A tube-excited x-ray fluorescence spectrometer for use in small-diameter boreholes

Conference · Sat Apr 01 00:00:00 EST 1995

OSTI ID:64220

Reeves, J H; Arthur, R J; Brodzinski, R L; Shepard, C L

A portable in-situ x-ray fluorescence analytical system that uses an x-ray tube excitation source and a cooled Si(Li) spectrometer for detecting characteristic emission x rays has been developed for use in small-diameter wells and boreholes. The 15-watt, iron-anode x-ray tube operates up to 30 kV. Three wells at the Sandia National Laboratory Chemical Waste Landfill, lined with 76 {mu} thick polyethylene, were logged specifically for Cr contamination. Detection limits below 50 ppM were achieved with counting intervals of 600 seconds and with the Si(Li) detector operating at 450-eV resolution (full width at half maximum [FWHM] for the Mn K-alpha x ray).

• Research Organization: Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC06-76RL01830
• OSTI ID: 64220
• Report Number(s): PNL-SA-23193; CONF-940401-17; ON: DE95011411
• Resource Relation: Conference: International conference on methods and applications of radioanalytical chemistry, Kona, HI (United States), 10-16 Apr 1994; Other Information: PBD: Apr 1995
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
44 INSTRUMENTATION
INCLUDING NUCLEAR AND PARTICLE DETECTORS
SOILS
X-RAY FLUORESCENCE ANALYSIS
SEDIMENTS
SPECTROMETERS
DESIGN
BOREHOLES
X-RAY SPECTROMETERS
CONTAMINATION
METALS
RADIATION DETECTORS
BATTELLE PACIFIC NORTHWEST LABORATORIES
CHROMIUM