A paper covering our work can be seen here!
Problem
Quantify light yield and attenuation in WLS fibers for low-background detector readout.

Approach
- Spectral scans vs. excitation; cut-back method for attenuation length.
- SiPM coupling tests; fixture for repeatable alignment and distances.
- Python analysis to fit attenuation and compare fiber batches.

Impact
- Data used to select fibers and routing for improved light collection.
- Reusable fixtures and scripts for ongoing detector R&D.
Tech
- Optics: coupling, alignment, spectral measurement
- Sensors: SiPM biasing, dark-count handling
- SW: Python analysis notebooks, curve fitting