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70 mm² FAST SDD®

This is the true State-of-the-Art!

Amptek has developed a 70 mm² FAST SDD® Detector in a TO-8 package. This is the same package that is used with all Amptek detectors. This makes the 70 mm² a drop in replacement (same package, same pin-out, same voltages). Triple the count rate vs. the 25 mm² SDD with the same performance.

Features
  • 70 mm² active area collimated to 50 mm²
  • 123 eV FWHM resolution at 5.9 keV
  • Count rates > 2,000,000 CPS
  • High peak-to-background ratio – 26,000/1
  • Preamplifier Output Rise Time <60 ns
  • Windows: Be (0.5 mil) 12.5 µm, or C2 (Si3N4)
  • Radiation hard
  • Detector thickness 500 µm
  • TO-8 Package
  • Cooling ΔT>85 K
  • Multilayer Collimator
Applications
  • Ultra-fast benchtop and handheld XRF analyzers
  • Scanning/mapping of samples in an SEM as part of an EDS system
  • On-line process control
  • X-Ray Sorting Machines
  • OEM

  • Performance +


    Figure 3. Resolution vs. peaking time at different detector temperatures.

    Figure 4. Carbon spectrum taken with the 70 mm² FAST SDD® and a C2 window in an SEM.

  • 70 mm² FAST SDD® Specifications +


    General
    Detector Type Silicon Drift Detector (SDD)
    Detector Size 70 mm2 - collimated to 50 mm2
    Silicon Thickness 500 µm
    Collimator Internal Multi Layer Collimator (ML)
    Energy Resolution @ 5.9 keV (55Fe) 123 - 135 eV FWHM at 4 µs peaking time
    Peak to Background 20,000:1 (ratio of counts from 5.9 keV to 1 keV) (typical)
    Detector Window Options 0.5 mil (12.5 µm) Be or C2 (Si3N4)
    Charge Sensitive Preamplifier CMOS
    Gain Stability <20 ppm/°C (typical)
    XR-100FastSDD Case Size 3.00 x 1.75 x 1.13 in (7.6 x 4.4 x 2.9 cm)
    XR-100FastSDD Weight 4.4 ounces (125 g)
    Total Power <2 Watt
    Warranty Period 1 Year
    Typical Device Lifetime 5 to 10 years, depending on use
    Operation conditions -35°C to +80°C
    Storage and Shipping Long term storage: 10+ years in dry environment
    Typical Storage and Shipping: -40°C to +85°C, 10 to 90% humidity non condensing
    TUV Certification
    Certificate #: CU 72072412 02
    Tested to: UL 61010-1: 2004 R7 .05
    CAN/CSA-C22.2 61010-1: 2004
    Inputs
    Preamp Power XR100 configuration: ±8 V @ 15 mA with no more than 50 mV peak-to-peak noise
    OEM configuration (PA210/230 or X-123): ±5 V
    Detector Power -100 to -180 V @ 25 µA very stable <0.1% variation
    Cooler Power Current = 450 mA maximum, voltage = 3.5 V maximum with <100 mV peak-to-peak noise
    Note: the XR-100FASTSDD includes its own temperature controller
    Outputs
    Preamplifier Sensitivity 3.6 mV/keV typical (may vary for different detectors)
    Preamplifier Polarity Positive signal output (1 kohm maximum load)
    Preamplifier Output Rise Time <60 ns
    Preamplifier Feedback Reset
    Temperature Monitor Sensitivity Varies with configuration
    When used with PX5, DP5, or X-123: direct reading in Kelvin through software.

  • Configurations & Options +


    The 70 mm2 FAST SDD is available with the standard Amptek options and OEM configurations.

    • XR100FASTSDD with PX5
    • X-123FASTSDD
    • OEM Configurations
    • Vacuum Applications
    The XR-100FAST SDD-70 with the PX5 The FAST SDD-70 with its preamplifier is available in several OEM configurations The X-123FAST SDD-70 configuration includes the detector, preamplifier, digital processor and power supplies all in one box The 70 mm2 FAST SDD is compatible with all Amptek vacuum accessories

  • Mechanicals +


    • All dimensions in inches unless otherwise specified.
    • All dimensions are “typical” unless a tolerance is listed.
    • NOTE for C2 window: A nickel washer is mounted on the front surface to provide additional protection.

    TO-8 STP File

    Detector Type Area/Thickness Rdet (mm) Adet (mm2) Rcoll (mm) Acoll (mm2) Lcoll (mm) Ldet (mm) Rwin (mm) Rwasher (mm)
    70 mm2 Be window 70 mm2/500 µm 4.72 70 mm2 4.00 50.27 0.9 1.4 4.50 –
    70 mm2 C2 window 70 mm2/500 µm 4.72 70 mm2 4.00 50.27 0.9 1.4 4.00 4.24

  • Documentation +