EGF-4104 / EGPS-4104

EGF-4104 / EGPS-4104

Options *


Cathode Type *

Cathode Type

Insertion Length *

Insertion Length

Starting price Basic System – options not included: $53,000

See specifications below.

Starting price Basic System – options not included: $53,000

See specifications below.

Categories: ,
Model #: EGF-4104 EGPS-4104


Medium Energy, Uniform Flood Electron Beam

200 eV to 30 keV


  • Spacecraft Charge-up Studies
  • Surface Charging Studies
  • Beta Decay Stimulation
  • Surface Physics Studies
  • Vacuum Physics Experiments

Features / Options:

  • Energy Range: 200 eV to 30 keV
  • Beam Currents to 1 mA
  • Wide Angle Uniform Beam
  • Divergence Control
  • Rotatable 2.75” CF Mounting
  • User-Replaceable Firing Units
  • Computer / Remote Control
  • Custom Apertures

Energy Range: 200 eV to 30 keV
Spot Size / Beam Current:
Standard: 15mm to 500 mm & 1 nA to 100 µA
High Current: 1 µA to 1 mA & 1.5mm to 25mm
Mounting: 2.75″ (2¾”) CF

The Kimball Physics EGF-4104 Electron Gun, with its matching EGPS-4104 Power Supply, is intended for use in a variety of ultra-high vacuum (UHV) charging studies, space physics, vacuum physics, surface physics, and nuclear simulation applications. It is a complete subsystem ready to attach and turn on. Maximum flexibility is achieved in a minimum of space; the entire unit mounts through a single standard 2.75” inch CF port.

Electrons are generated at negative high potential, and the user’s target is typically set at ground potential. Both beam energy and beam current are adjustable over wide ranges. The gun uses a space-charge-limited refractory-metal cathode to generate a uniform floodbeam and the design allows generation of the beam down to low energies, and very low currents. A high current option provides beam currents up to 1 mA. Beam divergence is partially controllable electronically over the full range of the electron energy.

Additional information

Weight 0.55 lbs
Beam current max

Beam current min

Emphasized search terms

Energy range max

Energy range min

Features options select

, , ,


Spot size max

Spot size min