@article{4438, author = {Robert Levis and C. Waltman and L. Cousins and Guild Copeland and Stephen Leone}, title = {A hyperthermal (0.1\textendash4 eV) F atom beam source suitable for surface etching investigations}, year = {1990}, journal = {Journal of Vacuum Science \& Technology A: Vacuum, Surfaces, and Films}, volume = {8}, pages = {3118}, month = {Jan-07-1990}, issn = {07342101}, doi = {10.1116/1.576594}, }