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710 Mockup No. 1 critical experiment. Summary data report

Description: Declassified 21 Sep 1973. A summary of the experiments associated with the three uniformly loaded core configurations related to the 710 Mockup 1 Critical Experiment Reactor is presented. These configurations mocked up specific features of the then current 710 reactor experiment design. The experimental areas included initial loading, neutron lifetime, fission ratios, reflector control methods, reactivity coefficients and power distribution measurements. A major portion of the effort was applied to the latter two areas to determine the comparative effects between normally used fuel cells composed of rod-type materials and homogeneous fuel cells using fabricated fuel compacts''. 7 references. (auth)
Date: October 21, 1966
Creator: Sims, F. L.; Kunze, J. F.; Pincock, G. D. & Chase, P. L.
Partner: UNT Libraries Government Documents Department
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ADDITIONAL ANALYSIS OF THE SL-1 EXCURSION. Final Report of Progress, July- October 1962

Description: Work was carried out to obtain significant data on reactor excursions, in particular the SL-1 excursion, to extend the analysis of reactor transient behavior so as to obtain an improved understanding of the thermal and mechanical processes that take place during and following a reactor excursion, and to obtain chemical, metallurgical, and nuclear data relative to the pre-accident performance of the SL-1. Laboratory investigations were made of samples of the SL-1 power plant. Results are given and their significance discussed. An attempt was made to construct a mathematical model of reactor excursions, based partly on fundamental thermodynamic and nuclear considerations, and using some empirical results. This model was applied to SPERT and BORAX excursions with some success. Recommendations concerning reactor design and operation, which have arisen from the SL-1 accident and its analysis, are summarized. Results are presented in tables and graphs. (M.C.G.)
Date: November 21, 1962
Partner: UNT Libraries Government Documents Department
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AN ALGOL 60 SYNTAX CHECKER FOR THE IBM 7090 COMPUTER

Description: A syntax checker was designed based on the syntax of Algol as previously described. It was desirable to design the syntax checker as a set of mutually recursive processors tied together by building blocks which perform certain bookkeeping functions. Because of the recursive nature of the language and of the syntax checker, the problem of recovery after an error required much attention. A method was devised which permits most programs to be checked completely despite errors. The syntax checker was implemented for the IBM 7090 as a part of the SHARE ALGOL processor, and has operated very satisfactorily. (auth)
Date: March 21, 1963
Creator: Lietzke, M.P.
Partner: UNT Libraries Government Documents Department
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Analysis of E-N target conversion data

Description: Production efficiency studies of the E-N loading require that conversion ratio values for both plutonium and tritium be defined. Changing of the core-loading charge makeup with each core load to obtain a more efficient loading has theoretically resulted in increasing the tritium conversion ratio. Tritium recovery data from the third H Reactor E-N loading has recently become available for analysis. The buildup of product is much slower in fringe blanket material then in core target pieces. The second group of fringe conversion ratio data has only recently been obtained for analysis, the material analyzed was from the DR Reactor, irradiated under conditions closely paralleling those in the H Reactor blanket load. This document reports the conversion efficiencies for tritium production in Hanford E-N core and blanket loadings `indicated by these most recent data.
Date: November 21, 1963
Creator: Carter, R. D.
Partner: UNT Libraries Government Documents Department
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ANGULAR DISTRIBUTION OF FRAGMENTS FROM FISSION INDUCED BY HEAVYIONS IN GOLD AND BISMUTH

Description: We present the results of measurements of the angular distribution of fission fragments produced by irradiation of Au{sup 197} and Bi{sup 209} with various heavy ions. The projectiles, B{sup 11}, C{sup 12}, N{sup 14}, and O{sup 16}, had energies from a few MeV above the Coulomb barrier to 10.4 MeV per nucleon. The gross features of these results can be explained by use of a model and parameters that have been used by others to account for angular distributions of fission fragments from helium-ion bombardments. In detail, however, these results appear to indicate that the models used to predict the average value of the angular momentum of the compound nucleus give values too low near the Coulomb barrier. Furthermore, at high bombarding energies it is necessary to consider the fact that appreciable direct interaction is taking place.
Date: May 21, 1962
Creator: Viola, Victor E.; Thomas, T. Darrah & Seaborg, Glenn T.
Partner: UNT Libraries Government Documents Department
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Basic Magnetic Quantities and the Measurement of the Magnetic Properties of Materials

Description: From Introduction: "The work of the Magnetic Measurements Section of the National Bureau of Standards includes (1) testing of specifically prepared test specimens intended for use as standards for checking magnetic testing apparatus (2) investigation and development of magnetic testing apparatus (3) calibration of mutual inductors, test coils, and instruments for measuring magnetic fields, and (4) investigations in the field of magnetics such as studies of phenomena associated with nuclear magnetic resonance or the selection and testing of materials suitable to be used as standards of magnetic susceptibility."
Date: May 21, 1962
Creator: Sanford, Raymond L. & Cooter, Irvin L.
Partner: UNT Libraries Government Documents Department
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