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A simplified numerical model for Compton cameras efficiency and spatial resolution estimation.

Aicha Bourkadi Idrissi¹, Ilenia D'Adda¹, Giacomo Borghi¹

¹Politecnico di Milano, Dipartimento di Elettronica, Informazione e Bioingegneria (DEIB), Milan, Italy; Istituto Nazionale di Fisica Nucleare, Sezione di Milano, Milan, Italy.

Physica Medica : PM : an International Journal Devoted to the Applications of Physics to Medicine and Biology : Official Journal of the Italian Association of Biomedical Physics (AIFB)

|October 24, 2025

Summary

This summary is machine-generated.

A new numerical model simplifies Compton Camera (CC) design, enabling faster efficiency optimization for nuclear medicine and environmental monitoring. This tool offers a user-friendly, cost-effective alternative to complex Monte Carlo simulations.

Keywords:

Compton camera Efficiency optimization Hadrontherapy Monte Carlo simulation

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Published on: January 30, 2020

Area of Science:

Nuclear physics
Medical imaging
Detector physics

Background:

Compton Cameras (CC) offer higher efficiency than traditional gamma cameras, crucial for nuclear medicine and environmental monitoring.
Existing Monte Carlo (MC) simulation toolkits provide accuracy but suffer from low computational efficiency for detector optimization.

Purpose of the Study:

To develop a simplified numerical model for Compton Camera (CC) multi-parameter optimization.
To provide a user-friendly, low-cost alternative to traditional Monte Carlo (MC) tools for estimating system efficiency.

Main Methods:

A simplified numerical model for a two-tier Compton Camera (CC) was developed for stochastic simulations.
The model calculates geometrical and intrinsic scatter and absorber efficiencies based on detector parameters.
Outputs include partial and total detection efficiencies.

Main Results:

Analyzed the impact of geometrical and physical parameters on total efficiency for a heterogeneous CC with GAGG and LYSO scintillators.
Validated results against ANTS2 and GATE simulation packages, showing good agreement.
Confirmed the reliability of the developed numerical model.

Conclusions:

The developed tool significantly accelerates Compton Camera (CC) configuration analysis, estimating system efficiency in minutes.
This contrasts sharply with conventional Monte Carlo simulations, which can take hours.
The model provides a reliable and efficient method for optimizing CC designs.