Simulation and experimental validation of optimum read-out electronics design for scintillator bar cosmic ray telescope

• DOI: 10.1016/j.nima.2021.165019
• Publication Date: 2021-01-08T02:43:38Z
• Authors: M. Anzorena; R. Garcia; J.F. Valdés-Galicia; Y. Matsubara; Y. Itow; T. Sako; T. Kawabata; E. Ortiz; R. Taylor; A. Hurtado; O. Musalem; L.X. González; K. Munakata; C. Kato; W. Kihara; Y. Ko; S. Shibata; H. Takamaru; A. Oshima; T. Koi; H. Kojima; H. Tsuchiya; K. Watanabe; M. Kozai; Y. Nakamura
• Keywords: Silicon Photomultiplier; Bar (unit)

Abstract This paper presents a simulation/experimental technique used in the design of optimum performance read-out electronics for a new cosmic ray telescope composed of scintillator bars. This new detector, called SciBar Cosmic Ray Telescope (SciCRT), is installed on top of Sierra Negra volcano in Mexico, operating at an atmospheric depth of 575 g cm−2. The severe atmospheric conditions and high background rate of the place currently limit the performance of the detector, therefore the requirements of our design are low power consumption and high throughput rate. The simulation developed considers the interaction of high energy cosmic ray muons with the scintillator bar, generation and propagation of photons inside a wavelength shifting fiber (WLS) fiber and the detection by a multi-anode photomultiplier (MAPMT). To produce realistic signals coming from the interaction of particles, our method relies on the extraction of different parameters throughout experiment to include them in the simulation. In addition, the paper presents a muon cosmic ray experiment designed to validate the results of the simulation and test the performance of the new electronics.