2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/174385We derive the Hawking radiation for Vaidya black hole in the tunneling picture from the corresponding single particle action by the use of the radial null geodesic and the Hamilton-Jacobi method (beyond semi-classical approximation). Both results are then analyzed and compared.Corrected version of presented talk at 2nd ICMNS (October 28, 2008), Bandung, Indonesia. 13 pages, jhep style, v4: some minor corrections, references addedGeneral Relativity and Quantum Cosmologytext