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Technical Note: Standalone application to generate custom reflectance Look-Up Table for advanced optical Monte Carlo
Carlotta Trigila1, Eshani Moghe1, Emilie Roncali1,2
1Department of Biomedical Engineering, University of California Davis, Davis, CA, USA.
Medical Physics
|March 27, 2021
Summary
Researchers can now generate customized crystal reflectance look-up-tables (LUTs) for Monte Carlo simulations with a new open-source application, improving radiation detector modeling and optimization.
Area of Science:
- Medical Physics
- Computational Physics
Background:
- Accurate modeling of radiation detectors is crucial for performance optimization using Monte Carlo simulations.
- Simulating light transport in scintillators and light collection by photodetectors requires high-fidelity models.
Purpose of the Study:
- To implement a validated crystal reflectance model in a standalone, open-source application.
- To enable researchers to generate customized crystal reflectance look-up-tables (LUTs) for optical Monte Carlo simulations.
Main Methods:
- Developed the LUTDavisModel application, a user-friendly standalone tool.
- The application allows generation of LUTs from various surface types, scintillators, and coupling media, or custom inputs.
- Features include computation of LUTs with custom reflectors and coupling thickness, mixture of coupling media, and plotting of precomputed LUTs.
Main Results:
- The LUTDavisModel application is easily installable on Windows, macOS, and Linux.
- Computational time for LUT generation varies from minutes to hours, depending on surface complexity and coupling media thickness.
- The core algorithm is validated and implemented in GATE v8.0.
Conclusions:
- A user-friendly standalone application for generating LUTs for GATE Monte Carlo simulations has been developed.
- The application is easily downloadable, installable, and usable by researchers.
- Future work includes expanding the database, reducing computational time via parallelization, and incorporating Cerenkov photon transport simulation.
