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

被引：2

作者：

Botti, A. M. ^{[1
,2
,3
]}

Sanchez, F. ^{[1
]}

Roth, M. ^{[4
]}

Etchegoyen, A. ^{[1
]}

机构：

[1] UNSAM, CONICET, Inst Tecnol Detecc & Astroparticulas CNEA, Buenos Aires, DF, Argentina

[2] Univ Buenos Aires, Dept Phys, FCEyN, Buenos Aires, DF, Argentina

[3] Consejo Nacl Invest Cient & Tecn, IFIBA, Buenos Aires, DF, Argentina

[4] Karlsruhe Inst Technol KIT, Inst Astroparticle Phys, Karlsruhe, Germany

来源：

JOURNAL OF INSTRUMENTATION | 2021年 / 16卷 / 07期

关键词：

Simulation methods and programs; Performance of High Energy Physics Detectors; 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;

D O I：

10.1088/1748-0221/16/07/P07059

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

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.

引用

页数：23

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