X-ray Source

A high intensity monochromatic X-ray source is a key component in a productive XPS set-up. The Scienta MX 650 X-ray source produces high intensity monochromatic Al Ka radiation. It contains an aluminium anode and a quartz crystal monochromator. It yields an excitation energy of 1486.7eV in a narrow band of 0.2 eV.

The X-rays are produced by bombardment of the watercooled aluminium anode by a fine-focussed electron beam from a tungsten cathode. The electron spot projected on the anode surface is 1 x 3 mm2, and equals the size of the X-ray spot focussed on the sample by the monochromator. This spot size matches the entrance slit dimensions of the VG Scienta electron analyzers and allows XPS measurements where the high transmission of the spectrometers is utilized.

MX650

The MX650 is a high intensity, monochromatized  Al Ka x-ray source package consisting of the XM-780 x-ray monochromator and the SAX-100 x-ray source. It is designed for optimal performance with the Scienta electron spectrometers as the spot size on the sample is dimensioned to give maximum intensity through the entrance slit of the analyzer. Furthermore, it is a very reliable source with high stability in photon flux and band width as well as low maintenance ensuring high up-time. On to product page

When measuring non conducting materials charge compensation is important. The VG Scienta charge neutralizer FG300 is optimized for use together with the MX650. More information about the FG300