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Theoretical Feedback Analysis in Boiling Water Reactors

Description: The dynamic behavior of boiling-water reactors for small perturbations was investigated in a systematic way. General expressions for the transfer functions associated with the individual feedback mechanisms were obtained for an arbitrary flux distribution, weighting function, and steam velocity distribution. Specific forms were derived in the case of a first power flux weighting, a uniform steam velocity distribution, and a sinusoidal flux distribution with an adjustable wave length. These form… more
Date: October 1, 1960
Creator: Akcasu, A. Ziya
Partner: UNT Libraries Government Documents Department
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A RESONANCE IN THE Lambda pi SYSTEM

Description: The authors report a study of the reaction K{sup -} + p {yields} {Lambda}{sup 0} + {pi}{sup +} + {pi}{sup -} produced by 1.15 Gev/c K{sup -} mesons and observed in the Lawrence Radiation Laboratory's 15-in. hydrogen bubble chamber. A preliminary report of these results was presented at the 1960 Rochester Conference. The beam was purified by two velocity spectrometers. A hyperon/observed during the run and the preliminary cross sections for various K{sup -} reactions at 1.15 Bev/c have been repo… more
Date: October 24, 1960
Creator: Alston, Margaret; Alvarez, Luis W.; Eberhard, Philippe & Wojcicki, Stanley G.
Partner: UNT Libraries Government Documents Department
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Instructions for the Operation of an ORACLE Code for a Monte Carlo Solution of the Transport Problem for Gamma Rays Incident Upon a Slab

Description: A program has been coded for the ORACLE which will solve, using Monte Carlo technique, the transport problem for monodirectional, monoenergetic gamma radiation incident at an angle Θ, upon an infinite laminated slab of finite thickness. Each of the laminations (or regions) is itself an infinite, homogeneous slab of finite thickness. The code is designed to give estimates of energy deposition, energy flux, tissue dose rate, reflected and transmitted energy current, and the angular and energy dis… more
Date: October 26, 1960
Creator: Aulender, S. & Trubey, D. K.
Partner: UNT Libraries Government Documents Department
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Production Test IP-358-AC: Replacement of carbon dioxide with nitrogen as a constituent of the K reactor atmosphere

Description: Compensation for the positive long-term reactivity transient associated with Hanford reactor may be accomplished in two ways: The addition of a poisonous material (rods, splines, etc.) to the reactor, or cooling the moderator by changing the gas composition. The objective of this study is to investigate the reactivity and temperature effects and the associated operating problems if any, resulting from the use of nitrogen instead of carbon dioxide as a constituent of the reactor atmosphere.
Date: October 3, 1960
Creator: Bailey, G. F. & Benoliel, R. W.
Partner: UNT Libraries Government Documents Department
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Compatibility of SNAP Fuel and Clad Materials

Description: Samples capsules containing buttons of materials of interest for SNAP fuel elements were held at temperatures up to 1600°F , in hydrogen, under a 20-tsi load for 200+ hours.
Date: October 15, 1960
Creator: Balkwill, J.K.
Partner: UNT Libraries Government Documents Department
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Mixing of a Cold Liquid Jet With a Boiling Liquid Stream

Description: The turbulent mixing of a cold liquid jet with a stream of vapor bubbles and saturated liquid is analyzed for a single axial liquid jet. The cases where the issuing jet velocity is very much greater than and nearly equal to the free stream velocity are considered. Transport of axial momentum and of scalar quantities in the stream are calculated and the results applied to the transport of enthalpy in a bubbly mixture. (D.L.C.)
Date: October 21, 1960
Creator: Bankoff, S. G.
Partner: UNT Libraries Government Documents Department
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The Path of Carbon in Photosynthesis

Description: Biosynthesis begins with photosynthesis. Green plants and other photosynthetic organisms use the energy of absorbed visible light to make organic compounds from inorganic compounds. These organic compounds are the starting point for all other biosynthetic pathways. The products of photosynthesis provide not only the substrate material but also chemical energy for all subsequent biosynthesis. For example, nonphotosynthetic organisms making fats from sugars would first break down the sugars to sm… more
Date: October 1, 1960
Creator: Bassham, J. A. & Calvin, Melvin
Partner: UNT Libraries Government Documents Department
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Electrical Design Standards and Graphical Symbols

Description: This manual represents the recommendations of the Instrumentation and Controls Division committee on Electrical and Electronic Symbols and Drawing that have been issued to date, and supersedes the previously issued ORNL Electrical Symbols List and CF-58-12-141, Electrical and Electronic Drawing Standards for Wiring and Device Coding and Applications.
Date: October 1960
Creator: Bates, A.E.G; Bowelle, M.M.; Horton, J. L.; Moore, R. L.; Hyland, R. F. & Brashear, C.
Partner: UNT Libraries Government Documents Department
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Numerical results of production test IP-326-I, Low-flow calibration tests at B, D, F, and H Reactors

Description: Recent reviews of the last-ditch water backup system at the old reactors had shown that complete adequacy could not be demonstrated at all of the reactors under all conditions. However, these conclusions were based in part on conservative calculations using basic data with a sizeable amount of possible error. Subsequently, recommendations were made to run several tests which would increase the accuracy of the basic data and thereby allow an increase in the demonstratable level of last-ditch vat… more
Date: October 18, 1960
Creator: Benson, J. L.
Partner: UNT Libraries Government Documents Department
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Table of Electron Wave Functions at the Nuclear Surface

