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Prompt Burst Energetics in the oxide/sodium system. [LMFBR]

Description: A series of twelve Prompt Burst Energetics (PBE) experiments utilizing fresh uranium dioxide fuel pins in stagnant sodium coolant has been performed in Sandia Laboratories' Annular Core Pulse Reactor (ACPR). Results and analysis described in the paper include: observation of FCIs (pressures up to 32 MPa) in the UO/sub 2//Na system, some apparently triggered by small pressure transients (2 MPa); prediction of failure times via the pin model EXPAND; observed thermal-to-mechanical energy conversion ratios up to approximately 0.4%; and identification of potential reactivity effects caused by the pre- and post-failure motion of fuel.
Date: January 1, 1979
Creator: Reil, K.O. & Young, M.F.
Partner: UNT Libraries Government Documents Department

Prompt Burst Energetics (PBE) experiment analyses using the SIMMER-II computer code. [LMFBR]

Description: Two of the Prompt Burst Energetics (PBE) in-pile experiments conducted at Sandia Laboratories PBE-5S and PBE-SG2, have been investigated with SIMMER-II. These two tests utilize fresh uranium oxide and fresh uranium carbide pins, respectively, in stagnant sodium. The purpose of the analysis is to investigate the applicability of SIMMER-II to this type of experiment. Qualitative agreement with measured data is seen for PBE-5S. PBE-SG2 results agree somewhat less well but demonstrate SIMMER-II's potential for describing fuel-coolant-interactions with further model development.
Date: January 1, 1979
Creator: Tomkins, J.L.; Hitchcock, J.T. & Young, M.F.
Partner: UNT Libraries Government Documents Department

[News Clip: Blacksmith]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: February 4, 1979, 10:00 p.m.
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections

Procedure for the assessment of material control and accounting systems

Description: For the United States Nuclear Regulatory Commission, a procedure was developed and tested for the evaluation of Material Control and Accounting (MC and A) Systems at nuclear fuel facilities. This procedure, called the Structured Assessment Approach, SAA, subjects the MC and A system at a facility to a series of increasingly sophisticated adversaries and strategies. A fully integrated version of the computer codes which assist the analyst in this assessment will become available in October 1979. The concepts of the SAA and the results of the assessment of a hypothetical but typical facility are presented.
Date: July 9, 1979
Creator: Parziale, A.A. & Sacks, I.J.
Partner: UNT Libraries Government Documents Department

[News Clip: CETA]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: February 16, 1979, 10:00 p.m.
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections

[News Clip: Azle FOLO]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: February 27, 1979, 6:00 p.m.
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections

[News Clip: Infant]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: February 9, 1979, 5:00 p.m.
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections

Photoelectronic properties of zinc phosphide crystals, films and heterojunctions. Quarterly progress report No. 1, February 26-June 30, 1979

Description: A closed tube method has been developed for the synthesis of Zn/sub 3/P/sub 2/ from the elements which eliminates the potential dangers associated with high P pressures. Subsequent materials synthesis will be done routinely by this method. Initial efforts at single crystal growth of Zn/sub 3/P/sub 2/ from this material yielded polycrystalline material because of nucleation along the walls of the tube. Techniques for improving the situation are being tested. Wafers of large-grain polycrystaline Zn/sub 3/P/sub 2/ have been received from Dr. A. Catalano at Delaware and will be used for exploratory research in the quarter ahead. Progress is reported on the development of a CVD apparatus for the deposition of wide bandgap oxides and sulfides on a variety of substrates including Zn/sub 3/P/sub 2/. Layer deposition by the close spaced vapor transport method to be applied to Zn/sub 3/P/sub 2/ was successfully tested using CdTe on both quartz and CdS substrates.
Date: July 1, 1979
Creator: Bube, R.H.
Partner: UNT Libraries Government Documents Department

[News Clip: Cop funeral]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: February 15, 1979, 6:00 p.m.
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections

Pion nucleon interaction at low energy

Description: A theory of the ..pi..N interaction at low energy is described. An analogy is made with an unusual approach to potential scattering theory. Phase shifts, cross sections, and scattering amplitudes and lengths are calculated. 28 references. (JFP)
Date: March 1, 1979
Creator: Banerjee, M.K.
Partner: UNT Libraries Government Documents Department

Use of adaptive optimal control to provide energy conservation in large buildings

Description: The use of an adaptive linear regulator approach for controlling heating, ventilating, and air-conditioning (HVAC) systems in large buildings is discussed. The control manifestations of this approach are compared with those found in conventional applications. The salient features of the approach are discussed, and simulation results are presented. Implementation is discussed, and economic estimates for commercial use of this approach are also presented.
Date: January 1, 1979
Creator: Farris, D.R. & Miller, D.E.
Partner: UNT Libraries Government Documents Department

Use of granular acivated carbon to remove trace organics from the effluent of a Class-B refinery: a case study

Description: A recent study by Raphaelian and Harrison (1978) at SOHIO's Toledo refinery demonstrated that the activated sludge biological treatment system reduced concentrations of trace organic compounds in the waste water by over 99%. Addition of a pilot-scale mixed media filter and granular activated carbon (GAC) filter produced additional removals ranging from 12 to 98% for those compounds that could be quantified. The estimated cost of adding a full-scale GAC system to the SOHIO refinery is $6,800,000. The yearly operational cost for an 8.6 MGD flow is $1,720,000, including amortization, and the annual energy requirement is estimated at 12.775 x 10/sup 6/ kwh(e); this is equivalent to 2.2 x 10/sup 4/ bbl crude oil, or 0.0503% of average annual refinery throughput.
Date: January 1, 1979
Creator: Flotard, R D; Ford, D L & Harrison, W
Partner: UNT Libraries Government Documents Department

