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A 2.14 ms candidate optical pulsar in SN1987A: Ten years after

Description: We have monitored Supernova 1987A in optical/near-infrared bands from a few weeks following its birth until the present time in order to search for a pulsar remnant. We have found an apparent pattern of emission near the frequency of 467.5 Hz - a 2.14 ms pulsar candidate, first detected in data taken on the remnant at the Las Campanas Observatory (LCO) 2.5-m Dupont telescope during 14-16 Feb. 1992 UT. We detected further signals near the 2.14 ms period on numerous occasions over the next four y… more
Date: September 1, 1997
Creator: Middleditch, J.; Kristian, J. A.; Kunkel, W. E.; Hill, K. M. & Watson, R. D.
Item Type: Refine your search to only Article
open access

100-D Ponds closure plan. Revision 1

Description: The 100-D Ponds is a Treatment, Storage, and Disposal (TSD) unit on the Hanford Facility that received both dangerous and nonregulated waste. This Closure Plan (Rev. 1) for the 100-D Ponds TSD unit consists of a RCRA Part A Dangerous Waste Permit Application (Rev. 3), a RCRA Closure Plan, and supporting information contained in the appendices to the plan. The closure plan consists of eight chapters containing facility description, process information, waste characteristics, and groundwater moni… more
Date: September 1, 1997
Creator: Petersen, S.W.
Item Type: Refine your search to only Report
open access

A 600-kV double-pulser for the PHERMEX electron gun

Description: The PHERMEX (Pulsed High Energy Radiographic Machine Emitting X-rays) Radiographic Facility is a 50-MHz, 3-Cavity, RF-Linac driven by a pulsed, thermionic electron-gun Injector. The PHERMEX is used to take flash radiographs using x-rays at a single time in an explosively driven event. To investigate the time evolution of these events requires two things: (1) a multiple-pulser to drive the electron-gun Injector and (2) a large-format, gamma-ray, camera system to record a scintillator at the diff… more
Date: September 1, 1997
Creator: Carlson, R. L.; Kang, M.; Melton, J. G.; Seitz, G. J. & Trujillo, L. T.
Item Type: Refine your search to only Article
open access

1996 LMITCO environmental monitoring program report for the Idaho National Engineering and Environmental Laboratory

Description: This report describes the calendar year 1996 environmental surveillance and compliance monitoring activities of the Lockheed Martin Idaho Technologies Company Environmental Monitoring Program performed at the Idaho National Engineering and Environmental Laboratory (INEEL). Results of sampling performed by the Radiological Environmental Surveillance, Site Environmental Surveillance, Drinking Water, Effluent Monitoring, Storm Water Monitoring, Groundwater Monitoring, and Special Request Monitorin… more
Date: September 1, 1997
Item Type: Refine your search to only Report
open access

1996 Site environmental report. Volume I

Description: This report summarizes environmental activities at the Ernest Orlando Lawrence Berkeley National Laboratory (Berkeley Lab) for 1996. It presents data and information that characterize the Laboratory`s environmental management performance measured against applicable regulatory standards and DOE requirements. The report also discusses significant highlights of Berkeley Lab`s environmental programs. The format and content of the report satisfy the requirements set forth in applicable sections of U… more
Date: September 1, 1997
Item Type: Refine your search to only Report
open access

1996 Site environmental report. Volume II

Description: Ernest Orlando Lawrence Berkeley National Laboratory presents Volume II, data appendix as a reference document to supplement the 1996 Site Environmental Report. Volume II contains the raw environmental monitoring and sampling data used to generate many of the summary results included in the main report for both routine and nonroutine activities. This appendix includes a legend that cross-references the enclosed data tables with summary tables in the main report. The legend also provides a listi… more
Date: September 1, 1997
Item Type: Refine your search to only Report
open access

1996 state-by-state assessment of low-level radioactive wastes received at commercial disposal sites

Description: Each year the National Low-Level Waste Management Program publishes a state-by-state assessment report. This report provides both national and state-specific disposal data on low-level radioactive waste commercially disposed in the US. Data in this report are categorized according to disposal site, generator category, waste class, volumes, and radionuclide activity. Included in this report are tables showing the distribution of waste by state for 1996 and a comparison of waste volumes and radio… more
Date: September 1997
Creator: Fuchs, R. L.
Item Type: Refine your search to only Report
open access

1997 structural integrity assessments for the Category C liquid low-level waste tank systems at Oak Ridge National Laboratory, Oak Ridge, Tennessee

Description: This report presents the results of a series of evaluations to determine if the individual Category C tank systems retain sufficient structural integrity to continue being used for liquid storage. The approach used to reach the final certification/conclusion consisted of three phases, including: (1) Review of the original engineering design drawings and construction materials to determine whether the tank and line systems were capable of containing liquids without leaking (and also to check tha… more
Date: September 1, 1997
Item Type: Refine your search to only Report
open access

