sebassaras02/nai_sl

This repository contains the GEANT4 applications built, experimental data, and jupyter notebooks employed for the data analysis in the e-RPT publication

e-RTP Calibration and Data Analysis

This repository contains the GEANT4 applications built, experimental data, and jupyter notebooks employed for the data analysis.

Table of Contents

• Cal-Exp-Data folder: has the data for detector calibration.

• G4-Only-Det folder: has the GEANT4 application just for one detector without the RPT system.

• G4-RPT folder: has the GEANT4 application with detector and macrocommands to move it.

• RPT-Exp-data folder: has experimental data acquired.

• RPT-macros folder has the macrofiles generated for GEANT4 simulations.

• RPT-sim-data folder has the results from the GEANT4 simulation.

• RPT_1D_data_analysis.ipynb is the data treatment, data analisis, and data visualization of the results.

• utils.py y utils2.py are functions and classes to modularize the jupyter notebooks.

Data

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• The experimental data come from several experiments done in the Nuclear Science Department at Escuela Politécnica Nacional, Quito - Ecuador.
• The simulated data come from simulations run on a linux server. Thanks to Corporación Ecuatoriana para el Desarrollo de la Investigación y la Academia (CEDIA) for giving us access to your cluster.

e-RPT

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1. What is e-RPT? Ecuadorian Radioactive Particle Tracking (e-RPT) is an attempt to do the Radioactive Particle Tracking (RPT) technique in Ecuador.

2. What is only RPT? The RPT is a nuclear technique to tracking radioactive particles and reconstruct the path of those particles.

An example of the RPT system is ilustrated in the following picture.

Picture obtained from: Mohd Amirul Syafiq Mohd Yunos et al 2019 IOP Conf. Ser.: Mater. Sci. Eng. 554 012005

3. What is radiation detector calibration? The calibration of the radiation detector is process to measure how many particles are effectively registered by a radiation detector, and this is done by the Full Energy Peak Efficiency (FEPE). The FEPE was done for static source, and then used for scaled the simulated data.

$$ FEPE = \frac{AP}{E*P} $$

Where:

• AP: is the area of a photopeak for a energy window
• E: is the activity of the radioactive source
• P: is the probability of the emission

FlowChart of the Data Treatment

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  graph TD
    A[Collect data experimentally and from the simulation for static sources] --> B(FEPE calibration for experimental data and simulated data)
    B --> C{Static Calibration Successfull Yes or No}
    C -->|Yes| D[Data acquisition experimentally and from the simulation for the RPT system]
    C -->|No| E[Try all again]
    D --> F[Generation of position spectra]
    F --> G[Reconstruction of particle position]

Contacts:

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