Historians at Work in the SLAC Archives: An Archivist's Perspective (open access)

Historians at Work in the SLAC Archives: An Archivist's Perspective

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Date: July 29, 2013
Creator: Deken, Jean Marie
Object Type: Article
System: The UNT Digital Library
Judging Edward Teller: A Closer Look at One of the Most Influential Scientists of the Twentieth Century (open access)

Judging Edward Teller: A Closer Look at One of the Most Influential Scientists of the Twentieth Century

Much has been written about Edward TEller, but little of it is objective. Given, on the one hand, his position as one of the most inventive theoretical physicists of the 20th century, and on the other, his central role in the development and advocacy of thermonuclear weapons, one might imagine it impossible at this point in history to write a scholarly, impartial account of Teller's life and his impact. Now, however, Istvan Hargittai, a prominent Hungarian physical chemist and historian of science, has written a balanced, thoughtful, and beautifully research biography that comes closest. Hargittai is uniquely qualified for this difficult task. Coming a generation and a half later from a similar Hungarian-Jewish background, Hargittai understands well the influences and terrible events that shaped Teller. The advent of virulent, political anti-Semitism, first in Hungary and then in Germany, made Teller twice a refugee. Both Teller and Hargittai lost close family in the Holocaust; Hargittai was himself liberated from a Nazi concentration camp as a child. While Teller was in the US by then, his and Hargittai's surviving family members in Hungary suffered mistreatment at the hands of the postwar Hungarian Communist dictatorship. Hargittai's informed Eastern European perspective also provides a …
Date: December 29, 2010
Creator: Libby, S B
Object Type: Article
System: The UNT Digital Library
Environmental Effects of Sediment Transport Alteration and Impacts on Protected Species: Edgartown Tidal Energy Project (open access)

Environmental Effects of Sediment Transport Alteration and Impacts on Protected Species: Edgartown Tidal Energy Project

The Islands of Martha’s Vineyard and Nantucket are separated from the Massachusetts mainland by Vineyard and Nantucket Sounds; water between the two islands flows through Muskeget Channel. The towns of Edgartown (on Martha’s Vineyard) and Nantucket recognize that they are vulnerable to power supply interruptions due to their position at the end of the power grid, and due to sea level rise and other consequences of climate change. The tidal energy flowing through Muskeget Channel has been identified by the Electric Power Research Institute as the strongest tidal resource in Massachusetts waters. The Town of Edgartown proposes to develop an initial 5 MW (nameplate) tidal energy project in Muskeget Channel. The project will consist of 14 tidal turbines with 13 providing electricity to Edgartown and one operated by the University of Massachusetts at Dartmouth for research and development. Each turbine will be 90 feet long and 50 feet high. The electricity will be brought to shore by a submarine cable buried 8 feet below the seabed surface which will landfall in Edgartown either on Chappaquiddack or at Katama. Muskeget Channel is located between Martha’s Vineyard and Nantucket. Its depth ranges between 40 and 160 feet in the deepest portion. It …
Date: December 29, 2012
Creator: Barrett, Stephen B.; Schlezinger, David; Cowles, Geoff; Hughes, Patricia; Samimy; Roland, I. et al.
Object Type: Report
System: The UNT Digital Library
University of Arizona High Energy Physics Program: Final Report (open access)

University of Arizona High Energy Physics Program: Final Report

The High Energy Physics Group at the University of Arizona has conducted forefront research in elementary particle physics. Our theorists have developed new ideas in lattice QCD, SUSY phenomenology, string theory phenomenology, extra spatial dimensions, dark matter, and neutrino astrophysics. The experimentalists produced significant physics results on the ATLAS experiment at CERN's Large Hadron Collider and on the D0 experiment at the Fermilab Tevatron. In addition, the experimentalists were leaders in detector development and construction, and on service roles in these experiments.
Date: July 29, 2013
Creator: Rutherfoord, John P.; Johns, Kenneth A.; Shupe, Michael A.; Cheu, Elliott C.; Varnes, Erich W.; Dienes, Keith et al.
Object Type: Report
System: The UNT Digital Library
Final Report for "Experimental Petrology and Chemistry of Volatile-Bearing Silicate Melts" (open access)

Final Report for "Experimental Petrology and Chemistry of Volatile-Bearing Silicate Melts"

The goal of Part 1 was the definitive determination of the dependence of the diffusion coefficient for water (DH2O, defined as the diffusion coefficient of total water) in various compositions of silicate melts with respect to water content (CH2O). We measured profiles of CH2O in hydration and diffusion couple experiments by Fourier transform infrared spectroscopy and secondary ion mass spectrometry. DH2O values were determined from the profiles using both direct calculations (Boltzmann-Matano methods) and models assuming specific relationships between DH2O and CH2O (including constant, proportional, and exponential relationships, and a simple speciation model assuming that water molecules are mobile (with constant diffusivity) and hydroxyl groups are immobile). As expected, the constant DH2O model was never the best fit to our diffusion profile data. In order to distinguish among the models with varying diffusion coefficients, all of which require increasing DH2O with increasing CH2O, we ran a series of experiments with small ranges of CH2O, so that we could assume that DH2O was constant. If either the proportional or speciation model holds, then DH2O = 0 at CH2O = 0, whereas the exponential model predicts a finite value for DH2O at CH2O = 0. Results for haplobasalt and haploandesite compositions are …
Date: March 29, 2013
Creator: Stolper, Edward M.
Object Type: Report
System: The UNT Digital Library
Closure Report for Corrective Action Unit 116: Area 25 Test Cell C Facility, Nevada National Security Site, Nevada (open access)

Closure Report for Corrective Action Unit 116: Area 25 Test Cell C Facility, Nevada National Security Site, Nevada

This Closure Report (CR) presents information supporting closure of Corrective Action Unit (CAU) 116, Area 25 Test Cell C Facility. This CR complies with the requirements of the Federal Facility Agreement and Consent Order (FFACO) that was agreed to by the State of Nevada; the U.S. Department of Energy (DOE), Environmental Management; the U.S. Department of Defense; and DOE, Legacy Management (FFACO, 1996 [as amended March 2010]). CAU 116 consists of the following two Corrective Action Sites (CASs), located in Area 25 of the Nevada National Security Site: (1) CAS 25-23-20, Nuclear Furnace Piping and (2) CAS 25-41-05, Test Cell C Facility. CAS 25-41-05 consisted of Building 3210 and the attached concrete shield wall. CAS 25-23-20 consisted of the nuclear furnace piping and tanks. Closure activities began in January 2007 and were completed in August 2011. Activities were conducted according to Revision 1 of the Streamlined Approach for Environmental Restoration Plan for CAU 116 (U.S. Department of Energy, National Nuclear Security Administration Nevada Site Office [NNSA/NSO], 2008). This CR provides documentation supporting the completed corrective actions and provides data confirming that closure objectives for CAU 116 were met. Site characterization data and process knowledge indicated that surface areas were radiologically …
Date: September 29, 2011
Creator: National Security Technologies, LLC
Object Type: Report
System: The UNT Digital Library