Calorimetric efficiency of the DUNE experiment

The Deep Underground Neutrino Experiment is a long-baseline neutrino experiment which is under construction in the United States. It will be composed of a Near Detector system located a few hundred meters from the neutrino source at Fermilab and a far detector system composed of four multi-kt LArTPCs at Sanford Underground Research Facility in South Dakota. The experiment will measure the leptonic CP violation phase of the PMNS matrix and discriminate the ordering of neutrino masses. Additional physics goals include detection of neutrinos from supernovae collapse and search for possible proton decay. One component of the Near detector complex is the System for on-Axis Neutrino Detection apparatus, which includes GRanular Argon for Interaction of Neutrinos, a novel liquid Argon detector that aims at imaging neutrino interactions using scintillation light collected by optical system and read-out by SIPM matrix. This thesis work aims at studying the GRAIN performances as a homogeneous calorimeter, able to measure the energy deposited by charged particles in LAr through scintillation photons emitted along their path inside the vessel. The energy calibration of the liquid argon volume required to write (and validate) an efficient software for the detector response simulation to the arrival of scintillation photons.

Verification of rupture disc sizing of Acrylic Reactor

The primary goal of this thesis is to verify the rupture disc sizing of the acrylic reactor. Primarily the test to check the sizing was divided into several stages. It went on to examine ideas to explain the concern and ethical ways, as well as remedies and suggestions to solve the issues and difficulties that were discovered. This thesis will highlight the gathering and arranging of reaction data (recipe composition, enthalpies, reaction temperature, and catalyst feeding times) of the products to be chosen, in accordance with pre-established criteria. To collaborate with the research and development team in the lab to carry out calorimetric testing for the important recipes that have been identified. The verification of the currently installed Rupture Discs in the plant based on the calorimetric test findings is the final stage. This thesis used two separate calorimetry techniques: Phi-TEC II adiabatic calorimetry and differential scanning calorimetry (DSC). The target of the experiment is to check and confirm the correct size of the reactor rupture disc. Arkema (Boretto/Coatex) plant (Emilia romagna) provided a recipe and a scenario following multiple meetings and discussions. The purpose of this technical paper is to describe the outcomes of adiabatic calorimetry performed at the lab scale so that the computation of the vents for a particular recipe and scenario can be verified.