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open access

A 1-D model for highly sensitive tubular reactors

Description: We consider the steady state operation of wall-cooled, fixed-bed tubular reactors. In these reactors the temperature rise ..delta..T must normally be limited to small fractions of the adiabatic temperature rise ..delta..T/sub ad/, both to avoid runaway and maintain product selectivity. Yet ..delta..T/..delta..T/sub ad/ << 1 can only occur if eta = t/sub dif//t/sub reac/ << 1, where t/sub dif/ is the timescale on which heat escapes the reactor by ''diffusing'' to the cooled walls, and t/sub reac… more
Date: January 1, 1987
Creator: Hagan, P. S.; Herskowitz, M. & Pirkle, J. C.
Item Type: Refine your search to only Article
open access

2-D ACAR measurements of Ni/sub 3/A1

Description: In connection with a detailed study of the electronic structure and stability of the aluminides (Ni,Fe)/sub 3/Al, 2-D ACAR positron annihilation measurements were made on a Ni/sub 3/Al single crystal to study the Fermi surface. The results for Ni/sub 3/Al have been compared with results for pure Ni. Strong similarities were found for the electronic structures of these materials. Theoretical calculations of the Fermi surface for Ni/sub 3/Al are in good agreement with the experimental results. Th… more
Date: July 1987
Creator: Smedskjaer, L. C.; DasGupta, A.; Legnini, D. G. & Stahulak, M. D.
Item Type: Refine your search to only Report
open access

2-Dimensional studies of the disk-and-washer and side-coupled resonant cavity structures

Description: The work done consists of three parts: optimizing the disk-and-washer (DAW) structure at ..beta.. = 0.5662 corresponding to E = 200 MeV; comparing the DAW structure with the side-coupled (SCS) structure at various values of beta, ranging from ..beta.. = 0.4569 and E = 116 MeV to ..beta.. = 0.7131 and E = 400 MeV; and re-optimizing the DAW structure at ..beta.. = 0.7131. 4 refs., 51 figs., 41 tabs.
Date: December 1, 1987
Creator: Larry, L.D. Jr.
Item Type: Refine your search to only Report
open access

2, Pulse-mode expansions and refractive indices in plane-wave propagation

Description: This memo presents basic background theory for treating simultaneous propagation of electromagnetic pulses of various colors, directed along a common ray, through a molecular vapor. The memo discusses some techniques for expanding the positive frequency part of the transverse electric field into pulse modes, characterized by carrier frequencies within a modulated envelope. We discuss, in the approximation of plane waves with slowly varying envelopes, a set of uncoupled envelope equations in whi… more
Date: June 20, 1987
Creator: Shore, B. W.; Sacks, R.; Karr, T.; Morris, J. & Paisner, J. A.
Item Type: Refine your search to only Report
open access

3-D hybrid PIC code to model the tilt mode in FRCs

Description: The results from QN3D are presented. QN3D is a 3-dimensional hybrid particle-in-cell code designed to run efficiently on the Cray-2 Multiprocessor. The chief application has been to the tilt mode instability in FRCs. QN3D accepts as input, the magnetic field, the ion particle density and the ion temperature on a two-dimensional r-z grid. These quantities are interpolated to the rest of the cartesian grid under the assumption of azimuthal symmetry. The particles are initialized with random numbe… more
Date: June 1, 1987
Creator: Horowitz, E. J. & Shumaker, D. E.
Item Type: Refine your search to only Article
open access

4,5-methylenedithio-4',5'-propylenedithiotetrathiafulvalene (MPT) and 4,5-ethylenedithio-4',5'-propylenedithiotetrathiafulvalene (EPT)

Description: The title electron donors, unsymmetrical analogs of Bis(ethylenedithio)tetrathiafulvalene, are synthesized. The utility of /sup 252/Cf Plasma Desorption Mass Spectrometry in the characterization and purity determinations is also reported.
Date: January 1, 1987
Creator: Kini, A. M.; Tytko, S. F.; Hunt, J. E. & Williams, J. M.
Item Type: Refine your search to only Article
open access

