GIPPE-RPT

GIPPE-RPT performs simulation and analysis for Radioactive Particle Tracking (RPT) to model and reconstruct trajectories of gamma-emitting radionuclides within reactor environments.

Key Features:

• Geant4 simulations: Uses Geant4 to simulate gamma interactions and detector responses for RPT experiments.
• OpenFOAM integration: Integrates the OpenFOAM CFD solver and imports CFD-derived density profiles into Geant4 for coupled modeling.
• Experimental parameter specification: Supports specification of reactor geometry, materials, detector configurations, tracer characteristics, domain design, detector placement, and calibration strategy.
• Configuration comparison: Supports design and comparison of multiple experimental configurations for optimization and error analysis.
• Position reconstruction methods: Implements six position reconstruction methods and evaluates them across RPT scenarios to compare performance.
• Heterogeneous density analysis: Compares reconstruction errors between homogeneous and heterogeneous media to assess the impact of density heterogeneity on RPT accuracy.
• Workflow demonstration: Demonstrates modules and workflow using a virtual NETL SSCP-I fluidized bed reactor test case.

Scientific Applications:

• High-energy physics experiments: Modeling and analysis of gamma-emitting radionuclide tracking in experimental studies.
• Nuclear engineering and reactor analysis: Evaluating particle transport and spatial diagnostics within reactor environments, including fluidized bed reactors.
• Reactor design optimization: Comparing experimental configurations and density profiles to inform reactor design and operational decisions.
• RPT method development and validation: Assessing and comparing position reconstruction methods and calibration strategies for non-invasive tracer tracking.

Methodology:

Uses Geant4 for high-energy physics simulations and OpenFOAM for CFD simulations, with CFD-derived density profiles imported into Geant4 for coupled modeling of physical processes and particle tracking.