Search Results

open access

Efficiency pf Multiple Traversal Targets

Description: The efficiency of multiple traversal targets is defined as the probability that a proton dies by making a nuclear collision in the target rather than by hitting the limit of the synchrotron aperture. The efficiencies of Be, Al, Cu, and Pb targets are shown for 15 and 30-Bev protons in the Brooknaven AGS. Beryllium was found to be the most efficient. (M.C.G.)
Date: February 5, 1962
Creator: Courant, E.D.
Partner: UNT Libraries Government Documents Department
open access

KAPL-120-8A Test Assembly Thermocouple Failure.

Description: This document reports the circumstances surrounding the failure of sheathed thermocouples during a test being conducted in the KAPL-120 Loop. The report is prepared to provide a record of these events and to acquaint those who use these thermocouples for testing of other applications with the difficulties that are sometimes encountered.
Date: February 5, 1960
Creator: Dearing, F. E.
Partner: UNT Libraries Government Documents Department
open access

Evaluation of Fretting Corrosion of ZR-2

Description: Although the corrosion of resistance of Zircaloy--2 clad fuel elements in high temperature water is excellent, some concern has been expressed in regard to the resistance against fretting corrosion. Since this form of corrosion can proceed quite rapidly it could induce fuel element failure through penetration of the cladding. Fretting corrosion if it occurred, would take place either where the fuel element contacted the process tube or where portions of the fuel element contacted each other, e.… more
Date: February 5, 1960
Creator: Lobsinger, R. J.
Partner: UNT Libraries Government Documents Department
open access

Alpha Air Monitoring with [alpha]/[beta] Ratio Compensation for Natural Interference

Description: Abstract. Results are presented of a theoretical study to calculate the [alpha]/[beta] ratio of filter-collected natural airborne radioactivity. The detection of airborne plutonium contamination by noting increases in this [alpha]/[beta] ratio is discussed. A modification of this approach which provides a more uniform response to alpha airborne contamination is described.
Date: February 5, 1962
Creator: Lindeken, C. L. & Montan, Donald N.
Partner: UNT Libraries Government Documents Department
open access

Women's Suffrage Centennial Commission: Sixth Report to Congress and the President

Description: Report from the Women's Suffrage Centennial Commission providing an update about their work as well as summaries of "signature" projects for the centennial and featured partner projects.
Date: February 5, 2020
Creator: United States. Women's Suffrage Centennial Commission.
Partner: UNT Libraries Government Documents Department
open access

Women's Suffrage Centennial Commission: Second Report

Description: Report from the Women's Suffrage Centennial Commission providing an update about the group's work including meetings, the formation of subcommittees, and progress on the Commission's charges.
Date: February 5, 2019
Creator: United States. Women's Suffrage Centennial Commission.
Partner: UNT Libraries Government Documents Department
open access

Photoelastic evaluation of Phoebus 2 main closure design

Description: A two dimensional photoelastic study of two designs of clamps for the Phoebus 2 main closure is detailed. Predicted prototype stress data is given in the form of a stress parameter which includes the axial load and a representative clamp radius.
Date: February 5, 1965
Creator: Fischer, M. A.
Partner: UNT Libraries Government Documents Department
open access

ICF Program: LDRD-ER Final Report

Description: In the 01-ERD-107 LDRD-ER project, we have performed novel Thomson scattering experiments at the Trident and Omega laser facilities and provided high quality spectral data. These results have led to the development of the first quantitative understanding of laser-plasma interactions for NIF plasmas. For this purpose an green/ultraviolet probe laser, built for Nova in 1998 [1] and successfully used to measure both temperature and plasma wave amplitudes [2], has been deployed on Omega. The Thomso… more
Date: February 5, 2004
Creator: Glenzer, S H
Partner: UNT Libraries Government Documents Department
open access