7-GeV Advanced Photon Source : Conceptual Design Report

Description: During the past decade, synchrotron radiation emitted by circulating electron beams has come into wide use as a powerful, versatile source of x-rays for probing the structure of matter and for studying various physical processes. Several synchrotron radiation facilities with different designs and characteristics are now in regular operation throughout the world, with recent additions in this country being the 0.8-GeV and 2.5-GeV rings of NSLS at Brookhaven National Laboratory. However, none of … more
Date: April 1987
Creator: Argonne National Laboratory
Item Type: Refine your search to only Report
open access

7-GeV Advanced Photon Source Conceptual Design Report

Description: During the past decade, synchrotron radiation emitted by circulating electron beams has come into wide use as a powerful, versatile source of x-rays for probing the structure of matter and for studying various physical processes. Several synchrotron radiation facilities with different designs and characteristics are now in regular operation throughout the world, with recent additions in this country being the 0.8-GeV and 2.5-GeV rings of NSLS at Brookhaven National Laboratory. However, none of … more
Date: April 1, 1987
Item Type: Refine your search to only Report
open access

88-Inch Cyclotron newsletter

Description: Activities at the 88-Inch Cyclotron are discussed. Increased beam time demand and operation of the ECR source and cyclotron are reported. Experimental facility improvements are reported, including improvements to the High Energy Resolution Array and to the Recoil Atom Mass Analyzer, a new capture beamline, development of a low background counting facility. Other general improvements are reported that relate to the facility computer network and electronics pool. Approved heavy nuclei research is… more
Date: February 1, 1987
Creator: Stokstad, R.
Item Type: Refine your search to only Journal/Magazine/Newsletter
open access

300 Area Process Trench Sediment Analysis Report

Description: This report describes the results of a sampling program for the sediments underlying the Process Trenches serving the 300 Area on the Hanford reservation. These Process Trenches were the subject of a Closure Plan submitted to the Washington State Department of Ecology and to the US Environmental Protection Agency in lieu of a Part B permit application on November 8, 1985. The closure plan described a proposed sampling plan for the underlying sediments and potential remedial actions to be determ… more
Date: December 1, 1987
Creator: Zimmerman, M.G. & Kossik, C.D.
Item Type: Refine your search to only Report
open access

1985 consumer segmentation: Assessment of the market for conservation in the Northwest: Phase 2

Description: This report presents information on consumer attitudes toward conservation, past and intended conservation behaviors, and utility-sponsored conservation program participation levels. The information was collected by means of random telephone surveys of households in Idaho, Oregon, Washington, and Western Montana. Pacific Northwest Laboratory (PNL) conducted analyses of the survey results for the Bonneville Power Administration (BPA) to obtain a better understanding of consumer attitudes and beh… more
Date: May 1987
Creator: Bailey, B. M.; Hattrup, M. P.; Nordi, R. T.; Shankle, S. A. & Ivey, D. L.
Item Type: Refine your search to only Report
open access

1985 Libby Reservoir Angler Census: May 13-October 31, 1987 [i.e. 1985] : Interim Report.

Description: An intensive creel and economic survey was conducted on Libby Reservoir from May 13 through October 31, 1985. This research was part of a larger effort to quantify the existing reservoir fishery and the effects of dam operation on this fishery. Census techniques incorporated direct interviews and electronic car counters installed at all established boat ramp access sites. A total of 4243 angling party interviews, 2379 car counter interviews and 719 economic surveys were conducted on Libby Reser… more
Date: May 1, 1987
Creator: Chisholm, Ian & Hamlin, Paul
Item Type: Refine your search to only Report
open access

1985 primary heating fuel use and switching: Assessment of the market for conservation in the Northwest: Phase 2

Description: This report presents information on the types of primary heating fuels used in residences in the Pacific Northwest region and how the heating fuels affect the level of investment in energy conservation measures (ECMs) by occupants of the residences. The types of heating fuel switching that occurred during the past two years (1983-1985) is also presented. The information was collected from random telephone surveys of households in Idaho, Oregon, Washington, and western Montana. The Pacific North… more
Date: May 1, 1987
Creator: Hattrup, M. P.; Nordi, R. T. & Ivey, D. L.
Item Type: Refine your search to only Report
open access

