One of the orange Aid Preprint Series in Nuclear Astrophysics by W. B. Hubbard, California Institute of Technology, Pasadena, California.; Argues that the Saturnian models are flawed as their predictions do not line up with detected gravitational events.
Helium is used extensively throughout the Apollo/Saturn V space vehicle for a number of applications. The welding use is not discussed since it is a special topic. In the first stage (S-IC), helium is used for liquid oxygen tank pressurization during vehicle checkout and launch.