A simulation study of the background for neutrinoless double beta decay search

by Luqman Ali (MS Candidate)

Friday May 22, 2015, 3:00 PM → 3:30 PM Asia/Seoul

206호 (제1과학관)

I present progress of a simulation study of expected backgrounds in the proposed AMoRE10 0u2β search experiment based on CaMoO4 crystals. Background event rates for gamma- and beta-rays from 232Th and 238U decay chain isotopes and 40K and 210Pb contaminations in the external lead shielding and detector components (such as the copper brackets and an inner lead shield), as well as from the surrounding rock and the walls and concrete floor of the laboratory, are estimated. As part of this study, different strategies involving lead, copper and stainless steel shields are considered. The background simulations are done using the Geant4 toolkit. The dependence of the expected background rates on the thicknesses of the various shielding layers is presented.

Thesis Advisor: Prof. Hongjoo Kim