John Newsom

EECS Department, University of California, Berkeley

Technical Report No. UCB/EECS-2021-52

May 12, 2021

http://www2.eecs.berkeley.edu/Pubs/TechRpts/2021/EECS-2021-52.pdf

The Deep Underground Neutrino Experiment aims to better understand the physics governing neutrinos using a number of different types of detectors and measurement devices. One such detector, the liquid argon time projection chamber, records the charge deposited and light emitted by neutrino interactions to measure the topology of these events. However, it is expected that the interactions in these time projection chambers located near the neutrino source will occur with such high density that resolving overlapping events will be difficult. To alleviate this problem, we propose a new model architecture, called Y-Net, that utilizes the time-varying scintillation light to improve instance segmentation accuracy on these neutrino interactions. Experiments on simulated neutrino interaction events show that by integrating the timing information carried by scintillation light, we are able to improve performance over existing techniques on the most difficult instances of piled-up interactions.

Advisors: Gireeja Ranade

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BibTeX citation:

@mastersthesis{Newsom:EECS-2021-52,
    Author= {Newsom, John},
    Title= {Towards Light Charge Association in Liquid Argon Time Projection Chambers},
    School= {EECS Department, University of California, Berkeley},
    Year= {2021},
    Month= {May},
    Url= {http://www2.eecs.berkeley.edu/Pubs/TechRpts/2021/EECS-2021-52.html},
    Number= {UCB/EECS-2021-52},
    Abstract= {The Deep Underground Neutrino Experiment aims to better understand the physics
governing neutrinos using a number of different types of detectors and measurement
devices. One such detector, the liquid argon time projection chamber, records
the charge deposited and light emitted by neutrino interactions to measure the
topology of these events. However, it is expected that the interactions in these time
projection chambers located near the neutrino source will occur with such high
density that resolving overlapping events will be difficult. To alleviate this problem,
we propose a new model architecture, called Y-Net, that utilizes the time-varying
scintillation light to improve instance segmentation accuracy on these neutrino
interactions. Experiments on simulated neutrino interaction events show that by
integrating the timing information carried by scintillation light, we are able to
improve performance over existing techniques on the most difficult instances of
piled-up interactions.},
}

EndNote citation:

%0 Thesis
%A Newsom, John 
%T Towards Light Charge Association in Liquid Argon Time Projection Chambers
%I EECS Department, University of California, Berkeley
%D 2021
%8 May 12
%@ UCB/EECS-2021-52
%U http://www2.eecs.berkeley.edu/Pubs/TechRpts/2021/EECS-2021-52.html
%F Newsom:EECS-2021-52