Summary of preparation for Production II T. Yang (FNAL) ProtoDUNE - - PowerPoint PPT Presentation

Summary of preparation for Production II

• T. Yang (FNAL)

ProtoDUNE DRA Meeting Aug 14, 2019

Introduction

• ProtoDUNE-SP Production II was proposed on Mar 20, 2019
• https://indico.fnal.gov/event/20215/contribution/3/material/slides/0.pdf
• What was available at that time
• Calibrated beamline information
• Updated noise mitigation and ADC gain calibration
• 2D deconvolution
• New developments since then
• Updated photon detector simulation
• T0 reconstruction (Pandora, CRT, anode-piercing tracks)
• Space charge calibration

8/14/19

• T. Yang | Production II

2

Photon detector simulation

• Main developer: Laura Paulucci,

Alex Himmel

• Update geometry with ARAPUCA

modules and produce photon library

• New photon library was done on

July 14

• v7 geometry with ARAPUCA

modules was finalized on Aug 12.

• During this development, a bug with

photon detector backtracker was found by SBND and fixed by Jason

• Stock. This reduced the memory

usage in the simulation.

8/14/19

• T. Yang | Production II

3

New PD geometry

Pandora updates

• Main developer: Steve Green
• Pandora was updated to include t0

tagging for anode crossing tracks, done on July 17.

• Thanks to Martin Tzanov for

updating the geometry with the correct active volume on the cryostat size.

• Pandora MVA vertexing was

trained for test beam particle interactions at ProtoDUNE, done

• n July 25.

8/14/19

• T. Yang | Production II

4

CRT geometry updates

• Main developer: Martin Tzanov
• Updated CRT geometry using the survey results.
• Also other updates: TPC dimensions, active volume size on the

cryostat side.

• https://indico.fnal.gov/event/21095/contribution/1/material/slides/0.pdf
• https://indico.fnal.gov/event/21203/contribution/3/material/slides/0.pdf
• Finalized on July 21.

8/14/19

• T. Yang | Production II

5

CRT reconstruction

• Main developer: Richie Diurba
• Match CRT information with TPC tracks.
• First version available on June 26:
• https://indico.fnal.gov/event/21095/contribution/3/material/slides/0.pdf
• The code went through several iterations to reduce memory usage for

two CRT matching and improve purity for single CRT matching.

• Finalized on Aug 13

8/14/19

• T. Yang | Production II

6

100

• 80
• 60
• 40
• 20
• 20

40 60 80 100 x (cm) D 10 20 30 40 50 60 Number of tracks Data, Single CRT, Front 100

• 80
• 60
• 40
• 20
• 20

40 60 80 100 x (cm) D 50 100 150 200 250 300 350 Number of tracks

Data, Double CRT, Front

Anode piercing tracks t0

• Main developer: Josh Thompson, Leigh Whitehead
• Port similar algorithm from MicroBooNE to reconstruct t0 for

anode piercing tracks.

• https://indico.fnal.gov/event/18681/session/13/contribution/158/

material/slides/0.pdf

• First available on July 23. Finalized on Aug 13 after several

minor bug fixes.

8/14/19

• T. Yang | Production II

7

• d a flux of selected tracks of 1.4 per event.

5 10 15 20 25 30 35

Data

4000

• 3000
• 2000
• 1000
• 1000 2000 3000 4000

s) µ Pandora t0 ( 4000

• 3000
• 2000
• 1000
• 1000

2000 3000 4000 s) µ Anode Piercing t0 (

Data

Space charge calibration

• Main developer: Mike Mooney, Hannah Rogers
• First version of data driven map available on May 21.
• Mike made several corrections to the space charge service on

an airplane on July 1.

• Results looked much improved.
• Second version of data driven map available on July 3 to

improve the boundary issue.

• Tianle Liu and Ajib Paudel found a bug in simulation of SCE on

Aug 6, which was fixed by Mike on the same day.

• Aaron Higuera found an issue in his electron analysis. The was

improved in the third version (latest) of data driven map on Aug 9.

8/14/19

• T. Yang | Production II

8

Latest SCE simulation and calibration results

8/14/19

• T. Yang | Production II

9

MC

1 2 3 4 5 6 7 8 9 10 dE/dx (MeV/cm) Arbitrary Units MC Data dE/dx at the beginning of the shower (median)

1 GeV electrons Cosmic ray muons Ajib Aaron

Conclusions

• Huge amount of efforts over the past several months.
• Achieved a much better understanding of the SCE and

developed many new tools.

• Many young people have gained a lot of experience with data

analysis in LArTPC and are well prepared for DUNE.

• Validation, validation, validation…
• Code included in production needs to be thoroughly tested.
• Thanks to many people who are always ready to look at new

samples to find problems: Ajib, Heng-Ye, Aaron, Steve, and many

• thers.
• Will tag release v08_27_01 for production soon.

8/14/19

• T. Yang | Production II

10