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V-TOUGH: An enhanced version of the TOUGH code for the thermal and hydrologic simulation of large-scale problems in nuclear waste isolation

Description: The TOUGH code developed at Lawrence Berkeley Laboratory (LBL) is being extensively used to numerically simulate the thermal and hydrologic environment around nuclear waste packages in the unsaturated zone for the Yucca Mountain Project. At the Lawrence Livermore National Laboratory (LLNL) we have rewritten approximately 80 percent of the TOUGH code to increase its speed and incorporate new options. The geometry of many problems requires large numbers of computational elements elements in order… more
Date: November 6, 1989
Creator: Nitao, J. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

User computer system pilot project

Description: The User Computer System (UCS) is a general purpose unclassified, nonproduction system for Mound users. The UCS pilot project was successfully completed, and the system currently has more than 250 users. Over 100 tables were installed on the UCS for use by subscribers, including tables containing data on employees, budgets, and purchasing. In addition, a UCS training course was developed and implemented.
Date: September 6, 1989
Creator: Eimutis, E.C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Outline of status of national seismic stations (NSS) in CTB negotiations

Description: The paper discusses two treaties that are being negotiated: Multilateral Treaty, which bans all nuclear weapon tests and establishes a moratorium on PNEs (Peaceful Nuclear Explosions) for the life of the treaty, and a separate verification agreement, which provides for much more extensive verification measures that does the Multilateral Treaty and to which only the US, UK, and USSR will adhere. On the latter treaty, agreement has been reached that there will be improved seismic stations (NSS) i… more
Date: May 6, 1980
Creator: Heckrotte, W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The Application of Some Hartree-Fock Model Calculation to the Analysis of Atomic and Free-Ion Optical Spectra

Description: Techniques for applying ab-initio calculations to the is of atomic spectra are investigated, along with the relationship between the semi-empirical and ab-initio forms of Slater-Condon theory. Slater-Condon theory is reviewed with a focus on the essential features that lead to the effective Hamiltonians associated with the semi-empirical form of the theory. Ab-initio spectroscopic parameters are calculated from wavefunctions obtained via self-consistent field methods, while multi-configuration … more
Date: August 6, 1980
Creator: Hayhurst, Thomas Laine
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries Government Documents Department
open access

Information on a Major New Initiative: Mapping and Sequencing the Human Genome (1986 DOE Memorandum)

Description: In the history of the Human Genome Program, Dr. Charles DeLisi and Dr. Alvin Trivelpiece of the Department of Energy (DOE) were instrumental in moving the seeds of the program forward. This May 1986 memo from DeLisi to Trivelpiece, director of DOE's Office of Energy Research, documents this fact. Following the March 1986 Santa Fe workshop on the subject of mapping and sequencing the human genome, Delisi's memo outlines workshop conclusions, explains the relevance of this project to DOE and the … more
Date: May 6, 1986
Creator: DeLisi, Charles (Associate Director, Heath and Environmental Research, DOE Office of Energy Research)
Item Type: Refine your search to only Text
Partner: UNT Libraries Government Documents Department
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Some Calculations Pertaining to Central Calorimeter Cooldown Rate and Temperature Gradients

Description: For a first-pass look at how the central calorimeter module assemblies cool down in the CC cryostat, some 'hand' calculations of free convection from the end plates were done. A local convection coefficient for heat transfer from the vertically oriented end plates to the argon gas is estimated to be about 1 x 10{sup -3} W/cm{sup 2}K. Even for free convection, flow is turbulent between the end plates and cryostat wall. Total rate of heat removal from both ends of the assembly at 300K to lOOK arg… more
Date: August 6, 1987
Creator: Peterson, T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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D0 Carriage Roller Bearing Measurements

