2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/184514We compute the flux induced tadpole and superpotential in various type IIB $Z_N$ compact orientifolds in order to study moduli stabilization. We find supersymmetric vacua with $g_s < 1$ and describe brane configurations with cancelled tadpoles. In some cases moduli are only partially fixed unless anti D3-branes are included.13 pages, LatexHigh Energy Physics - Theorytext