Ion Gun Controllers




The NTI 1400 series Ion Gun Controllers provide power and all of the monitoring functions required to operate the Model 1401, 1403, and 1407 Ion Guns. Design features include:
  • Precise and stable lens voltages
  • Emission regulated electron impact supply
  • Front panel raster controls with external programmability
  • Power interlocks for safety and equipment protection
  • Remote On/Off control for automated operation from external equipment
  • Raster compensation electronics to correct for changes in sample geometry and working distance
  • Comprehensive front panel system parameter monitoring

Controller Specifications

 Input Power
 115/230VAC 50/60Hz auto-select operation. Fused at 3.3/1.8A.
 Beam Energy
 0 - 5000V, 1mA switch mode supply continuously variable.
Output capacitance: 0.0047µF.
 Condenser Focus
  0 - 5000V, 1mA switch mode supply continuously variable. Output voltage scales with energy. Output capacitance: 0.0047µF
 Objective Focus
0 - 5000V, 1mA switch mode supply continuously variable. Output voltage scales with energy. Output capacitance: 0.0047µF
 Filament Power
Emission regulated supply with front panel selectable filaments providing 5V@ 5A max.
 Electron Bombardment
Electron accelerating voltage internally adjustable to 150V.
Seven settings of electron emission current selectable from front panel rotary switch.
 Ion Extraction
Internally adjustable to 1500V.
 Deflection Variable bi-polar 350V DC supply for +X, -X, +Y and -Y deflection. Remaining octupole elements are supplied from a resistive divider network.
 Interlocks HV cable disconnection turns off HV supplies. Adjustable high pressure interlock switches off HV supplies in the event of system overpressure. System and Auxiliary interlocks provide total shutdown in the event of system or auxiliary equipment failure
 Front Panel Monitoring
Digital panel meters provide precision monitoring of all critical parameters including; lens voltages (4 1/2 digits), ion source pressure and beam current (3 1/2 digits), filament current and voltage (3 1/2 digits), emission current (3 1/2 digits).
 Chassis Dimensions
483(W)x132.5(H)x435.4(D) mm. 19 inch rack-mountable desktop case 3U high.

The 1401 Ion Gun Controller comes with these additional features:
  • Faraday Collector for beam current measurement

The 1403 Ion Gun Controller comes with these additional features:
  • Dual Condenser Focus
  • Internally adjustable DC supply for Bend Optics

The 1407 Ion Gun Controller comes with these additional features:
  • Dual Condenser Focus
  • Faraday Collector for beam current measurement