Racetrack SDDs
Racetrack SDDs: For large solid angle in Microanalysis in TEM
There is a limitation if only the active area of the SDD is increased. Therefore PNDetector invented the so called Racetrack chip structure. These SDDs make use of an oval shaped active area. Therefore, they can be placed extremely close to the sample even in applications where the available space is restricted. This leads to largely increased solid angles.
The Specific Oval Shaped SDD Series named Racetrack
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High resolution spectroscopy down to 126 eV @ Mn Kα, -30 °C
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Extreme close proximity to the sample with solid angles exceeding 1 sr
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Huge solid angles up to 2 sr are possible with dual configurations in TEM
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Mounted on a compact housing comprising non-magnetic materials
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Mostly used in “windowless” configuration – gives the highest detection efficiency for light elements
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EDX spectra of light-element samples measured in SEM with a windowless SDDplus-100 detector module operated at -45°C chip temperature
Energy resolution plotted against processing time measured with two different ´Racetrack SDDs´
Energy resolution plotted against processing time measured with an SDDplus-60 detector at various chip temperatures
Application of Racetrack SDDs - Increase in solid angle
The very compact housing allows the detector to be placed into very small spectrometer tubes
Select products
Select products description
SDDplus-60-128pnW Racetrack
60 mm² active area
127 eV FWHM @ Mn-Kα, −30 °C
51 eV FWHM @ C-K, -30 °C
> 15 000 P/B ratio
127 eV FWHM @ Mn-Kα, −30 °C
51 eV FWHM @ C-K, -30 °C
> 15 000 P/B ratio
Select products
Select products description
SDDplus-100-128pnW Racetrack
100 mm² active area
128 eV FWHM @ Mn-Kα, −30 °C
53 eV FWHM @ C-K, -30 °C
> 15 000 P/B ratio
128 eV FWHM @ Mn-Kα, −30 °C
53 eV FWHM @ C-K, -30 °C
> 15 000 P/B ratio