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Initial demonstration of the NRC`s capability to conduct a performance assessment for a High-Level Waste Repository

Description: In order to better review licensing submittals for a High-Level Waste Repository, the US Nuclear Regulatory Commission staff has expanded and improved its capability to conduct performance assessments. This report documents an initial demonstration of this capability. The demonstration made use of the limited data from Yucca Mountain, Nevada to investigate a small set of scenario classes. Models of release and transport of radionuclides from a repository via the groundwater and direct release p… more
Date: May 1, 1992
Creator: Codell, R.; Eisenberg, N.; Fehringer, D.; Ford, W.; Margulies, T.; McCartin, T. et al.
Partner: UNT Libraries Government Documents Department
open access

Theory and numerical application of subsurface flow and transport for transient freezing conditions

Description: Protective barriers are being investigated for the containment of radioactive waste within subsurface environments. Predicting the effectiveness of cryogenic barriers and near-surface barriers in temperate or arctic climates requires capabilities for numerically modeling subsurface flow and transport for freezing soil conditions. A predictive numerical model is developed herein to simulate the flow and transport of radioactive solutes for three-phase (water-ice-air) systems under freezing condi… more
Date: April 1, 1995
Creator: White, M. D.
Partner: UNT Libraries Government Documents Department
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A Correlated Study of the Response of a Satellite to Acoustic Radiation Using Statistical Energy Analysis and Acoustic Test Data

Description: Aerospace payloads, such as satellites, are subjected to vibroacoustic excitation during launch. Sandia's MTI satellite has recently been certified to this environment using a combination of base input random vibration and reverberant acoustic noise. The initial choices for the acoustic and random vibration test specifications were obtained from the launch vehicle Interface Control Document (ICD). In order to tailor the random vibration levels for the laboratory certification testing, it was ne… more
Date: November 15, 1999
Creator: Cap, Jerome S. & Tracey, Brian
Partner: UNT Libraries Government Documents Department
open access

Simion 3D Version 6.0 User`s Manual

Description: The original SIMION was an electrostatic lens analysis and design program developed by D.C. McGilvery at Latrobe University, Bundoora Victoria, Australia, 1977. SIMION for the PC, developed at the Idaho National Engineering Laboratory, shares little more than its name with the original McGilvery version. INEL`s fifth major SIMION release, version 6.0, represents a quantum improvement over previous versions. This C based program can model complex problems using an ion optics workbench that can h… more
Date: November 1, 1995
Creator: Dahl, D.A.
Partner: UNT Libraries Government Documents Department
open access

Y-12 site-specific earthquake response analysis and soil liquefaction assessment

Description: A site-specific earthquake response analysis and soil liquefaction assessment were performed for the Oak Ridge Y-12 Plant. The main purpose of these studies was to use the results of the analyses for evaluating the safety of the performance category -1, -2, and -3 facilities against the natural phenomena seismic hazards. Earthquake response was determined for seven (7), one dimensional soil columns (Fig. 12) using two horizontal components of the PC-3 design basis 2000-year seismic event. The c… more
Date: September 29, 1995
Creator: Ahmed, S.B.; Hunt, R.J. & Manrod, W.E. III
Partner: UNT Libraries Government Documents Department
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Physics design and scaling of Elise

Description: Elise is an electrostatically focused heavy-ion accelerator being designed and constructed at Lawrence Berkeley Laboratory. The machine is intended to be the first half of the four-beam Induction Linac Systems Experiment (ILSE), which ultimately will test the principal beam dynamics issues and manipulations of induction heavy-ion drivers for inertial fusion. Elise will use an existing 2 MeV injector and will accelerate space-charge-dominated pulses to greater than 5 MeV. The design objective of… more
Date: August 1, 1995
Creator: Lee, E. P.; Bangerter, R. O. & Chan, C. F.
Partner: UNT Libraries Government Documents Department
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POLARIZED PROTONS TRACKING IN THE AGS AND RHIC.

Description: A code, SPINK, to track polarized particles in a circular accelerator, in particular RHIC [1], is been used to: find conditions for safely crossing depolarizing resonances, using Siberian Snakes; find the best conditions to match the spin of the injected beam to the ring lattice; study the operation of Spin Rotators and study the beam-beam effects in a polarized proton collider.
Date: May 20, 1999
Creator: Luccio, A. U.
Partner: UNT Libraries Government Documents Department
open access

New enhancements to SCALE for criticality safety analysis

Description: As the speed, available memory, and reliability of computer hardware increases and the cost decreases, the complexity and usability of computer software will increase, taking advantage of the new hardware capabilities. Computer programs today must be more flexible and user friendly than those of the past. Within available resources, the SCALE staff at Oak Ridge National Laboratory (ORNL) is committed to upgrading its computer codes to keep pace with the current level of technology. This paper e… more
Date: September 1, 1995
Creator: Hollenbach, D.F.; Bowman, S.M.; Petrie, L.M. & Parks, C.V.
Partner: UNT Libraries Government Documents Department
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Modeling self-potential data in the Abraham and Meadow-Hatton geothermal systems: The search for upflow zones

