Vortex Xray Detector

Vortex-60EX® - Silicon Drift X-Ray Detector Spectrometer

Name Silicon Drift X-Ray Detector Spectrometer
Type Vortex-60EX®
Overview Vortex-60EX® silicon drift X-ray detectors feature the largest active area single element detector (50 mm²) available of its kind. Vortex-EX® detectors are produced from high purity silicon using state- of-the-art CMOS production technology. They feature excellent energy resolution (<129 eV FWHM at Mn Ka is typical) and a high count rate capability (input rate >1 Mcps). At a very short peaking time of 0.25 μs, an output count rate of 600 kcps is achieved. A unique feature of these detectors is their ability to process high count rates with virtually zero loss in energy resolution and no peak shift with count rate.

The Vortex-EX® is operated at near room temperature and cooled by a thermoelectric cooler (TEC) and can be cycled as frequently as needed without any degradation in detector performance. Cool down times are typically less than 3 minutes.

The Vortex-60EX® X-ray spectroscopy system includes a detector unit and control box, which includes power supplies for the detector and TEC, a digital pulse processor with PI-SPEC Software.

The complete detector also contains a charge-sensitive preamplifier and temperature stabilization system, which eliminates concerns of varying ambient temperature.

Click here for a PDF of the Vortex-60EX Specifications.
Typical Applications
  • X-ray fluorescence (XRF) spectroscopy – both bulk and micro-fluorescence
  • X-ray diffraction (XRD) and fluorescence (XRF)
  • Synchrotron radiation applications
  • Process control
Features
  • 60 mm Probe
  • Large area, single-element silicon drift detector (50 mm²)
  • Superb energy resolution
  • Detector temperature stabilization
  • Additional sizes are available under special contracts
  • Small and compact package for minimum vibration
  • Digital pulse processor (DPP) with PI-SPEC Software
US Patent Number:
  • 6,455,858
  • 7,129,501 B2

Specifications

Detector: Material – Silicon
Active Area – 50 mm² (nominal)
Thickness – 350 μm (nominal)
Window: Material – Beryllium
Thickness – 12.5 and 25 μm (alternatives available)
Energy Resolution
(FWHM) @ 5.9 keV:		 @ 12 μs Peaking Time - <133 eV Typical, 140 eV Maximum
@ 4 μs Peaking Time - <145 eV Typical, 150 eV Maximum
@ 1 μs Peaking Time - <165 eV Typical, 178 eV Maximum
@ 0.25 μs Peaking Time - <230 eV Typical, 250 eV Maximum
Preamplifier: Type – Charge sensitive, 1.6 mV/keV
Signal polarity – Positive
Reset – Electrical, <1 μs duration
Rise time – <100 ns
Cooling Thermoelectric
Power Consumption: Nominal voltage – 110/230 V (switchable)
Power supply and detector – 40 W Maximum
Physical Specifications: Detector package weight – 900 g Length – 227 mm (60 mm probe) Height x Width – 62 mm x 62 mm Cable Standard Length – 3 m
Digital Pulse Processor (DPP): PI-SPEC Software
Digital Controls: Gain – 16-Bit DAC
Peaking Time – 0.25 – 64 μs
Preset Time – Up to 1717s
Data Output: Spectrum Size – 1024, 2048, 4096 or 8192 channels
Channel Size – 10, 20 or 40 eV
Integral Non-linearity: 0.1% of full-scale output
Deadtime Correction: Better than ± 0.5% accuracy from 0 to 120,000 cps at 4 μs peaking time
Software: PI-SPEC software* – Allows user to acquire, manipulate spectra. Pentium III or later with 64 MB memory and 30 MB available disk space.

VTXDLL package* – Dynamic-Link Library to facilitate host software communication with the DPP. Pentium III or later with 64 MB memory and 30 MB available disk space.

*Requires a standard USB2.0 port

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