Search Results

Advanced search parameters have been applied.
open access

Extremely NA and CL Rich Chondrule AL3509 from the Allende Meteorite

Description: We report on the mineralogy, petrology, chemistry, oxygen isotopes, {sup 26}Al-{sup 26}Mg and {sup 36}Cl-{sup 36}S isotope systematics of the Allende chondrule Al3509 discovered and described by [1] and [2]. This spherical object ({approx}1cm {phi}) contains {approx}10% Na and 1% Cl, and nearly pure {sup 129}Xe [({sup 129}Xe/{sup 127}I) = 1.1 x 10{sup -4} (3)]. This high enrichment in halogens makes it of interest in searching for radiogenic {sup 36}S from {sup 36}Cl (t{sub 1/2} {approx} 0.3 Ma… more
Date: April 7, 2011
Creator: Wasserburg, G J; Hutcheon, I D; Aleon, J; Ramon, E C; Krot, A N; Nagashima, K et al.
Partner: UNT Libraries Government Documents Department
open access

Summary of Uranium Solubility Studies in Concrete Waste Forms and Vadose Zone Environments

Description: One of the methods being considered for safely disposing of Category 3 low-level radioactive wastes is to encase the waste in concrete. Concrete encasement would contain and isolate the waste packages from the hydrologic environment and act as an intrusion barrier. The current plan for waste isolation consists of stacking low-level waste packages on a trench floor, surrounding the stacks with reinforced steel, and encasing these packages in concrete. These concrete-encased waste stacks are expe… more
Date: September 30, 2011
Creator: Golovich, Elizabeth C.; Wellman, Dawn M.; Serne, R. Jeffrey & Bovaird, Chase C.
Partner: UNT Libraries Government Documents Department
open access

Summary Report: Glass-Ceramic Waste Forms for Combined Fission Products

Description: Glass-ceramic waste form development began in FY 2010 examining two combined waste stream options: (1) alkaline earth (CS) + lanthanide (Ln), and (2) + transition metal (TM) fission-product waste streams generated by the uranium extraction (UREX+) separations process. Glass-ceramics were successfully developed for both options however; Option 2 was selected over Option 1, at the conclusion of 2010, because Option 2 immobilized all three waste streams with only a minimal decrease in waste loadin… more
Date: September 23, 2011
Creator: Crum, Jarrod V.; Riley, Brian J.; Turo, Laura A.; Tang, Ming & Kossoy, Anna
Partner: UNT Libraries Government Documents Department
Back to Top of Screen