01-ERD-111 - The Development of Synthetic High Affinity Ligands

Description: The aim of this project was to develop Synthetic High-Affinity Ligands (SHALs), which bind with high affinity and specificity to proteins of interest for national security and cancer therapy applications. The aim of producing synthetic ligands for sensory devices as an alternative to antibody-based detection assays and therapeutic agents is to overcome the drawbacks associated with antibody-based in next-generation sensors and systems. The focus area of the project was the chemical synthesis of… more
Date: February 5, 2004
Creator: Perkins, J; Balhorn, R; Cosman, M; Lightstone, F & Zeller, L
Partner: UNT Libraries Government Documents Department
open access

Spotforming with an array of ultra-wideband radio transmitters

Description: Ultra-wideband (UWB) array signal processing has the distinct advantage in that it is possible to illuminate or focus on ''spots'' at distant points in space, as opposed to just illuminating or steering at certain directions for narrowband array processing. The term ''spotforming'' is used to emphasize the property that point-focusing techniques with UWB waveforms can be viewed as a generalization of the well-known narrowband beamforming techniques. Because methods in spotforming can lead to po… more
Date: February 5, 2004
Creator: Dowla, F. & Spiridon, A.
Partner: UNT Libraries Government Documents Department
open access

Battlefield Utility of Antipersonnel Landmines and Proposed Alternatives (Analysis in Support of the NATO SAS-023 APM Study)

Description: This study consists of work done in support of the U.S. delegation to the NATO SAS-023 Antipersonnel Landmine Study Group, supplemented by additional work done for the U.S. Office of the Secretary of Defense Antipersonnel Landmine Alternative Concept Exploration Program (Track III). It explores the battlefield utility of current antipersonnel landmines (APL) in both pure and mixed APL/antitank minefields and evaluates the value of military suggested non-materiel alternatives. The historical rec… more
Date: February 5, 2002
Creator: Crandley, J. F., Jr.; Greenwalt, R. J., Jr.; Magnoli, D. E. & Randazzo, A. S.
Partner: UNT Libraries Government Documents Department
open access

Methods of travel-time residual declustering for the knowledge base calibration and integration tool (KBCIT)

Description: Calibration of seismic nuclear test monitoring stations relies on a diverse reference-event database. The reference-event covariance structure must be characterized and the covariance propagated to subsequent processes and calibration products. In seismic location one of the first steps in the calibration process is declustering, in which closely spaced epicenters are combined to reduce redundant data and random observational errors. We formulate a new declustering procedure that accounts for c… more
Date: February 5, 2001
Creator: Myers, S C
Partner: UNT Libraries Government Documents Department
open access

Containment Prospectus for the TRUMPET Experiments

Description: TRUMPET is a series of dynamic subcritical experiments planned for execution in the U1a.102D alcove of the U1a Complex at the Nevada Test Site (NTS). The location of LLNL drifts at the U1a Complex is shown in Figure 1. The data from the TRUMPET experiments will be used in the Stockpile Stewardship Program to assess the aging of nuclear weapons components and to better model the long-term performance of weapons in the enduring stockpile. The TRUMPET series of experiments will be conducted in an … more
Date: February 5, 2004
Creator: Pawloski, G A
Partner: UNT Libraries Government Documents Department
open access

Understanding Ground Motion in Las Vegas: Insights from Data Analysis and Two-Dimensional Modeling

Description: Seismic ground motions are amplified in low velocity sedimentary basins relative to adjacent sites on high velocity hard rock. We used historical recordings of NTS nuclear explosions and earthquake recordings in Las Vegas Valley to quantify frequency-dependent basin amplification using Standard Spectral Ratios. We show that amplifications, referred to as site response, can reach a factor of 10 in the frequency band 0.4-2.0 Hz. Band-averaged site response between 0.4-2.0 Hz is strongly correlate… more
Date: February 5, 2004
Creator: Rodgers, Arthur; Tkalcic, Hrvoje & McCallen, David
Partner: UNT Libraries Government Documents Department
open access

Novel Yersinia Pestis Toxin that Resembles Bacillus Anthracis Edema Factor: Study of Activity and Structural Modeling

