Differentiable Simulator

Wednesday 2 Feb 2022, 14:00 → 15:00 America/Los_Angeles

SLAC

Zoom location:
https://stanford.zoom.us/j/97319095836?pwd=d2UxY3NjcjFVby85VnhtUVJtYzI1Zz09&from=addon

Relevant talks, etc, from past meetings are collected here:
https://drive.google.com/drive/folders/1NY1QQ9CWsDYwelAcDrOjOSxS9S0kZjJC

SIREN paper:
https://www.overleaf.com/project/61d5e4c416ff47b28a2a6ac5

Differentiable sim outline:
https://docs.google.com/document/d/1eCGSlq1hmZJMvrSTGKlXzE1V7-nKICxVx1D1DmipcMs/edit?usp=sharing

Differentiable sim paper:
https://www.overleaf.com/project/61ddc9996dce1015f254082f

14:00 → 14:30 TPC Discussion

Discussion of items related to ongoing TPC work. General topics include e.g.:

Completion of simulator:
- Current latest larnd-sim has E-field effect on induced charge

Solving for the input image:
- Gradient-based method
- Neural-network inverse solver
- Uncertainty estimate for the inferred input
- Demonstration with a “nominal sample” (particle bomb)

Solving for the model parameters:
- List target model parameters for demonstration
- Prepare data samples to demonstrate with experiment constraints
- Demonstration + paper

Speakers: Sean Gasiorowski (SLAC), Yifan Chen (SLAC), Youssef Nashed (SLAC)

14:30 → 15:00 PMT Discussion

Discussion of items related to ongoing PMT work. These include, e.g.:
- Reproduce Photon Library within statistical uncertainty
- Demonstrate data-driven optimization
- Demonstrate scalability (speed and size of the volume)
- Paper status?

Speakers: Chuan Li, Minjie Lei (SLAC), Patrick Tsang (SLAC)