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Optimization of geometry for the ARAPUCA prototype using GEANT 4 package

Grant number: 18/06982-3
Support type:Scholarships in Brazil - Scientific Initiation
Effective date (Start): May 01, 2018
Effective date (End): April 30, 2020
Field of knowledge:Physical Sciences and Mathematics - Physics - Elementary Particle Physics and Fields
Principal researcher:Ettore Segreto
Grantee:Rafaela Ramos Sarmento
Home Institution: Instituto de Física Gleb Wataghin (IFGW). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil
Associated research grant:16/01106-5 - Liquid argon program at UNICAMP, AP.JP


The performances of the ARAPUCA depends on the efficiency of the photosensitive device, of the shifters+dichroic filter system and on the collection efficiency of the passive box. The latter needs to be maximized by optimizing the geometry of the box and choosing the best reflector (diffusive or specular). (AU)