Theory and application of the coded aperture fuel motion detection system

Description: A fuel motion detection system based on coded aperture imaging has been developed for the Annular Core Research Reactor. Its configuration evolved after investigations were carried out to determine the required system capabilities. The reactor environment, developments in the theory of coded apertures for nuclear radiations and compatibility with prototypical geometries were considered. The system was fabricated and inserted into the ACRR where it has recorded the fuel motion from a single pin subjected to loss of flow accident conditions. In addition, computer simulations have shown that in the reactor environment and for fast data acquisition, coded imaging, particularly with uniformly redundant arrays, offers significant advantages over pinhole camera geometries. The extension of this technique toward imaging of 37-pin bundles and imaging with fast neutrons is also being investigated.
Date: January 1, 1979
Creator: Kelly, J.G.; Stalker, K.T.; McArthur, D.A.; Chu, K.W. & Powell, J.E.
Partner: UNT Libraries Government Documents Department

Tempering of accounts and records to disguise SNM theft

Description: A typical nuclear material accounting system employing double-entry bookkeeping is described. A logic diagram is used to model the interactions of the accounting system and the adversary when he attempts to thwart it. Boolean equations are derived from the logic diagram; solution of these equations yields the accounts and records through which the adversary may disguise SNM theft and the collusion requirements needed to accomplish this feat.
Date: July 1, 1979
Creator: Lim, J.J. & Huebel, J.G.
Partner: UNT Libraries Government Documents Department

Temperatures generated by underground storage of defense waste canisters

Description: For conditions conducive to leaching, i.e., moisture in contact with glass, the glass surface temperature would essentially be the canister cavity temperature because temperature rises across wet annuli are small. In turn, canister cavity temperatures are dominated by canister spacing for a given canister power and decay curve. Actual canister powers may be as much as 40% less than those used for these calculations. For dry salt in contact with the storage container, the temperature rises across the annuli may be large. The container temperature would tend to peak earlier for dry annuli than for wet annuli. When canister cavity temperatures peak, salt temperatures would be increased over normal approximately 500 feet in any direction extending from the repository. 5 figures.
Date: January 1, 1979
Creator: Tennant, M.H.
Partner: UNT Libraries Government Documents Department

Borehole-inclusion stressmeter measurements in bedded salt

Description: Sandia purchased borehole-inclusion stressmeters from a commercial supplier to measure in situ stress changes in bedded salt. However, the supplied stressmeters were difficult to set in place and gave erratic results in bedded salt. These problems were overcome with a new extended platen design. Also a straingaged transducer was designed which can be read with a conventional data logger. Due to the nonlinear behavior of bedded salt under uniaxial loading, a new empirical calibration scheme was devised. In essence, the stressmeters are calibrated as force transducers and this calibration curve is then used to determine the relationship between uniaxial stress changes in bedded salt and the gage's output. The stressmeter and calibration procedures have been applied under mine conditions and produced viable results. Future work will involve finite element analysis to calculate the observed behavior of the stressmeters. The response of the stressmeters in bedded salt is neither that of a true stressmeter. However, repeatable calibrations make the gages very useful.
Date: January 1, 1979
Creator: Cook, C.W. & Ames, E.S.
Partner: UNT Libraries Government Documents Department

Trombe walls and direct gain: patterns of nationwide applicability

Description: The economic performance of Trombe wall and direct gain passive solar heating designs are elevated on a nationwide basis using the LASL/UNM solar economic performance code. Both designs are integrated into a ranch style tract home concept thereby facilitating regional comparisons. Solar add-on costs are established for each design with regional differences in material and labor prices accounted for at each site. System sizes are optimized against the natural gas and electric resistance heating alternatives, the current price and future escalation of which is established for each locale. Results for each passive solar design are summarized on a state-by-state basis followed by a discussion of their comparative economic performance. General conclusions from the comparative analysis are drawn about the appropriatness of each design in each region.
Date: January 1, 1979
Creator: Noll, S.A.; Roach, J.F. & Ben-David, S.
Partner: UNT Libraries Government Documents Department

Two-stream instability for a scattered beam propagating in a collisional plasma

Description: Significant progress was made in the understanding of the collisional stabilization of the high-frequency two-stream instability in a relativistic electron beam through a rigorous Vlasov treatment. Substantially different scaling with parameters are obtained in comparison with previous, essentially phenomenological, models and we have gained insight into the mechanism of the stabilization process. Further investigation of the 2-D case remains to be done. The issue of stabilization of the two-stream instability in finite geometry is as yet unexplored as is that of nonlinear saturation, by trapping, of the instability in the presence of momentum spread on the beam and collisions on the plasma electrons. These are important in the application of relativistic electron beams to the heating of dense plasmas and possibly in the interpretation of neutral gas propagation experiments. Extension of our research into these areas will necessarily rely on the investigations outlined above.
Date: January 1, 1979
Creator: Newberger, B.S. & Thode, L.E.
Partner: UNT Libraries Government Documents Department