X-ray source RS 40B1

High-intensity twin anode Al/Mg source optimized for XPS and high-pressure XPS experiments. The 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. A twin anode used in the standard source allows for the separated emission of two different characteristic X-radiation emission lines: Mg (1253 eV), and Al (1487 eV) – other coating materials on request.

Technical data

Mounting flange	DN 40CF (non-rotatable)
Anode	Al/Mg (other materials on request)
Power	Al 600 W / Mg 400 W
Energy range	7 – 15 keV
Cathode current (I_cath)	up to 2.5 A
Emission current range (I_e)	0 – 50 mA
Cross talk	< 0.35 %
Magnetic field at sample	below 0.5 μT
Increased sample temperature	< 5 °C
Cathode type	thoriated tungsten
Water cooling	required, pressure 3.5 – 5 bar (max. 6 bar), flow ≥ 2.5 l/min., Tmax = 30 °C
Insertion length	285 mm; OD: 35 mm
FWHM	dependent on working distance (e.g. 30 mm for distance 15 mm)
Typical working distance	5 – 30 mm (optimum 15 mm)
Bakeout temperature	up to 250 °C
Working pressure	< 5 x 10^-6 mbar

Features

High intensity twin anode Al / Mg
Specially configured nose cone
Very low cross-talk
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 (option)
Able to work under full control with limited water flow.