References for the Free Molecular Flow Interface
1.
F. Celestini and F. Mortessagne, “Cosine Law at the Atomic Scale: Toward Realistic Simulations of Knudsen Diffusion”,
Phys. Rev. E
, vol. 77, 021202, 2008.
2.
J.M. Lafferty,
Foundations of Vacuum Science and Technology
, Wiley Interscience, 1998.
3.
J.F. O’Hanlon,
A User’s Guide to Vacuum Technology
, Wiley Interscience, 2003.