Electrostatic lenses are devices that steer and tighten beams of charged particles. A common type is the Einzel lens, which has three metal cylinders. To focus the beam, a high voltage is applied to the middle cylinder. Unlike a regular Einzel lens, where the outer cylinders share the same voltage, a transition lens can have different voltages for the outer cylinders. This lets the lens guide particles across a change in energy along the beam path. Transition lenses work in many environments, even ultra-clean vacuums.

  • Asymmetrical design of entry and exit electrodes
  • Stainless steel housing
  • DN100 CF beamline interface flanges
  • 10 kV high voltage vacuum insulator DN100 CF
  • 1st electrode grounded on entrance beamline section
  • 3rd electrode grounded on exit beamline section
  • DN16 CF 20 kV SHV feedthrough connected to electrode
  • 40 mm electrode inner diameter
  • Overall length 249 mm
  • Flange to flange 198 mm