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LEARN@Duke -- Analytical Facilities
   

Gamma Spectrometer

Gamma Spectrometer
Canberra high resolution Broad Energy germanium (BEGe) detector (BE5030) with 50% relative efficiency equipped with ultra low background hardware, an In Situ Object Counting System (ISOCS), mathematical calibration software, and Genie 2000 Multi-Input software.

Alpha Counters

 

Delayed coincidence alpha counters
Two scintillation alpha counters (made by Scientific Computer Instruments, West Columbia, SC) for measuring the activities of  224Ra and 223Ra isotopes.

Radon Monitor

 

Radon monitor (RAD7)

Other available analytical facilities

ICP-MS
VG PlasmaQuad-3 inductively-coupled-plasma mass-spectrometer (ICP-MS)
equipped with the S-option pump for increased sensitivity and a UV laser-ablation
microprobe for spot analyses to 6 microns (for ultra-trace-element spot analyses in the
ppb levels). Detection with peak:blank ratios of better than 3:1 has been demonstrated
down to 1 ppt of better for heavier elements (mass greater than 80) and 5 ppt for most
lighter elements.  

DCP
ARL-Fisons Spectraspan 7 direct current plasma (DCP) spectrometer with a 24
channel multi-element cassette for whole-rock major- and trace-element analysis (to ppm
levels). 

Ion Chromatograph