver” algorithm

from Chris Backhouse

  • Requires good noise removal and signal processing on

all three wire planes to match their measured charges

  • Need prompt development on this front with the real data

8/22/2018

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