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SWAN: a code for the analysis and optimization of fusion reactor nucleonic characteristics

Description: This report is intended as a User's Manual for SWAN''--- a code written for perturbation theory analysis and optimization of the nucleonic characteristics of fusion reactor blankets. SWAN is also applicable to any problem described by the inhomogeneous linear transport equation, e.g., radiation shield problems. The optimization method is based on variational techniques. The variables of the optimization are material densities, with no restriction on their number. One joint restra… more
Date: November 1, 1973
Creator: Greenspan, E.; Price, W. G. Jr. & Fishman, H.
Partner: UNT Libraries Government Documents Department
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Experimental evaluation of fission-gas release in LMFBR subassemblies using an electrically heated test section with sodium as coolant

Description: A description is given of an out-of-pile experiment which simulated fission-gas release in current-design uranium-oxide fuel subassemblies of liquid- metal-cooled fast breeder reactors (LMFBR's) and which was performed to evaluate the potential for pin-to-pin failure propagation due to thermal transients induced in adjacent fuel pins. A sodium-cooled test section containing three electrically heated pins was used. Gas (angon or xenon), injected as a jet through a needle protruding into the… more
Date: July 1, 1973
Creator: Wilson, R. E.; van Erp, J. B.; Chawla, T. C.; Kimont, E. L. & Baldwin, R. D.
Partner: UNT Libraries Government Documents Department
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Review of Brookhaven National Laboratory superconducting power transmission program

Description: ABS>Research is being conducted at Brookhaven National Laboratory to develop a superconducting ac cable system leading to the construction of a 1/2 mile model cable of 200 MVA capacity at Brookhaven and a cable of larger (>2000 MVA) capacity for test at a utility testing site. It is a coaxial cable of flexible design using Nb/sub 3/Sn superconductor, and a tape wound dielectric, helium impregnated, of a material yet to be determined. The research development is reported on the dielectric materi… more
Date: October 11, 1973
Creator: Jensen, J. E.
Partner: UNT Libraries Government Documents Department
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Method of inspecting dielectric materials at microwave frequencies

Description: A successful method of screening high-dielectric-constant, nonmagnetic, high-loss-factor materials at microwave frequencies was developed to provide material control by incoming inspection. This is accomplished by measuring the S parameters of the material---reliance on the manufacturer's permittivity data and x-ray examination for voids and inclusions is no longer necessary. Use of an automatic network analyzer makes 100% inspection economically feasible. (auth)
Date: November 1, 1973
Creator: O'Dell, G.D.
Partner: UNT Libraries Government Documents Department
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Radiological evaluations for advanced waste management studies

Description: The overall risk evaluation for various radioactive waste management concepts includes calculation of radiation doses to individuals and local populations. Radiation doses are the most appropriate measure of the consequences of unforeseen releases of radioactive materials to the environment and dose criteria are available by which the severity may be judged. A comprehensive dose computational model, developed and used for other Atomic Energy Commission studies, has been adopted to improve its f… more
Date: September 1, 1973
Creator: Denham, D. H.; Baker, D. A.; Soldat, J. K. & Corley, J. P.
Partner: UNT Libraries Government Documents Department
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Voltage holding considerations for direct-collection units

Description: Results have been obtained from initial experiments designed to study high-voltage breakdown under conditions of importance to the design of direct- collection units. A coaxial configuration was used to mock-up critical fields near grid wires. With appropriate heat conditioning, fields as high as 9.6 x 10/ sup 5/ V/cm were maintained at the surface of a 7-mil-diam tungsten wire. This represents an enhanced field of ~10/sup 8/V/cm at whisker'' sites. Breakdown criteria are proposed for three reg… more
Date: December 1, 1973
Creator: Miley, George H.
Partner: UNT Libraries Government Documents Department
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Drainage and Erosion Control Facilities: Field Performance Investigation

Description: Partial summary: "The drainage and erosion control facilities of 54 installations were observed to evaluate performance of surface and subsurface drainage systems, erosion control measures, and conditions of buried conduits and associated facilities. Although the facilities observed varied from only 1 to 30 years or more of age and it is recognized that basic demands have increased as well as the fact that design and construction procedures have been improved continuously, many of the old famil… more
Date: June 1973
Creator: Grace, John L., Jr.; Calhoun, C. C., Jr. & Brown, D. N.
Partner: UNT Libraries Government Documents Department
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Results from the one box kinetics-transport code

Description: Preliminary results are presented from calculations concerning the kinetics and transport of a single SST exhaust plume. Curves are shown that exhibit the effect of different transport rates on axis ozone concentration and total ozone destruction per unit plume length. (auth)
Date: September 26, 1973
Creator: Walton, J. J.
Partner: UNT Libraries Government Documents Department
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High-$beta$ capture and mirror confinement of laser-produced plasmas. Semiannual report, February 1--July 31, 1973

Description: The United Aircraft Research Laboratories are engaged in a program to investigate the use of a dense, mirror-confined, laser-produced plasma as the target for a neutral-injection beam and to examine this technique for establishing and maintaining a high-temperature, high-density, steady-state, mirrorconfined fusion plasma. The program is a direct extension of the current UARL investigations of the capture and confinement of laser-produced plasmas in a minimum-B mirror field. The overall program… more
Date: July 31, 1973
Creator: Haught, A.F.; Polk, D.H.; Woo, J.T.; Fader, W.J.; Tomlinson, R.G.; Jong, R.A. et al.
Partner: UNT Libraries Government Documents Department
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New computer technology to be applied to decision making process

