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
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4-channel SDD system for high count rates up to 4 Mcps with excellent energy resolution values
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Ultra large solid angle values up to 1.8 sr
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Highest sensitivity without shadowing effects in case of topologic samples
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Integrated power supply box for providing SDD bias voltages, temperature control and synchronous reset operation of all 4 channels
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Integrated water-cooling circuit to be easily connected to a common water chiller
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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:
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Light-tight version of the detector head with Beryllium window for applications in presence of stray light
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Manual insertion/retraction mechanism with accurate positioning in XYZ directions
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Customized vacuum flange, vacuum bellows and linear feedthrough
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4-channel Digital Pulse Processor unit for fast and accurate spectra acquisition

Rococo XRU

ROCOCO System with Retractable Vacuum Feed Through and Supply Unit