16–22 giu 2024
Milano
Europe/Rome fuso orario

Differentiable surrogate model for photon propagation in a liquid argon time projection chamber

18 giu 2024, 17:30
2O
Near Aula Magna (U6 building) (University of Milano-Bicocca)

Near Aula Magna (U6 building)

University of Milano-Bicocca

Piazza dell’Ateneo Nuovo 1, Milano, 20126
Poster New technologies for neutrino physics Poster session and reception 1

Relatore

Yifan Chen

Descrizione

Many current and future accelerator neutrino oscillation experiments, such as DUNE, rely on liquid argon time projection chamber (LArTPC) as the primary detection technology, benefiting from the high light yield from the liquid argon scintillation. However, propagating the scintillation light from the production to the readout channels is typically computationally challenging. A common solution is to use a look-up table to represent the process. Detectors are increasing in size and number of readout channels, but the need to maintain O(10 cm) granularity for the look-up tables remains constant, leading to billions of parameters being required. Therefore, the look-up table approach is not very scalable. We propose to use SIREN, an implicit neural representation with periodic activation functions, to model photon propagation. It can reproduce the look-up table in 3D with high precision using orders of magnitude fewer parameters. In addition, using the differentiable nature of the SIREN model, we can optimize the photon propagation model directly with data.

Poster prize Yes
Given name Yifan
Surname Chen
First affiliation SLAC
Institutional email cyifan@slac.stanford.edu
Gender Female

Autore principale

Materiali di presentazione