Description: Computer code SPXCL is a finite difference modeling algorithm that calculates the response of embedded point sources within a rectangular, two-dimensional medium. The code calculates the electrical potential anywhere in the medium from thermal or pressure sources. This code is useful in calculating self-potential measurements that may be used to locate upflow zones in geothermal systems. Beginning in 1991 data on self-potential was collected at Abraham and Meadow-Hatton Hot Springs, two of the … more
Date: July 1, 1995
Creator: Schima, S.; Wilt, M. & Ross, H.
Partner: UNT Libraries Government Documents Department
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Documentation and verification of the SHAFT code; Yucca Mountain Site Characterization Project

Description: The SHAFT code incorporates equations to compute stresses in a shaft liner when the rock through which a shaft passes is subject to known three-dimensional states of stress or strain. The deformation modes considered are hoop deformation, axial deformation, and shear on a plane normal to the shaft axis. Interaction between the liner and the soil and rock is considered, and it is assumed that the liner is in place before loading is applied. This code is intended to be used interactively but crea… more
Date: December 1991
Creator: St. John, C. M.
Partner: UNT Libraries Government Documents Department
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SAMDIST: A computer code for calculating statistical distributions for R-matrix resonance parameters

Description: The SAMDIST computer code has been developed to calculate distribution of resonance parameters of the Reich-Moore R-matrix type. The program assumes the parameters are in the format compatible with that of the multilevel R-matrix code SAMMY. SAMDIST calculates the energy-level spacing distribution, the resonance width distribution, and the long-range correlation of the energy levels. Results of these calculations are presented in both graphic and tabular forms.
Date: September 1, 1995
Creator: Leal, L. C. & Larson, N. M.
Partner: UNT Libraries Government Documents Department
open access

A universal postprocessing toolkit for accelerator simulation and data analysis.

Description: The Self-Describing Data Sets (SDDS) toolkit comprises about 70 generally-applicable programs sharing a common data protocol. At the Advanced Photon Source (APS), SDDS performs the vast majority of operational data collection and processing, most data display functions, and many control functions. In addition, a number of accelerator simulation codes use SDDS for all post-processing and data display. This has three principle advantages: first, simulation codes need not provide customized post-p… more
Date: December 16, 1998
Creator: Borland, M.
Partner: UNT Libraries Government Documents Department
open access

STAR: Software Toolkit for Analysis Research

Description: This paper provides an update on the development of the Software Toolkit for Analysis Research (STAR). The goal of the STAR project is to produce a research tool that facilitates the development and interchange of algorithms for locating phenomena of interest in large quantities of data. The authors have applied this technology to the Space and Atmospheric Burst Reporting System (SAVRS) in support of the Knowledge Fusion Technologies project. Data from satellites was enhanced to contain evidenc… more
Date: September 1, 1995
Creator: Doak, J.; Prommel, J. & Hoffbauer, B.
Partner: UNT Libraries Government Documents Department
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SSPX simulation model

Description: An analytical approximation to an R-L-C circuit representing SSPX is shown to reproduce the observed capacitor bank efficiency and gun optimization data. As in the SPICE code, the spheromak gun is represented by a fixed resistance chosen to balance energy transfer to the gun. A revised estimate of the magnetic decay time in SSPX Shot 1822 then brings our estimate of the gun efficiency itself in line with the observed spheromak magnetic field for this shot. Prompted by these successes, we presen… more
Date: September 20, 1999
Creator: Fowler, T K
Partner: UNT Libraries Government Documents Department
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Documentation and verification of STRES3D, Version 4.0; Yucca Mountain Site Characterization Project

Description: STRES3D is a thermomechanical analysis code for predicting transient temperatures, stresses and displacements in an infinite and semi-infinite, conducting, homogeneous, elastic medium. The heat generated at the sources can be constant or decay exponentially with time. Superposition is used to integrate the effect of heat sources distributed in space and time to simulate the thermomechanical effect of placement of heat generating nuclear waste canisters in an underground repository. Heat sources… more
Date: December 1991
Creator: Asgian, M. I.; St. John, C. M.; Hardy, M. P. & Goodrich, R. R.
Partner: UNT Libraries Government Documents Department
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SYNCH: A program for design and analysis of synchrotrons and beamlines -- user`s guide

Description: SYNCH is a computer program for use in the design and analysis of synchrotrons, storage rings, and beamlines. It has a large repertoire of commands that can be accessed in a flexible way. The input statements and the results of the calculations they invoke are saved in an internal database so that this information may be shared by other statements. SYNCH is the first accelerator program to organize its input in the form of a language. The statements, which resemble sentences, provide a natural … more
Date: December 31, 1993
Creator: Garren, A. A.; Kenney, A. S.; Courant, E. D.; Russell, A. D. & Syphers, M. J.
Partner: UNT Libraries Government Documents Department
open access

