Validation of Geant4 Pixel Detector Simulation Framework by Measurements With the Medipix Family Detectors

Abstract The MUon RAdiography of VESuvius (MURAVES) project aims at the study of the summital cone of Mt. Vesuvius, an active volcano near Naples (Italy), by measuring its density profile through muon flux attenuation. Its data, combined with those from gravimetric and seismic measurement campaigns, will be used for better defining the volcanic plug at the bottom of the crater. We report on the development of an end-to-end simulation framework, in order to perform accurate investigations of the effects of the experimental constraints and to compare simulations, under various model hypotheses, with the actual observations. The detector simulation setup is developed using GEANT4 and a study of cosmic particle generators has been conducted to identify the most suitable one for our simulation framework. To mimic the real data, GEANT4 raw hits are converted to clusters through a simulated digitization: energy deposits are first summed per scintillator bar, and then converted to number of photoelectrons with a data-driven procedure. This is followed by the same clustering algorithm and same tracking code as in real data. We also report on the study of muon transport through rock using PUMAS and GEANT4. In this paper we elaborate on the rationale for our technical choices, including trade-off between speed and accuracy. The developments reported here are of general interest in muon radiography and can be applied in similar cases.

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Status of the parallelized JUNO simulation software

EPJ Web of Conferences ◽

10.1051/epjconf/201921402008 ◽

2019 ◽

Vol 214 ◽

pp. 02008

Author(s):

Tao Lin ◽

Jiaheng Zou ◽

Weidong Li ◽

Ziyan Deng ◽

Guofu Cao ◽

...

Keyword(s):

Liquid Scintillator ◽

Simulation Software ◽

Event Generator ◽

Neutrino Experiment ◽

Simulation Framework ◽

Event Correlation ◽

Central Detector ◽

Sequential Mode ◽

Event Order ◽

Detector Simulation

The Jiangmen Underground Neutrino Observatory (JUNO) is a multi-purpose neutrino experiment. It consists of a central detector, a water pool and a tracker placed on top. The central detector, which is used for neutrino detection, consists of a 20 kt liquid scintillator target and about 18,000 20-inch photomultiplier tubes (PMTs) to detect scintillation photons. Simulation software is an important part of the JUNO offline software. To speed up the simulation, a parallelized simulation framework has been developed based on the SNiPER framework and Geant4 version 10. The SNiPER task components are in charge of the event loop, which can run in sequential mode, Intel TBB mode and other modes. Based on SNiPER, the simulation framework and its underlying parallel libraries have been decoupled. However, parallelized simulation of correlated events is a challenge. In order to keep the correct event order, a component called global buffer is developed in SNiPER. In this paper, an overview of the parallelized JUNO simulation framework is presented. The global buffer is used in the parallelized event correlation simulation. An event generator produces events with timestamps in sequential mode. These events are put into the global buffer and processed by the detector simulation algorithms in different tasks. After simulation, the events are saved into ROOT files with a ROOT I/O service running in a dedicated thread. Finally, the software performance is presented.

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The cosmic muon and detector simulation framework of the extreme energy events (EEE) experiment

The European Physical Journal C ◽

10.1140/epjc/s10052-021-09237-y ◽

2021 ◽

Vol 81 (5) ◽

Author(s):

M. Abbrescia ◽

C. Avanzini ◽

L. Baldini ◽

R. Baldini Ferroli ◽

G. Batignani ◽

...

Keyword(s):

Detection Efficiency ◽

Ground Level ◽

Simulation Framework ◽

Cosmic Muon ◽

Crossing Time ◽

Detector Geometry ◽

Single Muon ◽

Resistive Plate Chambers ◽

Set Up ◽

Detector Simulation

AbstractThis paper describes the simulation framework of the extreme energy events (EEE) experiment. EEE is a network of cosmic muon trackers, each made of three multi-gap resistive plate chambers (MRPC), able to precisely measure the absolute muon crossing time and the muon integrated angular flux at the ground level. The response of a single MRPC and the combination of three chambers have been implemented in a GEANT4-based framework (GEMC) to study the telescope response. The detector geometry, as well as details about the surrounding materials and the location of the telescopes have been included in the simulations in order to realistically reproduce the experimental set-up of each telescope. A model based on the latest parametrization of the cosmic muon flux has been used to generate single muon events. After validating the framework by comparing simulations to selected EEE telescope data, it has been used to determine detector parameters not accessible by analysing experimental data only, such as detection efficiency, angular and spatial resolution.

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Inclusion of a Charge Sharing Correction Algorithm into an x-ray Photon Counting Spectral Detector Simulation Framework

IEEE Transactions on Radiation and Plasma Medical Sciences ◽

10.1109/trpms.2020.3008861 ◽

2020 ◽

pp. 1-1 ◽

Cited By ~ 2

Author(s):

O. L. P. Pickford Scienti ◽

J. C. Bamber ◽

D. Darambara

Keyword(s):

Photon Counting ◽

Charge Sharing ◽

Simulation Framework ◽

Correction Algorithm ◽

X Ray ◽

A Charge ◽

Detector Simulation

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Computing and Detector Simulation Framework for the HIBEAM/NNBAR Experimental Program at the ESS

EPJ Web of Conferences ◽

10.1051/epjconf/202125102062 ◽

2021 ◽

Vol 251 ◽

pp. 02062

Author(s):

Joshua Barrow ◽

Gustaaf Brooijmans ◽

José Ignacio Marquez Damian ◽

Douglas DiJulio ◽

Katherine Dunne ◽

...

Keyword(s):

Baryon Number ◽

Simulation Software ◽

Experimental Program ◽

Simulation Framework ◽

Management Plans ◽

Baryon Number Violation ◽

Spallation Source ◽

The Common ◽

Detector Simulation ◽

Ray Tracing Simulation

The HIBEAM/NNBAR program is a proposed two-stage experiment at the European Spallation Source focusing on searches for baryon number violation via processes in which neutrons convert to antineutrons. This paper outlines the computing and detector simulation framework for the HIBEAM/NNBAR program. The simulation is based on predictions of neutron flux and neutronics together with signal and background generation. A range of diverse simulation packages are incorporated, including Monte Carlo transport codes, neutron ray-tracing simulation packages, and detector simulation software. The common simulation package in which these elements are interfaced together is discussed. Data management plans and triggers are also described.

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