GATAN 691 PRECISION ION POLISHING SYSTEM

GATAN 691 PRECISION ION POLISHING SYSTEM Includes Gatan Binocular Microscope Ion Guns: Two Penning ion guns with miniature rare earth magnets Milling angle: fixed, about 0° Beam Energy: 1.5keV to 6keV Beam diameter: 350µm FWHM at 5keV - 800 µm FWHM at 5KeV for Broad Beam guns Current Density: 10mA/cm2 Peak Beam alignment: Precision beam alignment using fluorescent screen Specimen Stage : Sample Size:3mm or 2.3mm Mounting: Gatan patented DuoPost™ (Standard) or Graphite Holder (Optional) (contact us for more information about which mounting options are available) Rotation: Variable from 1 to 6rpm Beam Modulation: Single or double sector for exceptional cross-sectioning Vacuum: Dry Pumping System Molecular drag pump backed by a 2-Stage diaphragm pump Pressure: 5E-6Torr base pressure, 8E-5Torr operating pressure Vacuum gauge: Penning type for main chamber. Solid-state for backing pump. Specimen airlock: Gatan Whisperlok™ Specimen exchange time 30 seconds