Thermal and seismic impacts on the North Ramp at Yucca Mountain

Description: The impacts of thermal and seismic loads on the stability of the Exploratory Studies Facility North Ramp at Yucca Mountain were assessed using both empirical and analytical approaches. This paper presents the methods and results of the analyses. Thermal loads were first calculated using the computer code STRES3D. This code calculates the conductive heat transfer through a semi-infinite elastic, isotropic, homogeneous solid and the rafts thermally-induced stresses. The calculated thermal loads, … more
Date: May 1, 1994
Creator: Lin, M.; Hardy, M.P. & Jung, J.
Partner: UNT Libraries Government Documents Department
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SOURCES 4A: A Code for Calculating (alpha,n), Spontaneous Fission, and Delayed Neutron Sources and Spectra

Description: SOURCES 4A is a computer code that determines neutron production rates and spectra from ({alpha},n) reactions, spontaneous fission, and delayed neutron emission due to the decay of radionuclides. The code is capable of calculating ({alpha},n) source rates and spectra in four types of problems: homogeneous media (i.e., a mixture of {alpha}-emitting source material and low-Z target material), two-region interface problems (i.e., a slab of {alpha}-emitting source material in contact with a slab of… more
Date: September 1, 1999
Creator: Madland, D. G.; Arthur, E. D.; Estes, G. P.; Stewart, J. E.; Bozoian, M.; Perry, R. T. et al.
Partner: UNT Libraries Government Documents Department
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Version 1.00 programmer`s tools used in constructing the INEL RML/analytical radiochemistry sample tracking database and its user interface

Description: This report describes two code-generating tools used to speed design and implementation of relational databases and user interfaces: CREATE-SCHEMA and BUILD-SCREEN. CREATE-SCHEMA produces the SQL commands that actually create and define the database. BUILD-SCREEN takes templates for data entry screens and generates the screen management system routine calls to display the desired screen. Both tools also generate the related FORTRAN declaration statements and precompiled SQL calls. Included with… more
Date: September 1, 1995
Creator: Femec, D.A.
Partner: UNT Libraries Government Documents Department
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Computed isotopic inventory and dose assessment for SRS fuel and target assemblies

Description: Past studies have identified and evaluated important radionuclide contributors to dose from reprocessed spent fuel sent to waste for Mark 16B and 22 fuel assemblies and for Mark 31 A and 31B target assemblies. Fission-product distributions after a 5- and 15-year decay time were calculated for a ``representative`` set of irradiation conditions (i.e., reactor power, irradiation time, and exposure) for each type of assembly. The numerical calculations were performed using the SHIELD/GLASS system o… more
Date: June 19, 1995
Creator: Chandler, M.C.; Ketusky, E.T. & Thoman, D.C.
Partner: UNT Libraries Government Documents Department
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SURFSCAN: Program to operate a LASER profilometer. Yucca Mountain Site Characterization Project

Description: This paper is written to document the SURFSCAN program. A large section of the code is devoted to error recovery. The heavy emphasis on error recovery allows unattended operation for extended periods. By combining error recovery with the use of control files, SURFSCAN has been operated for periods of several days with no operator intervention. At this time, the Surface Profilometer is a useful and productive tool in the Rock Mechanics Laboratory at Sandia National Laboratories/New Mexico. In th… more
Date: September 1, 1995
Creator: Hardy, R.D.
Partner: UNT Libraries Government Documents Department
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Scale 4.4 Validation for the DFS System at SRS

Description: The document is a compilation of the work to date dealing with the validation of the CSAS25 sequence in SCALE 4.4. using the 27-group ENDF/B-IV and the 238-group ENDF/B-V cross section libraries, executed on the Digital Equipment Alpha Processors workstation cluster at WSMS. Revisions to this document will be made as new validation information is generated; therefore, this document should be used as the reference point for bias and bias uncertainties for SCALE 4.4-related work. This initial iss… more
Date: October 7, 1999
Creator: Blanchard, A.
Partner: UNT Libraries Government Documents Department
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SCDAP/RELAP5/MOD 3.1 code manual: User`s guide and input manual. Volume 3

Description: The SCDAP/RELAP5 code has been developed for best estimate transient simulation of light water reactor coolant systems during a severe accident. The code models the coupled behavior of the reactor coolant system, core, fission product released during a severe accident transient as well as large and small break loss of coolant accidents, operational transients such as anticipated transient without SCRAM, loss of offsite power, loss of feedwater, and loss of flow. A generic modeling approach is u… more
Date: June 1, 1995
Creator: Coryell, E. W.; Johnsen, E. C. & Allison, C. M.
Partner: UNT Libraries Government Documents Department
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Proposed additions to the SHADOW ray-tracing code for general-asymmetric perfect-crystal optics

Description: The dynamical theory of the diffraction of X-rays from perfect crystals is traditionally expressed in terms of Maxwell`s equations using a semi-classical theory originally due to Ewald and von Laue. Combining the work of Batterman and Cole, Caticha and Caticha-Ellis, and Zachariasen, a formalism is obtained that treats the general asymmetric, thick and thin crystal, Laue and Bragg cases within the second order dispersion surface approximation. The authors have implemented this formalism with th… more
Date: December 1, 1993
Creator: Blasdell, R. C. & Macrander, A. T.
Partner: UNT Libraries Government Documents Department
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