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Development of liquid argon detectors for neutrino physics

Grant number: 16/22738-0
Support type:Scholarships abroad - Research
Effective date (Start): January 27, 2017
Effective date (End): January 26, 2018
Field of knowledge:Physical Sciences and Mathematics - Physics
Principal Investigator:Ernesto Kemp
Grantee:Ernesto Kemp
Host: Gustavo Cancelo
Home Institution: Instituto de Física Gleb Wataghin (IFGW). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil
Local de pesquisa : Fermi National Accelerator Laboratory (Fermilab), United States  
Associated research grant:16/01106-5 - Liquid argon program at UNICAMP, AP.JP

Abstract

The Experimental Neutrino Physics is facing a changing in its paradigm concerning the detection technique for large experiments. Traditional techniques employing water and liquid scintillators reached their maximum performance and can only contribute, through increased scale of the detectors, to the statistics of collected data. The Liquid Argon Time Projection Chambers (LArTPC) have been shown to be the most promising technique to raise the level of quality of data from neutrino interactions in terms of spatial and energy resolutions. The LArTPCs form the basis of the neutrino research program at Fermilab (Fermi National Accelerator Laboratory - FNAL), Batavia (IL) USA. The program is broad in physics research scope and also in new technologies. The strategy is based on the gradual increase of the detector size and enhancements until reaches the state of the art that will be used in the ambitious project of a 50 kiloton LArTPC to be installed in an underground laboratory (DUNE). The photon detection system is an essential part of LArTPCs. The neutrino group from UNICAMP proposed an innovation in the photon collection system, the device called ARAPUCA, based on the combination of wavelength shifter lms and dichroic lters that trap the Argon scintillation photons, increasing the efficiency in light collection. The objective of this projects to have funds for a stay at the Fermilab and work in Research and Development of the ARAPUCA, to find optimal parameters of the optics, geometric configuration, mechanics and readout electronics for light sensors in order to get maximum performance of the device. At the same time I also intend to work on other components of LArTPC, such as studies of the anodic plans, which combined with the light detection system, provide the information necessary for reconstruction of neutrino events in LArTPCs. (AU)