Study of light yield for different configurations of plastic scintillators and wavelength shifting fibers

0547020 - FZÚ 2022 RIV NL eng J - Journal Article
Zong, Z. … Total 14 authors
Study of light yield for different configurations of plastic scintillators and wavelength shifting fibers.
Nuclear Instruments & Methods in Physics Research Section A. Roč. 908, November (2018), s. 82-90. ISSN 0168-9002. E-ISSN 1872-9576
Research Infrastructure: AUGER-CZ - 90038
Keywords : plastic scintillator * WLS fiber * optical coupling
OECD category: Condensed matter physics (including formerly solid state physics, supercond.)
Impact factor: 1.433, year: 2018
Method of publishing: Limited access
https://doi.org/10.1016/j.nima.2018.08.029

In the effort of the AugerPrime scintillator surface detector R&D activity, we investigated the performances of different extruded and cast plastic scintillators that were read out with wavelength-shifting (WLS) optical fibers and then coupled to a PMT. In particular we compared the light yield of eighteen scintillator/fiber configurations, obtained combining eight different scintillator bars with six fiber types, in order to investigate which was satisfying the AugerPrime specifications in terms of light production (> 12 photoelectrons per minimum ionizing particle). In this paper, we present the results of the study on different scintillator bar geometries, scintillator production techniques, and wavelength-shifting optical fiber types. We also propose an effective way to optically couple the fibers to the PMT entrance window.

Permanent Link: http://hdl.handle.net/11104/0323383