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open access

REDUCTION AND SEQUESTRATION OF PERTECHNETATE TO TECHNETIUM DIOXIDE AND PROTECTION FROM RE-OXIDATION

Description: This effort is part of the technetium management initiative and provides data for the handling and disposition of technetium. To that end, the objective of this effort was to challenge tin(II)apatite (Sn(II)apatite) against double-shell tank 241-AN-I0S simulant spiked with pertechnetate (TcO{sub 4}{sup -}). The Sn(II)apatite used in this effort was synthesized on site using a recipe developed at and provided by Sandia National Laboratories; the synthesis provides a high quality product while re… more
Date: July 11, 2012
Creator: JB, DUNCAN; JM, JOHNSON; WP, MOORE; KJ, HAGERTY; RN, RHODES & RC, MOORE
Partner: UNT Libraries Government Documents Department
open access

A tandem-based compact dual-energy gamma generator

Description: A dual-energy tandem-type gamma generator has been developed at E.O. Lawrence Berkeley National Laboratory and Sandia National Laboratories. The tandem accelerator geometry allows higher energy nuclear reactions to be reached, thereby allowing more flexible generation of MeV-energy gammas for active interrogation applications.
Date: November 11, 2009
Creator: Persaud, A.; Kwan, J. W.; Leitner, M.; Leung, K. N.; Ludewigt, B.; Tanaka, N. et al.
Partner: UNT Libraries Government Documents Department
open access

Application of Knowledge Management: Pressing questions and practical answers

Description: Sandia National Laboratory are working on ways to increase production using Knowledge Management. Knowledge Management is: finding ways to create, identify, capture, and distribute organizational knowledge to the people who need it; to help information and knowledge flow to the right people at the right time so they can act more efficiently and effectively; recognizing, documenting and distributing explicit knowledge (explicit knowledge is quantifiable and definable, it makes up reports, manual… more
Date: February 11, 2000
Creator: Fromm-Lewis, Michelle
Partner: UNT Libraries Government Documents Department
open access

Initial generation and separation of {sup 99}Mo at Sandia National Laboratories

Description: Medical isotopes play an important role in the medical industry in both the United States and the world. Isotopes such as {sup 99}Tc, {sup 201}Tl, {sup 111}In, and {sup 123}I are utilized in diagnostic imaging studies, while others such as {sup 131}I and {sup 89}Sr are used as therapeutic agents. The particular medical isotope {sup 99m}Tc is used in 80% of all nuclear medical procedures in the United States. This isotope is produced from the decay of {sup 99}Mo, which has a 66 hour half-life. T… more
Date: April 11, 1997
Creator: Talley, D.G.; Bourcier, S.C.; McDonald, M.J.; Longley, S.W. & Parma, E.J.
Partner: UNT Libraries Government Documents Department
open access

Module 30 year life: What does it mean and is it predictable-achievable?

Description: The authors define what they mean by a 30-year module life and the testing protocol that they believe is involved in achieving such a prediction. However, they do not believe that a universal test (or series of tests) will allow for such a prediction to be made. They can test for a lot of things, but they believe it is impossible to provide a 30-year certification for any PV module submitted for test. They explain their belief in this paper.
Date: April 11, 2000
Creator: Mcmahon, T. J.; Jorgensen, G. J.; Hulstrom, R. L.; King, David L. & Quintana, Michael A.
Partner: UNT Libraries Government Documents Department
open access

Sandia and the Waste Isolation Pilot Plant, 1974--1999

Description: Engineers have learned to design and build big projects, which certainly describes the WIPP project, but also includes defense projects, highway networks, space exploration, the Internet, etc., through what has been called a messily complex embracing of contradictions. When something massive and complicated has to be built these days, it leads to a protracted political process in which every special interest makes a stand, lobbyists exert what influence they can, lawmakers bicker, contractors c… more
Date: April 11, 2000
Creator: MORA,CARL J.
Partner: UNT Libraries Government Documents Department
open access

Improved PV system reliability results from surge evaluations at Sandia National Laboratories

Description: Electrical surges on ac and dc inverter power wiring and diagnostic cables have the potential to shorten the lifetime of power electronics. These surges may be caused by either nearby lightning or capacitor switching transients. This paper contains a description of ongoing surge evaluations of PV power electronics and surge mitigation hardware at Sandia.
Date: April 11, 2000
Creator: Bonn, Russell H. & Gonzalez, Sigifredo
Partner: UNT Libraries Government Documents Department
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