Description: The goal of this project was to begin both experimental and computational studies of the novel plague toxin to establish its biological properties and create its 3D-model. The project was divided into two parts. (1) Experimental--This part was devoted to determine distribution of the genes encoding novel plague toxin among different isolates of Y.pestis. If the EF-like activity is important for Y.pestis pathogenicity, it is anticipated that all highly virulent strains will contain the toxin gen… more
Date: February 5, 2003
Creator: Motin, V; Garcia, E; Barsky, D & Zemla, A
Partner: UNT Libraries Government Documents Department
open access

Application of Critical Mass document HW-44064 to the Purex Process

Description: This document is a supplementary operating guide to document HW-44064, ``Process Specifications for Critical Mass Control -- Purex Plant.`` It is primarily intended that this document illustrate the actual operational means of conforming to the limits of critical mass control as presented in HW-44064.
Date: February 5, 1957
Creator: Gustafson, L. D.
Partner: UNT Libraries Government Documents Department
open access

Optics, Diagnostics and Applications for Fourth-Generation Light Sources

Description: The Linac Coherent Light Source (LCLS) is a 1.5 to 15 {angstrom}-wavelength free-electron laser (FEL), proposed for the Stanford Linear Accelerator Centre (SLAC). The photon output consists of high brightness, transversely coherent pulses with duration < 300 fs, together with a broad spontaneous spectrum with total power comparable to the coherent output. The output fluence, and pulse duration, pose special challenges for optical component and diagnostic designs. We first discuss the specifi… more
Date: February 5, 2003
Creator: Wootton, A.; Barbee, T.; Bionta, R.; Chapman, H.; Ditmire, T.; Dyer, G. et al.
Partner: UNT Libraries Government Documents Department
open access

Longitudinal information and radiation damage in EM calorimetry

Description: The SCC radiation field is higher than that encountered by previous hadron collider detectors. In particular, the electromagnetic (EM) calorimeter compartment sees the highest radiation dose. Since an EM calorimeter also makes the most precise energy measurement, special care must be lavished on this part of a calorimeter. Previous studies have concentrated on Monte Carlo examinations of 2 longitudinal compartments within the EM which can alleviate radiation damage. Recently, it was realized th… more
Date: February 5, 1993
Creator: Green, D.
Partner: UNT Libraries Government Documents Department
open access

Tritium sample analyses in the Savannah River and associated waterways following the K-reactor release of December 1991

Description: An unplanned release of tritiated water occurred at K reactor on SRS between 22-December and 25-December 1991. This water moved down through the effluent canal, Pen Branch, Steel Creek and finally to the Savannah River. Samples were collected in the Savannah River and associated waterways over a period of a month. The Environmental Technology Section (ETS) of the Savannah River Laboratory performed liquid scintillation analyses to monitor the passage of the tritiated water from SRS to the Atlan… more
Date: February 5, 1992
Creator: Beals, D. M.; Dunn, D. L.; Hall, G. & Kantelo, M. V.
Partner: UNT Libraries Government Documents Department
open access

Increased coolant flow H Reactor: PITA IP-27-I, Part 1. Supplement A

Description: Purpose of this supplement is to increase the maximum allowable liquid level in the near downcomer for single downcomer operation. The required clearance between the downcomer lid and liquid level is reduced from 24 inches to 18 inches in the near downcomer, providing bulk outlet temperature is maintained less than 93 C.
Date: February 5, 1964
Creator: Spicka, R. E.
Partner: UNT Libraries Government Documents Department
open access

Total Control vs Reactivity Parameters

Description: Changes in pile operating parameters, such as fuel exposure, paver, and reactivity gain upon water loss affect the potential reactivity of the operating, pile and, therefore, the amount of enrichment required to operate under the desired conditions. Similarly a change in ECT (through enrichment location) changes the amount of enrichment.needed to maintain a constant reactivity. Many of the factors which influence the operating reactivity have quite different effects upon the reactivity of the d… more
Date: February 5, 1959
Creator: Simpson, D. E.
Partner: UNT Libraries Government Documents Department
Back to Top of Screen