Department of Physics;
Faculty of Natural Sciences;
Stellenbosch University;
Cape Town;
Republic of South Africa;
Department of Subatomic Physics;
iThemba LABS;
Cape Town;
Republic of South Africa;
Sector of Neutron Activation Analysis and Applied Research;
Frank Laboratory of Neutron Physics;
Joint Institute for Nuclear Research;
Dubna;
Russian Federation;
Atmospheric; Deposition; Trace; Elements; Mosses; Lichens; Instrumental; Neutron; Activation; Analysis; Multivariate; Statistical; Analysis;