Multichannel SDD Spectrometer
for XRF, XRD and EDX

The ROCOCO System

is based on the monolithic 4-channel annular SDD sensor geometry which allows placing the detector very close to the sample, with the exciting beam coming through the central hole. The result is a huge solid angle coverage of the analyzed sample and a significant reduction of the measurement time. The compact preamplifier and power supply electronics ensure the best energy resolution of 125 eV FWHM@ Mn-Ka and allows easy and compact integration into any experimental systems.

Based on ROCOCO SDD series

Key Features

4-channel SDD system for high count rates up to 4 Mcps with excellent energy resolution values
Ultra large solid angle values up to 1.8 sr
Highest sensitivity without shadowing effects in case of topologic samples
Integrated power supply box for providing SDD bias voltages, temperature control and synchronous reset operation of all 4 channels
Integrated water-cooling circuit to be easily connected to a common water chiller
Available in customized configurations for applications such as Nanoprobe XRF at synchrotron facilities, PIXE, ED-XRD, EDX in Electron Microscopy

ROCOCO - Detector Setup

Solid angle plotted against the distance between sample and detector chip for both Rococo2 and Rococo3

Energy resolution versus processing time measured with all 4 channels of Rococo2 detector

Resolution as a function of processing time for both Rococo2 and Rococo3

SEM EDX elemental mapping of iron and kaolinite powder on carbon – almost shadowless by using the different channels

ROCOCO Preamplifier Module

ROCOCO Preamplifier Module Dimensions

ROCOCO System with vacuum flange and supply unit – Dimensions

ROCOCO Preamplifier Module Dimensions

System options:

Light-tight version of the detector head with Beryllium window for applications in presence of stray light
Manual insertion/retraction mechanism with accurate positioning in XYZ directions
Customized vacuum flange, vacuum bellows and linear feedthrough
4-channel Digital Pulse Processor unit for fast and accurate spectra acquisition