TY - JOUR AU - Robert Levis AU - C. Waltman AU - L. Cousins AU - Guild Copeland AU - Stephen Leone BT - Journal of Vacuum Science \& Technology A: Vacuum, Surfaces, and Films DA - Jan-07-1990 DO - 10.1116/1.576594 PY - 1990 EP - 3118 T2 - Journal of Vacuum Science \& Technology A: Vacuum, Surfaces, and Films TI - A hyperthermal (0.1\textendash4 eV) F atom beam source suitable for surface etching investigations VL - 8 SN - 07342101 ER -