1986 Environmental Monitoring Report

Description: SNLL conducts various research activities which have the potential for release of hazardous materials or radionuclides to the environment. Potential emissions include tritium, depleted uranium, metals, solvents, and common laboratory chemicals. SNLL handles gram quantities of tritium, kilogram quantities of depleted uranium, but only microcurie quantities of other isotopes. Airborne tritium released in 1986 during research at the TRL was 760 curies (predominantly the oxide form) and 24 millicur… more
Date: April 1, 1987
Creator: Devlin, T. K.
Item Type: Refine your search to only Report
open access

The 1986 residential occupant survey

Description: In 1986, Pacific Northwest Laboratory developed the Residential Occupant Survey-Spring '86, which was implemented. The overall purpose of the study was to collect demographic, attitudinal, and behavioral data related to the use and conservation of electricity in dwellings participating in the Bonneville Power Administration's End-Use Load and Conservation Assessment Program (ELCAP). Information was collected on the respondents' perceptions of the energy efficiency of their dwelling, temperature… more
Date: April 1, 1987
Creator: Ivey, D.L. & Alley, P.K.
Item Type: Refine your search to only Report
open access

1987 DOE review: First collider run operation

Description: This review covers the operations of the first run of the 1.8 TeV superconducting super collider. The papers enclosed cover: PBAR source status, fixed target operation, Tevatron cryogenic reliability and capacity upgrade, Tevatron Energy upgrade progress and plans, status of the D0 low beta insertion, 1.8 K and 4.7 K refrigeration for low-..beta.. quadrupoles, progress and plans for the LINAC and booster, near term and long term and long term performance improvements.
Date: May 1, 1987
Creator: Childress, S.; Crawford, J.; Dugan, G.; Edwards, H.; Finley, D. A.; Fowler, W. B. et al.
Item Type: Refine your search to only Report
open access

1987 Federal interim storage fee study: A technical and economic analysis

Description: This document is the latest in a series of reports that are published annually by Pacific Northwest Laboratory (PNL) for the US Department of Energy (DOE). This information in the report, which was prepared by E.R. Johnson Associates under subcontract to PNL, will be used by the DOE to establish a payment schedule for interim storage of spent nuclear fuel under the Federal Interim Storage (FIS) Program, which was mandated by the Nuclear Waste Policy Act of 1982. The information in this report w… more
Date: September 1, 1987
Item Type: Refine your search to only Report
open access

1987 Oak Ridge model conference: Proceedings

Description: A conference sponsored by the United States Department of Energy (DOE), was held on waste management. Topics included waste management, site remediation, waste minimization, economic and social aspects of waste management, and waste management training. Several case studies of US DOE facilities are included. Individual projects are processed separately for the data bases. (CBS)
Date: October 1, 1987
Item Type: Refine your search to only Article
open access

1987 Oak Ridge model conference: Proceedings: Volume 2, Environmental protection

Description: See the abstract for Volume I for general information on the conference. Topics discussed in Volume II include data management techiques for environmental protection efforts, the use of models in environmental auditing, in emergency plans, chemical accident emergency response, risk assessment, monitoring of waste sites, air and water monitoring of waste sites, and in training programs. (TEM)
Date: January 1, 1987
Item Type: Refine your search to only Article
open access

1987 Oak Ridge model conference: Proceedings: Volume I, Part 3, Waste Management

Description: A conference sponsored by the United States Department of Energy (DOE), was held on waste management. Topics of discussion were transuranic waste management, chemical and physical treatment technologies, waste minimization, land disposal technology and characterization and analysis. Individual projects are processed separately for the data bases. (CBS)
Date: January 1, 1987
Item Type: Refine your search to only Article
open access

A 20mK temperature sensor

Description: We are developing a 20mK temperature sensor made of neutron transmutation doped (NTD) germanium for use as a phonon detector in a dark matter search. We find that NTD germanium thermistors around 20mK have resistances which are a strong function of temperature, and have sufficient sensitivity to eventually reach a base line rms energy fluctuation of 6eV at 25mK. Further work is needed to understand the extreme sensitivity of the thermistors to bias power. 13 refs., 18 figs.
Date: November 1987
Creator: Wang, N.; Sadoulet, B.; Shutt, T.; Beeman, J.; Haller, E.E.; Lange, A. et al.
Item Type: Refine your search to only Article
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