TY - JOUR AU - D DiChio AU - S Natali AU - C Kuyatt C2 - Review of Scientific Instruments DA - 1974-04-01 00:04:00 LA - en M1 - 45 PB - Review of Scientific Instruments PY - 1974 TI - Focal Properties of the Two-Tube Electrostatic Lens for Large and Near-Unity Voltage Ratios ER -