Description: Much of what is presented here is indicative of our national trends in computing. To review and bring in the international scope at the same time, the following points are enumerated: 1. There are but few new ventures in the competition for the high performance end of the computer market. 2. The competition for the middle range of computers is very great internationally. 3. The number and varieties of minicomputers are growing at a phenomenal rate throughout the world. There is no question but … more
Date: August 1, 1973
Creator: Fernbach, S.
Partner: UNT Libraries Government Documents Department
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Multiparticle detector for ISABELLE

Description: The proposed multiparticle spectrometer is designed to study particles produced at small angles (0.5 < theta < 20 mr). It is assumed to be part of a larger set-up, where the larger angles are covered by other spectrometers, or at least a 4 pi detector, such as described by Arnold et al. (CRISP 72-65). The general layout consists of 4 magnets in a symmetrical arrangement. A set of proportional chambers downstream from the first set of magnets can measure both angle and momentum. Using a second p… more
Date: November 1, 1973
Creator: Kirz, J.
Partner: UNT Libraries Government Documents Department
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Experimental techniques for studying grain boundary chemistry

Description: From international summer school on grain boundaries; Montreal, Canada (2 Jul 1973). A review of the techniques used to study the chemistry of near grain boundary regions is given. The traditional techniques of radiography, chemical etching, and microprobe are discussed and their limitations are pointed out. New techniques are presented such as ion scattering spectrometry, electron spectroscopy for chemical analysis, ion backscattering spectrometry, and Auger electron spectroscopy. The success … more
Date: January 1, 1973
Creator: Stein, D. F.; Johnson, W. C. & White, C. L.
Partner: UNT Libraries Government Documents Department
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Development of MC2730 RTG thermopile side contact attachment process

Description: Gold plated Kovar pads were eutectic bonded to p and n-type SiGe specimens using a 98 wt% AuSi preform alloy. This joining technique was shown to yield strong reliable bonds. A method based on this technique is described for producing bonding pads to the outermost elements of the MC2730 RTG thermopile. (auth)
Date: September 1, 1973
Creator: Yost, F.G.
Partner: UNT Libraries Government Documents Department
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Fast reactor analytical shielding progress report for July and August 1973. 189a No. 10318, activity No. HN 04 01 01 1

Description: Analytical shielding work performed for the fast reactor program during the months of July and August included calculations for both the FFTF and the Demo plant, computer code development, analyses of TSF experiments, and a cross- section sensitivity study of a TSF experiment. Most of the FFTF studies were aimed at determining the effect of various design changes on the dose rates at the maintenance deck during reactor operation, in particular, the effects of penetrations through the radial cav… more
Date: November 1, 1973
Creator: Abbott, L. S.; Childs, R. L.; Engle, W. W. & Maerker, R. E.
Partner: UNT Libraries Government Documents Department
open access

Hard superconducting materials. Final report

Description: During the period covered by this program (1962-1971). extensive studies of the material parameters and mechanisms controlling critical currents, flux creep and inreversiblity in hand superconducting materials were carried out. Quantitative theories of the pinning and creep processes were developed and tested extensively using equipment and methods developed locally. The role of the superconducting surface sheath was explored in detail and somewhat similar phenomena were found to operate there.… more
Date: January 1, 1973
Creator: Silcox, J. & Webb, W.W.
Partner: UNT Libraries Government Documents Department
open access

Versatile rock-melting system for the formation of small-diameter horizontal glass-lined holes

Description: Rock-melting penetrators with diameters ranging from 50 mm (2 in.) to 76 mm (3 in.) have reached a stage of development at the Los Alamos Scientific Laboratory (LASL) which suggests that these devices are ready for practical application. Prototype refractory metal penetrators have formed glass-cased vertical holes of 26 m (82 ft) in a single run, and horizontal holes with diameters up to 127 mm (5 in.) are expected in the near future. These small horizontal holes can be used for underground uti… more
Date: October 1, 1973
Creator: Sims, D.L.
Partner: UNT Libraries Government Documents Department
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TART calculations using the new 2021 energy group cross section library compared with B. Czirr&#x27;s resonance self-shielding experiments

Description: Results from calculations using a 2021-energy-group cross section library with sufficient energy definition in the lower energy range to resolve the known resorances in /sup 239/Pu and /sup 235/U are compared with flat-plate resorance self-shielding experimental data. The results are somewhat ambiguous. The lower energy ranges appear to agree better with experimental data for small areal densities, but disagree more as the areal density increases. (20 figures) (RWR)
Date: November 13, 1973
Creator: Bacon, L.
Partner: UNT Libraries Government Documents Department
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Long-term stability of Alnico 5 and 8 magnets at 700 to 1200$sup 0$F

Description: Tests performed to determine the long-term stability of Alnico 5 and 8 magnets for use in permanent magnet in-core sodium flowmeters are described. The results of this experiment showed that two processes combine to affect magnetic stability of these magnets at temperatures above 700 deg F: loss of field strength with time, the rate of loss increasing with temperature, and partial recovery of the loss caused by a high-temperature stabilization. The conclusion is that for a given temperature the… more
Date: November 1, 1973
Creator: Forster, G.A.
Partner: UNT Libraries Government Documents Department
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Bubble formation and growth

Description: No Description Available.
Date: July 1, 1973
Creator: Berry, G.F.
Partner: UNT Libraries Government Documents Department
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