SCIENTIFIC AND TECHNICAL AEROSPACE REPORTS

A Biweekly Publication of the National Aeronautics and Space Administration
VOLUME 44, ISSUE 10 - MAY 19, 2006

09 RESEARCH AND SUPPORT FACILITIES (AIR)
Includes airports, runways, hangars, and aircraft repair and overhaul facilities; wind tunnels, water tunnels, and shock tubes; flight simulators; and aircraft engine test stands.

Also includes airport ground equipment and systems.

For airport ground operations see 03 Air Transportation and Safety.

For astronautical facilities see 14 Ground Support Systems and Facilities (Space).

20060013042 Tetra Tech Environmental Management, Inc., Cincinnati, OH, USA

XRF Technologies for Measuring Trace Elements in Soil and Sediment: Xcalibur ElvaX XRF Analyzer. Innovative Technology Verification Report

Apr. 2006; 202 pp.; In English Report No.(s): PB2006-109028; No Copyright; Avail.: CASI: A10, Hardcopy

The Elvatech, Ltd. ElvaX (ElvaX) x-ray fluorescence (XRF) analyzer distributed in the USA by Xcalibur XRF Services (Xcalibur), was demonstrated under the U.S. Environmental Protection Agency (EPA) Superfund Innovative Technology Evaluation (SITE) Program. The field portion of the demonstration was conducted in January 2005 at the Kennedy Athletic, Recreational and Social Park (KARS) at Kennedy Space Center on Merritt Island, Florida. The demonstration was designed to collect reliable performance and cost data for the ElvaX analyzer and seven other commercially available XRF instruments for measuring trace elements in soil and sediment. The performance and cost data were evaluated to document the relative performance of each XRF instrument. This innovative technology verification report describes the objectives and the results of that evaluation and serves to verify the performance and cost of the ElvaX analyzer. Separate reports have been prepared for the other XRF instruments that were evaluated as part of the demonstration. The objectives of the evaluation included determining each XRF instrument's accuracy, precision, sample throughput, and tendency for matrix effects. To fulfill these objectives, the field demonstration incorporated the analysis of 326 prepared samples of soil and sediment that contained 13 target elements. NTIS

Soils; Trace Elements; X Ray Fluorescence

Source: NASA