Characterization of a gamma detection system consisting of two LaBr3(Ce) detectors used in nuclear astrophysics experiments through a Monte Carlo simulation based on the GEANT4 code. This simulation allows the reproduction of the system's geometry and the assessment of its efficiencies as a function of the incident gamma-rays' energies. The obtained results are used to develop an experimental proposal for the study of nuclear reactions of astrophysical interest involving the production of unstable nuclei undergoing beta+ decay. In particular, the goal is to identify sources of experimental uncertainties and define data analysis techniques to improve the precision of measurements.
Caratterizzazione di un sistema di rivelazione gamma costituito da due rivelatori LaBr3(Ce) utilizzati in esperimenti di astrofisica nucleare tramite una simulazione montecarlo basata sul codice GEANT4, che permette di riprodurre la geometria del sistema e di valutare le sue efficienze in funzione delle energie gamma incidenti. I risultati ottenuti sono utilizzati per sviluppare una proposta sperimentale per lo studio di reazioni nucleari di interesse astrofisico con produzione di nuclei instabili verso decadimenti b+ e in particolare per identificare le fonti di incertezze sperimentali e definire le tecniche di analisi dei dati utili a migliorare la precisione delle misure.
Studio dell'efficienza di un sistema di rivelazione gamma mediante simulazioni Monte Carlo
CAVEZZA, LORENZO
2022/2023
Abstract
Characterization of a gamma detection system consisting of two LaBr3(Ce) detectors used in nuclear astrophysics experiments through a Monte Carlo simulation based on the GEANT4 code. This simulation allows the reproduction of the system's geometry and the assessment of its efficiencies as a function of the incident gamma-rays' energies. The obtained results are used to develop an experimental proposal for the study of nuclear reactions of astrophysical interest involving the production of unstable nuclei undergoing beta+ decay. In particular, the goal is to identify sources of experimental uncertainties and define data analysis techniques to improve the precision of measurements.File | Dimensione | Formato | |
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https://hdl.handle.net/20.500.12608/60987