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Monte Carlo calculations of 14-MeV neutron multiplication in thick beryllium assemblies and comparison with experimental results

Description: Integral experiments performed at the Institute for Reactor Development at Juelich, West Germany, have raised doubts about the adequacy of current nuclear data and calculational methods in predicting neutron multiplication and leakage from beryllium assemblies bombarded with 14-MeV neutrons. Experimental values of inferred neutron multiplication were reported to be less than calculated values by approx. 25%. We have performed calculations of the experiments using the TART Monte Carlo code. The … more
Date: February 29, 1984
Creator: Doyle, J. C. Jr. & Lee, J. D.
Partner: UNT Libraries Government Documents Department
open access

Safety analysis of the nuclear chemistry Building 151

Description: This report summarizes the results of a safety analysis that was done on Building 151. The report outlines the methodology, the analysis, and the findings that led to the low hazard classification. No further safety evaluation is indicated at this time. 5 tables.
Date: June 29, 1984
Creator: Kvam, D.
Partner: UNT Libraries Government Documents Department
open access

Hot corrosivity of coal conversion product on high temperature alloys. Final report

Description: This report describes research begun under Contract AS01-76-ET-10577, most of which was continued when the same project was continued under a new number, Contract AC01-79-ET-13547. The areas studied are thermochemistry of high temperature corrosion, hot corrosion of turbine alloys and coatings, and electrochemistry of sulfate melts. A background to the problem of hot corrosion is presented first followed by a description of results obtained in the three areas of this project.
Date: August 29, 1984
Creator: Meier, G.H.
Partner: UNT Libraries Government Documents Department
open access

The Positron Flux Concentrator - An Update

Description: The type of concentrator that has been under study (on and off) for the last two years is shown. The work was started by Dave Sherden and Co., and the object of the study was (and still is) to determine the correct parameters which will give the correct field in the central region which captures the maximum number of e/sup +/'s from the target. This note contains two sections. The first is a simplified model which seems to agree with most of the measurements carried out. The second describes th… more
Date: August 29, 1984
Creator: Bulos, Fatin
Partner: UNT Libraries Government Documents Department
open access

I-129 in SRP high-level waste and saltstone

Description: Long-lived isotopes in nuclear waste can have the greatest impact on man and the environment because of the integrated dose over a long time period. Many long-lived radioactive isotopes are present in the waste at Savannah River Plant. Actinide elements make up a significant portion of these isotopes. But when the waste is incorporated into a glass waste form, the actinides are converted to chemically stable oxide species that are released at extremely low and controlled rates, even after the w… more
Date: February 29, 1984
Creator: Fowler, J. R. & Cook, J. R.
Partner: UNT Libraries Government Documents Department
open access

Cooldown to residual heat removal entry conditions using atmospheric dump valves and auxiliary pressurizer spray following a loss-of-offsite power at Calvert Cliffs, Unit 1

Description: An investigation of cooldown using atmospheric dump valves (ADVs) and auxiliary pressurizer spray (APS) following loss-of-offsite power at Calvert Cliffs-1 showed residual heat removal entry conditions could not be reached with the plant ADVs alone. Use of APS with the plant ADVs enhanced depressurization, but still provided insufficient cooldown. Effective cooldown and depressurization was shown to occur when rated steady state flow through the ADVs was increased by a factor of four. 6 refs., … more
Date: November 29, 1984
Creator: Jenks, R.P.
Partner: UNT Libraries Government Documents Department
open access

Calculation of transmission line impedances using the ANSYS finite element program

Description: This paper describes numerical techniques for calculating the capacitance of an arbitrary two conductor structure. For two dimensional structures the capacitance per unit length can be easily related to the characteristic impedance of a transmission line with the same cross section. Note that this is true for lines operated below their cut off frequency, i.e., TEM mode only. Thus, one can compute the impedance of an arbitrarily shaped line. The method using the ANSYS finite element program is b… more
Date: June 29, 1984
Creator: Johnson, M. E.
Partner: UNT Libraries Government Documents Department
open access

Light source job list and plan: Part 1

Description: This note is intended to describe our current thinking and to show interconnections of various subtasks. The discussed topics are: (1) Storage Ring Group - A. Refinement of lattices to include: photons from bending magnets, dynamic aperture studies, refinement of accelerator physics straight section, B. Non-standard lattice, C. Touschek lifetime, D. Gas scattering lifetime, E. BBI (bunched beam instabilities), F. Magnet error considerations, G. tracking of particles, H. Orthogonal adjustments o… more
Date: October 29, 1984
Creator: Cho, Y.
Partner: UNT Libraries Government Documents Department
open access

Standby Draft Registration

Description: No Description Available.
Date: May 29, 1984
Creator: Goldich, Robert L.
Partner: UNT Libraries Government Documents Department
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