Modeling scintillator and WLS fiber signals for fast Monte Carlo simulations

Sánchez, F.; Medina‐Tanco, G.

doi:10.1016/j.nima.2010.03.110

Cited by 9 publications

(9 citation statements)

References 6 publications

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“…We simulate the SiPM with a PE generator based on an electronic model [10] fitted to analog data. The optical fiber and scintillator are simulated using a muon generator based on a double-exponential decay law [11] that describes the number of detected PEs, also fitted to analog data. We then include the electronics using transfer functions [6,12] based on the circuit layouts tuned to digital data.…”

Section: The Simulation Of the Underground Muon Detectormentioning

confidence: 99%

Simulating the signal of the AMIGA underground muon detector of the Pierre Auger Observatory

Botti¹,

Sánchez²,

Roth³

et al. 2021

Proceedings of 37th International Cosmic Ray Conference — PoS(ICRC2021)

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We present a detailed description of the simulation development and validation of the underground muon detector signal for the Pierre Auger Observatory. To this aim, the detection system was thoroughly characterized in the laboratory. It consists of plastic-scintillator strips with optical fibers that conduct light towards silicon photomultipliers whose output is then processed with two complementary read-out channels. These measurements allowed us to design a fast and reliable simulation chain that fully reproduces the signal of single muons impinging on the scintillators.

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Section: The Simulation Of the Underground Muon Detectormentioning

confidence: 99%

Simulating the signal of the AMIGA underground muon detector of the Pierre Auger Observatory

Botti¹,

Sánchez²,

Roth³

et al. 2021

Proceedings of 37th International Cosmic Ray Conference — PoS(ICRC2021)

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show abstract

“…Due to the emission delays, the incoming photons spread in time, producing a signal with a structure for which the number of PEs in amplitude is not equivalent to the number of PEs in charge, since not all photons add to the maximum signal amplitude. Furthermore, the total number of PEs measured by the SiPM depends on the position where the muon arrived at the scintillator strip due to the optical-fiber attenuation, which follows a double-exponential decay law [16] 𝑛 PE = 𝑎 e…”

Section: Analog Simulation: From Photons To Muonsmentioning

confidence: 99%

Development and validation of the signal simulation for the underground muon detector of the Pierre Auger Observatory

Botti,

Sánchez,

Roth

et al. 2021

Preprint

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The underground muon detector of the Pierre Auger Observatory is aimed at attaining direct measurements of the muonic component of extensive air showers produced by cosmic rays with energy from 10 16.5 eV up to the region of the ankle (around 10 18.7 eV). It consists of two nested triangular grids of underground scintillators with 433 m and 750 m spacings, and a total of 71 positions, each with 192 scintillator strips (30 m 2 ) deployed 2.3 m underground. The light produced by impinging muons in the scintillators is propagated with optical fibers towards an array of silicon photomultipliers. In this work, we present the development, validation, and performance of an end-to-end tool for simulating the response of the underground muon detector to single-muon signals, which constitutes the basis for further simulations of the whole array. Laboratory data and simulation outcomes are found consistent, showing that with the underground muon detector we can measure single muons, with an efficiency of 99%, up to about 1050 particles arriving at exactly the same time in 30 m 2 of scintillator. K: performance of high-energy physics detectors; simulation methods and programs; photon detectors for UV, visible and IR photons (solid-state) (PIN diodes, APDs, Si-PMTs, G-APDs, CCDs, EBCCDs, EMCCDs, CMOS imagers, etc); front-end electronics for detector readout * Corresponding author.

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“…In order to do this the fibers were deployed in the scintillator groove in groups of 32 (for each scintillator module side) and the optical cement was applied using a specially designed tool to avoid bubbles and other inhomogeneities in the application process which might lead to variations of the refractive index of the glue along the scintillator strip. Further characterization of these kind of fibers is described in [15].…”

Section: Jinst 6 P06006mentioning

confidence: 99%

AMIGA at the Auger Observatory: the scintillator module testing system

et al. 2011

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AMIGA is an extension of the Pierre Auger Observatory that will consist of 85 detector pairs each one composed of a surface water-Cherenkov detector and a buried muon counter. Each muon counter has an area of 30 m 2 and is made of scintillator strips with doped optical fibers glued to them, which guide the light to 64 pixels photomultiplier tubes. The detector pairs are arranged at 433 m and 750 m array spacings. In this paper we present the testing and initial calibration system for the scintillator modules that constitute each muon counter of AMIGA. The scintillator modules are tested with a "scanner" that consists of an x − y positioning system that moves a 5 mCi 137 Cs radioactive source over the module taking data at fixed locations. The scanner both tests the module for possible fabrication defects and stores the light-attenuation curve parameters. A complete scanning process of a 64 strip scintillator module has been performed and results are presented. Also, attenuation curves obtained with scanner and with background muons are compared with satisfactory results.

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Modeling scintillator and WLS fiber signals for fast Monte Carlo simulations

Cited by 9 publications

References 6 publications

Simulating the signal of the AMIGA underground muon detector of the Pierre Auger Observatory

Simulating the signal of the AMIGA underground muon detector of the Pierre Auger Observatory

Development and validation of the signal simulation for the underground muon detector of the Pierre Auger Observatory

AMIGA at the Auger Observatory: the scintillator module testing system

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