Laboratory for XRF Element Scanning

Samples

  • Split core sections up to 180 cm length and diameters between 6 and 12 cm

Analyses

  • XRF system for non-destructive and continuous element records (Al through to Ba; 0.2 mm resolution)
  • Line-scan camera for optical imaging and RGB recording
  • X-ray camera and imaging

Technical specifications

  • Cr (1.9 kW) or Mo (3 kW) X-ray tube
  • Flat-beam wave guide to focus the X-ray beam onto the sample surface (rectangular spot area 0.2 x 22 mm)
  • Peltier cooled Si-drift-detector and digital MCA (throughput 300x103 cps)
  • more

Samples

  • Polished and epoxy-embedded sediment samples, thick-sections and speleothem samples (sample stage 20 x 17 cm)

Analyses

  • XRF system for ultra-high resolved element records and mapping (Na through to Ba; 20 µm)
  • Optical imaging

Technical specifications

  • Sample chamber (stage 20 x 17 cm) for analysis under vacuum
  • Low power X-ray tube (Rh anode, max. power 0.03 kW)
  • Capillar lens (VariSpot) for focusing the primary X-ray beam (spot size 20 µm)
  • Dual 30 mm2 Si-Drift Detector (throughput 300x103 cps each)
  • more

Samples

  • Polished and epoxy-embedded sediment samples, thick-sections and speleothem samples (sample stage 30 x 30 cm)

Analyses

  • XRF system for ultra-high resolved element records (Mg through to Ba; 50-250 µm)

Technical specifications

  • XL sample chamber for analysis under vacuum
  • low power X-ray tube (Rh anode, max. power 40 W)
  • Capillar lens (VariSpot) for focusing the primary X-ray beam (spot size 50 - 400 µm)
  • Si-Li semiconductor detector (LN2 cooled)
  • Two cameras (magnification ten- and hundred fold) for sampling site viewing
  • EDAX vision software

Samples

  • Split core sections up to 160 cm length

Analyses

  • Optical line-scanning of spit core samples with separate RGB sensors
  • UV-luminescence scanning of carbonate samples (e.g. speleothem, coral)

Technical specifications

  • Image resolution of 1500 dpi (width 68 mm)
  • Low speed scanning with high focal depth range
  • more

Contact

Rik Tjallingii
Scientist
Dr. Rik Tjallingii
Climate Dynamics and Landscape Evolution
Telegrafenberg
Building C , Room 326
14473 Potsdam
+49 331 288-1438
Profile