Evaluation of HgI[sub 2] detectors for lead detection in paint

Conference · Sun Aug 01 00:00:00 EDT 1993 · IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (United States)

OSTI ID:5970812

Wang, Y J; Iwanczyk, J S; Graham, W R ^[1]

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1. Xsirius, Inc., Marina del Rey, CA (United States)

The authors conducted a laboratory study of HgI[sub 2] spectrometers used for in-situ determination of lead on painted surfaces. [sup 109]Cd and [sup 57]Co isotopes have been used to excite lead characteristic x-rays from samples. The energy resolution of HgI[sub 2] detectors in the energy region corresponding to lead K x-rays has been measured. An energy resolution of 880 eV (FWHM) for the 60 keV line from an [sup 241]Am source has been obtained. Measurements using thin film standards ranging from 0.5 mg Pb/cm[sup 2] to 2 mg Pb/cm[sup 2] have been conducted. Detection limits, accuracy and precision of the measurements have been estimated. Based upon a comparison of the results that the authors have obtained with the performance of existing detector technology, the HgI[sub 2] detectors seem to be the best solution for handheld XRF lead analyzers.

• OSTI ID: 5970812
• Report Number(s): CONF-921005-; CODEN: IETNAE
• Journal Information: IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (United States), Vol. 40:4 part 1; Conference: Institute of Electrical and Electronic Engineers (IEEE) nuclear science symposium and medical imaging conference, Orlando, FL (United States), 25-31 Oct 1992; ISSN 0018-9499
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
HGI2 SEMICONDUCTOR DETECTORS
PERFORMANCE
LEAD
X-RAY FLUORESCENCE ANALYSIS
PAINTS
CHEMICAL ANALYSIS
CADMIUM 109
COBALT 57
ENERGY RESOLUTION
EVALUATION
BETA DECAY RADIOISOTOPES
CADMIUM ISOTOPES
COATINGS
COBALT ISOTOPES
DAYS LIVING RADIOISOTOPES
ELECTRON CAPTURE RADIOISOTOPES
ELEMENTS
EVEN-ODD NUCLEI
INTERMEDIATE MASS NUCLEI
ISOTOPES
MEASURING INSTRUMENTS
METALS
NONDESTRUCTIVE ANALYSIS
NUCLEI
ODD-EVEN NUCLEI
RADIATION DETECTORS
RADIOISOTOPES
RESOLUTION
SEMICONDUCTOR DETECTORS
X-RAY EMISSION ANALYSIS
YEARS LIVING RADIOISOTOPES
400101* - Activation
Nuclear Reaction
Radiometric & Radiochemical Procedures
440101 - Radiation Instrumentation- General Detectors or Monitors & Radiometric Instruments