EGH-8201 / EGPS-8201

EGH-8201 / EGPS-8201

Starting price Basic System – options not included: $160,600

High energy electron gun with focusable beam and high current

Starting price Basic System – options not included: $160,600

High energy electron gun with focusable beam and high current

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Model #: EGH-8201 EGPS-8201


Focusable, High Energy Electron Beams, with High Current Density up to 20 mA Pulsed

10 keV to 100 keV


  • General Vacuum Physics
  • Radiation Studies
  • Surface Bombardment
  • Semiconductor Research
  • Biological Specimen Irradiation
  • X-ray Generation
  • Plasma Excitation
  • Fluorescence Studies
  • Surface Physics Studies

Features / Options:

  • High Beam Currents, to 20 mA Pulsed
  • Spot Size down to 1 mm
  • Magnetostatic Focusing
  • Magnetostatic Deflection (Optional)
  • Pulse Capability
  • Internal Alignment During Operation
  • Computer / Remote Control
  • User-Replaceable Firing Units
  • Differential Pumping

Energy Range: 10 keV to 100 keV
Beam Current: 10 nA to 1 mA (pulsed to 20 mA)
Spot Size: 1 mm to 100 mm
Mounting: 6.0″ CF

The Kimball Physics EGH-8201 Electron Gun with its matching EGPS-8201 Power Supply is a complete subsystem ready to attach to the user’s vacuum system and turn on. It can deliver electrons over a very broad range of energies, currents, and power. The EGH-8201 has high current, pulsed applications for use in space materials testing, radiation studies, semiconductor research, x-ray generation and plasma excitation.

The gun uses a refractory metal disc cathode to generate a high energy, high current, focusable electron beam. Both beam energy and beam current are independently adjustable over wide ranges; the energy from 10 keV to 100 keV, and the current from 10 nA to 1 mA andup to 20 mA pulsed. The electron beam is pulsed by an input signal to the control grid.

The adjustable optics of the gun can adapt to different divergences and different working distances. The spot size can be varied from 1 mm to 100 mm. A magnetic focusing lens and magnetic centering deflection feature provide beam control with low aberration. In addition, the cathode to anode spacing is internally adjustable to change perveance.

The gun features an adjustable cathode feedthrough assembly that allows the mechanical alignment of the firing unit with respect to the anode and the column. This alignment can be done in real-time while the gun is operating with the beam on.

Additional information

Weight 5 lbs
Beam current max

Beam current min

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Spot size max

Spot size min