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silicon drift detector (sdd)

NEW!!! Silicon Drift Detector (SDD)
Low Cost

Amptek Does It Again

silicon drift detector (sdd) 55fe spectrum
Figure 1. 55Fe Spectrum with silicon drift detector (SDD).

Features

  • HIGH COUNT RATE - 500,000 CPS
  • 139 eV FWHM Resolution @ 5.9 keV
  • High Peak-to-Background Ratio - 6500:1
  • 7 mm2 X 500 µm
  • No Liquid Nitrogen

Applications

  • X-Ray Fluorescence
  • RoHS/WEE compliance XRF
  • OEM & Special Applications
  • Process Control
  • Research
  • Environmental and Nuclear Plant Monitoring

Performance

  • 139 eV FWHM Resolution @ 5.9 keV
  • 9.6 µs Peaking Time
  • 100,000 CPS
  • Peak-to-Background Ratio - 6500:1

Not fast enough? Try...

  • 190 eV FWHM Resolution @ 5.9 keV
  • 0.8 µs Peaking Time
  • 500,000 CPS

Now that's XRF!

 silicon drift detector (sdd) oem applications

silicon drift detector xr100
Silicon Drift Detector in the XR100 and PX4.

silicon drift detector X-123
Silicon Drift Detector in the X-123 Spectrometer.

The XR-100SDD Silicon Drift Detector (SDD) is Amptek's latest addition to its line of x-ray detectors that revolutionized the industry. Its high performance, small size, and low cost make it the ideal detector for OEM hand-held applications to bench-top analyzers. The silicon drift detector (SDD) enables extremely high count rate applications with excellent energy resolution. The detector is housed inside the same TO-8 package as Amptek's other detectors, so its form-factor is a direct replacement for current systems.

resolution vs. peaking time for silicon drift detector
Figure 2. Resolution vs. Peaking Time for the silicon drift detector (SDD).

throughput, input vs. output count rate for silicon drift detector
Figure 3. Throuhgput with the silicon drift detector (SDD).

NOTE

The silicon drift detector (SDD) requires negative high voltage and produces a positive preamplifier output. This is the opposite of the standard Si-PIN which requires positive high voltage and produces a negative preamplifier output.

When ordered in an XR100SDD/PX4 configuration, the PX4 is equipped with a negative high voltage supply. This PX4 can therefore only be used with an XR100SDD detector. Using a Si-PIN XR100CR with a negative high voltage PX4 will destroy the Si-PIN XR100CR and will not be covered under warranty. Using an XR100SDD with a PX4 equipped with positive high voltage intended for a Si-PIN XR100CR will destroy the silicon drift detector (SDD) detector and not be covered under warranty.

Silicon Drift Detector (SDD) specifications in PDF format.

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Revised March 12, 2008