A GEANT4 Monte Carlo simulation to describe the time response of a coupled SiPM and LYSO detection system

Leming, E. J.; Santo, A. De; Salvatore, F.; Camanzi, B.; Lohstroh, A.

doi:10.1088/1748-0221/9/06/c06008

Cited by 3 publications

(2 citation statements)

References 23 publications

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“…GEANT4 is one of many software which allows to simulate them [13,14] and help the experimental measurements. As it was mentioned above, the use of SiPMs has shown some advantages when reading the signal and, simulations in this field have been developed [15,16,17,18]. We define the intrinsic time resolution (ITR) by the standard deviation of the mean of the optical photon arrival time distribution (AT) to the Scorer.…”

Section: Introductionmentioning

confidence: 99%

Intrinsic time resolution and efficiency characterization for two size of BC-404 plastic scintillators studies in Geant4

Fernández,

Herrera,

Barbosa

et al. 2021

Preprint

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The time resolution (TR) is one of the most important characteristic of a detector. For the case of a scintillator, the collection of light also is important, it depends of the effective area of the photo-sensor (Scorer ). The Photomultipliers Tubes (PMTs), normally, have an effective area greater than the Silicon Photomultipliers (SiPMs), however, due to its voltage of operation, their size and cost, in some cases it can be difficult to work with them. In which case, it is preferable to use SiPMs. The value of TR also depends of the size and geometry of the scintillator, number of photo-sensors and the electronic part.In this work, we study the mean optical photon arrival time distribution (AT) to a Scorer from a SiPM of 6×6 mm 2 . We define the variation of AT as the intrinsic time resolution (ITR). In Geant4, we simulated two different geometries: square and hexagonal, for a BC-404 plastic scintillator coupled to one Scorer. The sources simulated were Sr 90 , Co 60 , Cs 137 , Na 22 and µ − of 1 GeV. It is shown that AT and ITR depends of the geometry and size of the plastic scintillator, the location of the Scorer, the incident particle and its energy. Then, the ITR and therefore the TR is not a constant for a detector. Finally, we show the relation between AT and the deposited energy by the particle incident, which are related in the experiment to the response time event of the detector and the deposited charge by the incident particle, respectively.

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Section: Introductionmentioning

confidence: 99%

Intrinsic time resolution and efficiency characterization for two size of BC-404 plastic scintillators studies in Geant4

Fernández,

Herrera,

Barbosa

et al. 2021

Preprint

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“…Recently, Monte Carlo codes have been utilized in order to simulate the physical processes related to the transport of particles and the corresponding generation of optical photons in the scintillation medium, thereby facilitating the calibration procedure for several nuclides and the optimization and design of diverse instruments [7][8][9][10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

GEANT4 simulation of the response of a liquid scintillation counter

Hurtado

2017

J. Inst.

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Liquid Scintillation Counting (LSC) is widely used as a very efficient technique for radioactivity quantification. LSC is a powerful tool applied as much in low level environmental radioactivity monitoring, as in radionuclide metrology for the activity standardization of electron capture, pure-beta, and alpha nuclides. In order to quantify the sample activity, the number of scintillation photons are counted by one or several PMTs. However, the scintillation count rate varies with the detection efficiency. As an alternative to traditional methods for the calculation of detection efficiency, a Monte Carlo approach based on GEANT4 toolkit is presented for the simulation of light emission inside a Quantulus 1220 liquid scintillation counter with two PMT photomultipliers tubes working in sum-coincidence mode. To this end, the GEANT4 simulation handles a variety of processes at optical wavelengths including refraction and reflection at medium boundaries, Rayleigh scattering and bulk absorption, and additional processes which produce optical photons such as Cherenkov effect, transition radiation and scintillation, and includes a description of optical properties associated with each material constituting the detection system. The objective is to simulate the propagation of optical photons from their creation in the liquid scintillation cocktail to the production of photoelectrons in the PMTs. In this paper, we report in detail the results of the proposed simulation (detection efficiency, and additionally wall effect and absorption probabilities of gamma-rays) for different radionuclides such as 14C, 3H, 54Mn and 90Y, and its validation through the comparison with the experimental measurements.

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Conceptual design and simulations for the Detector Array for Energy Measurements Of Neutrons (DAEMON): Validation of optical physics simulations

Bidaman,

Radich,

Garrett

et al. 2024

Nuclear Instruments and Methods in Physics Research Section A:

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A GEANT4 Monte Carlo simulation to describe the time response of a coupled SiPM and LYSO detection system

Cited by 3 publications

References 23 publications

Intrinsic time resolution and efficiency characterization for two size of BC-404 plastic scintillators studies in Geant4

Intrinsic time resolution and efficiency characterization for two size of BC-404 plastic scintillators studies in Geant4

GEANT4 simulation of the response of a liquid scintillation counter

Conceptual design and simulations for the Detector Array for Energy Measurements Of Neutrons (DAEMON): Validation of optical physics simulations

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