Linsay, RobertGoitseona, Ramonnye .JRamonnye, Goitseona. J2023-04-182024-10-302023-04-182024-10-302022https://hdl.handle.net/10566/16639>Magister Scientiae - MScNeutrinoless double beta decay (0 ) is a rare process that is yet to be observed. Observation of neutrinoless double beta decays would imply lepton number violation, and that the neutrino is its own antiparticle (a Majorana fermion). Understanding background contributions are important in searches for such rare nuclear processes. This thesis details the design and operation of a radon detector in the context of low-background deep-underground experiments, such as the one pursued by the nEXO neutrinoless double beta decay collaboration.enAstronomyPhysicsCosmologyRadiationAstrophysicsUniversity of the Western Cape