1997 U.S. Department of Energy Strategic Plan

Description: With the end of the Cold War and the election of President Clinton, the Department of Energy (DOE) set a new course which began with the publication of its first departmental strategic plan in April 1994. Entitled ``Fueling a Competitive Economy, it provided the framework and shared vision for meeting responsibilities in energy, national security, environmental quality, and science and technology. The strategic plan was the guidepost for the formulation of the Department`s FY 1996, FY 1997, and… more
Date: September 1997
Item Type: Refine your search to only Text
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3D Atlas vertical plate oil transmission line field calculations. Final report

Description: Because of questions regarding current density and inductance estimates of the Atlas oil transmission line in the region where the vertical plates connect to the disk line, calculations using the 3D FE program Flux3d were initiated. Flux3d inductance values are nearly that estimated by D. Scudder. Calculations for three base designs of E. Ballard and D. Pierce were completed where several variations for each base design were used to determine the important parameters affecting inductance and to… more
Date: September 18, 1997
Item Type: Refine your search to only Report
open access

3RD WP PROBABILISTIC CRITICALITY ANALYSIS: METHODOLOGY FOR BASKET DEGRADATION WITH APPLICANTION TO COMMERICAL SNF

Description: This analysis is prepared by the Mined Geologic Disposal System (MGDS) Waste Package Development (WPD) department to describe the latest version of the probabilistic criticality analysis methodology and its application to the entire commercial waste stream of commercial pressurized water reactor (PWR) spent nuclear fuel (SNF) expected to be emplaced in the repository. The purpose of this particular application is to evaluate the 21 assembly PWR absorber plate waste package (WP) with respect to … more
Date: September 15, 1997
Creator: Goulib, P.
Item Type: Refine your search to only Report
open access

6th International Meshing Roundtable '97

Description: The goal of the 6th International Meshing Roundtable is to bring together researchers and developers from industry, academia, and government labs in a stimulating, open environment for the exchange of technical information related to the meshing process. In the pas~ the Roundtable has enjoyed significant participation born each of these groups from a wide variety of countries. The Roundtable will consist of technical presentations from contributed papers and abstracts, two invited speakers, and… more
Date: September 1, 1997
Creator: White, D.
Item Type: Refine your search to only Report
open access

Aberration analysis calculations for synchrotron radiation beamline design

Description: The application of ray deviation calculations based on aberration coefficients for a single optical surface for the design of beamline optical systems is reviewed. A systematic development is presented which allows insight into which aberration may be causing the rays to deviate from perfect focus. A new development allowing analytical calculation of line shape is presented.
Date: September 1, 1997
Creator: McKinney, W.R.; Howells, M. & Padmore, H.A.
Item Type: Refine your search to only Article
open access

Absorptance measurements of transmissive optical components by the surface thermal lensing technique

Description: The surface thermal lensing technique (STL) successfully resolved and measured the absorptance of transmissive optical components: near- normal angle-of-incidence anti-reflectors and beam splatters. The STL system uses an Ar ion laser to pump the components at 514.5 mn. The absorptance-induced surface deformation diffracts the HeNe probe beam into a photo-detector. The signal intensity was calibrated with a sample of known absorptance. The optical components were designed to function in a coppe… more
Date: September 24, 1997
Creator: Chow, R.; Taylor, J. R.; Wu, Z. L.; Han, Y. & Tian, L. Y.
Item Type: Refine your search to only Article
open access

AC magnetic field losses in BSCCO-2223 superconducting tapes

Description: The AC magnetic losses at power frequencies (60 Hz) were investigated for mono- and multifilament Ag-sheathed (Bi, Pb){sub 2}Sr{sub 2}Ca{sub 2}Cu{sub 3}O{sub y} (BSCCO-2223) tapes with similar transport critical current (I{sub c}) values at 77 K. The multifilament sample exhibited higher losses than the monofilament under the same conditions. Loss peaks are discussed in terms of intergranular, intragranular and eddy current losses. Because of BSCCO`s anisotropy, field orientation has a large ef… more
Date: September 1, 1997
Creator: Lelovic, M.; Mench, S. & Deis, T.
Item Type: Refine your search to only Article
open access

Accelerator mass spectrometry as a bioanalytical tool for nutritional research

Description: Accelerator Mass Spectrometry is a mass spectrometric method of detecting long-lived radioisotopes without regard to their decay products or half-life. The technique is normally applied to geochronology, but recently has been developed for bioanalytical tracing. AMS detects isotope concentrations to parts per quadrillion, quantifying labeled biochemicals to attomole levels in milligram- sized samples. Its advantages over non-isotopeic and stable isotope labeling methods are reviewed and example… more
Date: September 1997
Creator: Vogel, J. S. & Turteltaub, K. W.
Item Type: Refine your search to only Article
open access

