Speakers
Description
The main reaction used to detect Core-collapse Supernova neutrinos in physical experiments is the inverse beta decay reaction. Positrons produced in the reaction pass through a scintillator only a few centimeters thick. For the Baksan Underground Scintillation Telescope (BUST) detector, which has a modular structure, the inverse beta decay reaction appears as a single trigger of an individual counter. The problem of detecting the reaction from neutrinos in the counter is due to a large background of single events with different natures. The main sources of background single events include:
- single muons penetrating through the detector's shielding;
- high-energy neutrons producing unstable isotopes in the detector's scintillator;
- neutrons participating in elastic collisions with target protons;
- unstable isotopes created in cascades through the inelastic interaction of muons with the detector's materials;
- local radioactivity;
- random counter triggers.
This work discusses the methodologies for evaluating each of the background components currently used in processing the experimental data of the BUST detector.
