X-ray Source 40B1


The RS 40B1 X-Ray Source is a high intensity twin anode Al/Mg source optimized for XPS / ESCA, High Pressure XPS experiments (option). Design of the anode, filament and source housing guarantees maximum X-Ray intensity and very low crosstalk between the anode faces. A specially configured nose cone allows maximum access to the sample.

Source for characteristic X-Ray emission lines - Mg (1253 eV), Al (1487 eV) – other coating materials on request.


  • Specially configured nose cone
  • Software control (basic version)
  • Very low cross-talk
  • High intensity twin anode AL / Mg
  • Low magnetic field
  • Hermetically sealed housing
  • very efficiently water-cooled inner housing in order to reduce thermal damage to the sample during operation
  • in-built double high voltage protection together with hermetically sealed housing
  • Able to work in high pressure experiments in the mbar range
  • Able to work under full control with limited water flow


  • Differential pumping (for HP X-ray source)
  • Linear shift: 50 - 100 mm (also tilt options)
  • High Pressure extension


Software extension – can be integrated with RAPID SE


Technical data

Anode: Al/Mg (other materials on request)
Power: Mg/Al, 400/600 W
Anode voltage: 0 - 15 kV
Filament emission: 0 - 40 mA, resolution 0.1 mA
Cross talk: < 0.35 %
Magnetic field at sample: below 0.5 μT
Mounting flange: DN 40CF
Bakeout temperature: up to 250°C
Water cooling: required
Insertion length: 285 mm
Energy range 0 - 20 keV
Spot size: Dependent on working distance
Cathode type: Thoriated Tungsten
Filament current:   0,5A - standby ~ 0 - 2,5A in operation 5A maximum