Accelerator production of tritium pollution prevention design assessment

Description: This Pollution Prevention Design Assessment (PPDA) provides data for cost-benefit analysis of the potential environmental impact of the APT, is an integral part of pollution prevention/waste minimization, and is required by DOE for any activity generating radioactive, hazardous, and mixed wastes. It will also better position the APT to meet future requirements, since it is anticipated that regulatory and other requirements will continue to become more restrictive and demanding.
Date: September 18, 1997
Creator: Reynolds, R.; Nowacki, P.; Sheetz, S.O. & Lanik, P.
Item Type: Refine your search to only Report
open access

Accrediting models for the TMD COEA: A case study in face assessment

Description: This paper describes a face validation process developed to assess computer models used in Phase I of the Theater Missile Defense (TMD) Cost and Operational Effectiveness Analysis (COEA) and to aid the COEA Study Director in making accreditation decisions for those models. The process was applied to five BMDO models, only two of which had a formal configuration management program. The process was expedient, efficient and proved to be an effective method of distilling essential information for t… more
Date: September 1, 1997
Creator: Bravy, S.; May, W. L. & Mitchell, B. L.
Item Type: Refine your search to only Article
open access

Acoustic Resonance Spectroscopy (ARS) Munition Classification System enhancements. Final report

Description: Acoustic Resonance Spectroscopy (ARS) is a non-destructive evaluation technology developed at the Los Alamos National Laboratory (LANL). This technology has resulted in three generations of instrumentation, funded by the Defense Special Weapons Agency (DSWA), specifically designed for field identification of chemical weapon (CW) munitions. Each generation of ARS instrumentation was developed with a specific user in mind. The ARS1OO was built for use by the U.N. Inspection Teams going into Iraq … more
Date: September 18, 1997
Creator: Vela, O.A. & Huggard, J.C.
Item Type: Refine your search to only Report
open access

Activation and micropore structure determination of activated carbon-fiber composites

Description: Rigid, high surface area activated carbon fiber composites have been produced with high permeabilities for environmental applications in gas and water purification. These novel monolithic adsorbents can be produced in single pieces to a given size and shape. The project involves a collaboration between the Oak Ridge National Laboratory (ORNL) and the Center for Applied Energy Research (CAER), University of Kentucky. The carbon fiber composites are produced at the ORNL and activated at the CAER … more
Date: September 5, 1997
Creator: Jagtoyen, M.; Derbyshire, F. & Kimber, G.
Item Type: Refine your search to only Report
open access

Adaptive security systems -- Combining expert systems with adaptive technologies

Description: The Adaptive Multisensor Integrated Security System (AMISS) uses a variety of computational intelligence techniques to reason from raw sensor data through an array of processing layers to arrive at an assessment for alarm/alert conditions based on human behavior within a secure facility. In this paper, the authors give an overview of the system and briefly describe some of the major components of the system. This system is currently under development and testing in a realistic facility setting.
Date: September 1, 1997
Creator: Argo, P.; Loveland, R. & Anderson, K.
Item Type: Refine your search to only Article
open access

Addendum 1 to CSER 97-025: PFP storage of 9.25/9.5 inch tall, 4.4 kg Pu cans on existing Vault 4 pedestals

Description: A nuclear criticality safety analysis has been performed to increase the approved plutonium mass limit for cans stored in Vault {number_sign}4 cubicles at PFP. The original CSER 96-025 accommodated the storage of 4.4 kg of plutonium in PuO, (5.0 kg PuO,) in Vault {number_sign}4 by requiring that half the cubicles be left vacant. This addendum allows for all the cubicles to be used, but with a fissile plutonium mass limit of 58 kg per cubicle. A mass limit for each cubical allows for storage of … more
Date: September 4, 1997
Creator: Hillesland, K.E.
Item Type: Refine your search to only Report
open access

Adsorption-controlled growth of ferroelectric PbTiO{sub 3} and Bi{sub 4}Ti{sub 3}O{sub 12} films for nonvolatile memory applications by MBE

Description: Epitaxial PbTiO{sub 3} and Bi{sub 4}Ti{sub 3}O{sub 12} thin films have been grown on (100) SrTiO{sub 3} and (100) LaAlO{sub 3} substrates by reactive molecular beam epitaxy (MBE). Titanium is supplied to the film in the form of shuttered bursts each containing a one monolayer dose of titanium atoms for the growth of PbTiO{sub 3} and three monolayers for the growth of Bi{sub 4}Ti{sub 3}O{sub 12}. Lead, bismuth, and ozone are continuously supplied to the surface of the depositing film. Growth of … more
Date: September 1, 1997
Creator: Theis, C. D.; Yeh, J.; Schlom, D. G.; Hawley, M. E. & Brown, G. W.
Item Type: Refine your search to only Article
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