Description: All of the ordered Tychoway rollers, to be used under the cryostat carriages on the center beam, have to be modified to accommodate a keyed way used to guide the cryostat along these same ways. A 0.320 x 0.406 inch notch is machined along one of the longer lower edges in order to create a 0.640 x 0.406 inch keyway when two of these notched rollers are bolted together (side by side) for installation. This keyway will fit over a .635 x .375 inch key, which is inserted into the ways. Due to the cl… more
Date: February 6, 1989
Creator: Jaques, Al
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

High Voltage Connector

Description: The originally designed high voltage connectors were to be made of brass. However, if treated like a Bellevile spring with the initially given dimensions, the stresses of the connector when crimped were calculated to be much higher than the yield stress of brass. Since the flange and outer diameters of the connector are to remain small, it was necessary to alter the other dimensions and choice of material in order to bring down the stresses applied to the connector.
Date: March 6, 1987
Creator: Kurita, C. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Grout Analysis for EC and CC Calorimeters

Description: The EC and CC calorimeters roll on Two parallel hardened steel ways which reside on the top of the D0 platform's center beam. The ways will be grouted to the center beam once their correct elevation has been established. The purpose of this report is to evaluate and compare three different epoxy grouts and their properties for this application.
Date: January 6, 1987
Creator: Engstrom, L.L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Report on Furukawa Coax #2

Description: This report contains the results of measurements performed on sample coax No.2 from the Furukawa Cable Co. of Japan. Time domain reflectometer (TOR) and RLC measurements were made at room temperature and superconducting. Network analyzer measurements of S11 and S21 were made for the superconducting coax.
Date: December 6, 1984
Creator: Peterson, D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Joining of ceramics for high performance energy systems. Mid-term progress report, August 1, 1979-March 31, 1980

Description: The subject program is primarily an exploratory and demonstration study of the use of silicate glass-based adhesives for bonding silicon-base refractory ceramics (SiC, Si/sub 3/N/sub 4/). The projected application is 1250 to 2050/sup 0/F relaxing joint service in high-performance energy conversion systems. The five program tasks and their current status are as follows. Task 1 - Long-Term Joint Stability. Time-temperature-transformation studies of candidate glass adhesives, out to 2000 hours sim… more
Date: October 6, 1980
Creator: Smeltzer, C E & Metcalfe, A G
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Introduction to magnetic confinement fusion diagnostics

Description: These notes present a brief survey of some of the current diagnostic techniques used in magnetic fusion plasma devices. To give an idea of the range of parameters and geometries encountered the parameters of four representative experiments - PLT, TMX, ZT-40 and EBT-I(S) - are given. The central issue of all experiments is to understand the flow of power which can be summarized by two volume integrated equations for the ions and electrons.
Date: June 6, 1980
Creator: Turner, W.C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Determination of trace impurities in uranium hexafluoride by an inductively coupled argon plasma spectrometer

Description: A procedure has been developed to determine 21 trace impurity elements in uranium hexafluoride, using inductively coupled argon plasma emission spectrometry (ICAP). The method consists of a liquid-liquid extraction to separate uranium from the trace impurities with a mixture of tri-(2-ethyl-hexyl)-phosphate (TEHP) and heptane. The raffinate containing the elements is subsequently analyzed by ICAP. The impurity elements which can be analyzed by this method are: Al, B, Ba, Be, Bi, Ca, Cd, Co, Cr,… more
Date: January 6, 1983
Creator: Short, B. W.; Spring, H. S. & Grant, R. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Beryllium usage in fusion blankets and beryllium data needs. [None]

Description: Increasing numbers of designers are choosing beryllium for fusion reactor blankets because it, among all nonfissile materials, produces the highest number (2.5 neutron in an infinite media) of neutrons per 14-MeV incident neutron. In amounts of about 20 cm of equivalent solid density, it can be used to produce fissile material, to breed all the tritium consumed in ITER from outboard blankets only, and in designs to produce Co-60. The problem is that predictions of neutron multiplication in bery… more
Date: April 6, 1988
Creator: Moir, Ralph W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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