KETEK offers a new vacuum type SDD with an area of 115 mm² collimated to an active area of 80 mm². The energy resolution is typically below 130 eV for the Manganese Ka line and peak to background values of more than 12.000 can be achieved. Since the SDD chip surface is only 1.8 mm below the Be window plane realistically distances around 3mm beween sample and active detector area can be achieved in a TXRF application.
With the unprecendented spectroscopic configuration the present limit of detection (LOD) can be improved by a factor of about 60.