Issue 10 Volume 41 May 16, 2003

lends and the effect of higher ethanol blends on current systems. A full account of the key issues and conclusions and
recommendations pertaining to blends in general (ranging from E10-E85), are presented in the Summary, Conclusions, and
Recommendations sections. The purpose of this Executive Summary, however, is to focus on key conclusions related to the
use of higher ethanol blends. The following are the key conclusions reached in this report.
NTIS
Fuels; Ethyl Alcohol; Mixtures
20030037059 Clark Atlanta Univ., GA
Study of the Effects of Ambient Conditions Upon the Performance of Fan Powered, Infrared, Natural Bas Burners
Dec. 2002; 68 pp.; In English
Report No.(s): DE2002-805233; No Copyright; Avail: Department of Energy Information Bridge
The final report describes work performed under DOE Grant No. DE-FG22-94MT94011 during the period September 1,
1994 to May 28, 1997. The objective of this investigation is to characterize the operation of a fan-powered, infrared burner
(IR burner) at various gas compositions and ambient conditions, develop numerical model to simulate the burner
performances, and provide design guidelines for appliances containing PIR burners for satisfactory performance.
NTIS
Natural Gas; Burners; Ambient Temperature
20030037100 Westinghouse Savannah River Co., Aiken, SC
Behavior of Pu and Gd Mixtures Under Simulated SRAT Conditions (U)
Bibler, N. E.; Bronikowski, M. G.; Gray, J. H.; Hill, B. C.; May 13, 2002; 40 pp.
Report No.(s): DE2002-805603; No Copyright; Avail: Department of Energy Information Bridge
A mechanism was found for separating Pu from Gd in the SRAT cycle. The separation could not be spatially quantified
by SEM due to being at or below the LOD of the method. From solubility only 2.6\% of the Gd is solubilized at normal SRAT
conditions. Pu solubility, as expected, is very low, ranging from 0.32\% to 10\% in the bounding conditions studied. The Gd
solubility appears to be dependent on the relative amount of the more soluble sludge components. In the pH and concentration
range studied here, the amount of Gd that is solubilized ranges from 13\% to 47\% with sludge and essentially 100\% in the
absence of sludge.
NTIS
Sludge; Tanks (Containers); Waste Management; Radioactive Wastes
20030037129 National Inst. of Standards and Technology, Gaithersburg, MD, Laboratoire de Mineralogie-Cristallographie,
Paris (France)
X-Ray-Absorption Edge Separation Using Diffraction Anomalous Fine-Structure
Ravel, B.; Bouldin, C. E.; Renevier, H.; Hodeau, J. L.; Berar, J. F.; Dec. 24, 1998; 14 pp.; In English
Report No.(s): PB2003-102684; No Copyright; Avail: CASI; A03, Hardcopy
When two or more absorption edges in a material are sufficiently close in energy, Extended X-ray Absorption
Fine-Structure (EXAFS) spectroscopy is of limited utility as the usable data range above the lower energy edge is truncated
by the higher energy edge. Energy or wavelength discriminating detection methods may fail to resolve fluorescence lines
which are very close in energy. In this paper we present a novel solution to this problem using the resolution in momentum
transfer of Diffraction Anomalous Fine-Structure (DAFS) to separate the fine structure signals from elements with closely
spaced fluorescence lines. We demonstrate our technique by isolating the titanium edge signal from DAFS measurements.
NTIS
Diffraction; Fine Structure; X Ray Absorption; Anomalies; X Ray Spectroscopy
20030037168 Lawrence Livermore National Lab., Livermore, CA
Shock Induced Birefringence in Lithium Fluoride
Nguyen, J. H.; Holmes, N. C.; Jun. 01, 2001; In English
Report No.(s): DE2002-15002087; UCRL-JC-145221; No Copyright; Avail: National Technical Information Service (NTIS)
We have used an ellipsometer to measure the birefringence of lithium fluoride in shock compression experiments. In
previous x-ray diffraction experiments, single crystal has been reported to remain cubic at moderate pressures.
NTIS
Birefringence; Ellipsometers; Lithium Fluorides; Shock Loads
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