Description: The beta and gamma radiations of 21-hr I/sup 133/ were investigated by single-crystal and multicrystal scintillation spectrometers, and a scheme is proposed for the energy levels of Xe/sup 133/. The level scheme of Ge/sup 74/ was obtained by means of single-crystal and multicrystal beta- and gammaray spectrometry using sources of Ga/sup 74/ and As/sup 74/. The angular correlation for the 0.60-0.60-Mev cascade was measured. Both beta- and gamma-ray single- crystal measurements and gamma-beta and… more
Date: October 1, 1960
Creator: Bhalla, C. P. & Rose, M. E.
Partner: UNT Libraries Government Documents Department
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Nuclear Battery-Thermocouple Type Summary Report

Description: The potential usefulness of approximately 1300 radioactive isotopes as a heat source for the thermoelectric generator was investigated. Only 47 were found to have the proper characteristics of high specific activity and usable haif-life combined with an easily absorbable radiation. These isotopes are discussed showing possible sources of supply, the hazards involved, and the expected performance. Three large Po/sup 210/ heat sources were designed and constructed (for battery use), including one… more
Date: October 1, 1960
Creator: Blanke, B. C.; Birden, J. H.; Jordan, K. C. & Murphy, E. L.
Partner: UNT Libraries Government Documents Department
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Enriched fuel element column charge length optimization

Description: Results of the study on the best charge length of enriched fuel to be used in the reactors Indicate that with the present quality of fuel elements there is no economic incentive to change the charge lengths from those currently being used. The expected returns for operating D and C reactors at optimum conditions with different length enriched fuel charges are given in figures. Detailed results from calculations concerning the other reactors would also exhibit similar trends.
Date: October 24, 1960
Creator: Blyckert, W. A.
Partner: UNT Libraries Government Documents Department
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SLOP-1, a Thermal Multi-Group Program for the IBM-704

Description: SLOP-I, a thermal multi-group program written for the IBM-704, is discussed. It was used extensively to test the utility of various H/sub 2/O scattering kernels, and to assess the accuracy of other computing methods. The problems solved by the code, the physical approximations in the program and library, the method of solution, and suggested modes of operation are described. Derivaticns of all basic equations and complete input and running instructions are included. (M.C.G.)
Date: October 1960
Creator: Bohl, H.; Gelbard, E.; Buerger, P. & Culpepper, G.
Partner: UNT Libraries Government Documents Department
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METALLURGY DIVISION QUARTERLY PROGRESS REPORT FOR PERIOD ENDING OCTOBER 31, 1952

Description: Physieal Metallurgy. In the study of Th alloys, it has been found that the addition of Nb and V to Th produces a slight strengthening effect with the first small additions, but that large additions result in a lowering of strength with corresponding increases in ductility. The melting point of iodide Th was measured as being 1755 deg C. Studies of a series of Th--C alloys, with C content up to 0.13%, indicate that C does not affect the temperatures for the start and completion of recrystallizat… more
Date: October 31, 1960
Creator: Bridges, W.H. ed.
Partner: UNT Libraries Government Documents Department
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Purification of mercury contaminated lithium hydroxide

Description: The object of this investigation was to determine an economical method of preparing pure lithium hydroxide from a mercury-contaminated lithium hydroxide monohydrate salt presently produced as a waste product. Pure lithium hydroxide has application for chemical removal of carbon dioxide from air and general open market sale if the mercury contamination is reduced to approximately one part per billion. Because of the uncertainty of the form of the mercury contaminant, different purification metho… more
Date: October 18, 1960
Creator: Bronfin, B. R.; Jenkins, D. M. & Wright, E. E. Jr.
Partner: UNT Libraries Government Documents Department
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ALUMINA COATING OF UO$sup 2$ SHOT BY HYDROLYSIS OF ALUMINUM CHLORIDE VAPOR

Description: Uniform, dense coatings of alumina about 5 to 150 mu thick were applied to uranium dioxide particles 44 to 350 mu in diameter by hydrolysis of aluminum chloride vapor in a fluidized bed of the particles at 1830 deg F. The coated particles were resistant to nitric acid leaching, to oxidation in 1830 deg F air, and to thermal cycling from 6OO to 2500 deg F. After low neutron exposures, the coated particles showed excellent fission-gas retention at temperatures up to 2400 deg F in inert gas. Altho… more
Date: October 25, 1960
Creator: Browning, M. F.; Veigel, N. D.; Cook, T. E.; Diethorn, W. S. & Blocher, J. M., Jr.
Partner: UNT Libraries Government Documents Department
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An Improved Nuclear Density Gauge Progress Report: October 1959

Description: Progress is reported on development of a scintillation detector which alternately views the radiation transmitted through a sample and through a calibrated wedge. From this information density and thickness data can be obtained. Long term stability measurements are being made on the commutating system and the causes of fluctuations are being investigated. Information concerning procurement and fund expenditure are given. (J.R.D.)
Date: October 31, 1960
Creator: Burgwald, G. M.
Partner: UNT Libraries Government Documents Department
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An Improved Nuclear Density Gauge. Quarterly Report No. 2 Covering Period September 1 to December 1, 1959

Description: Techniques for improving stability of scintillation counter chopper systems and their development for use in industrial control applications are being investigated. Tests are being performed to determine the causes of fluctuations. An integration and frequency converter is being developed in which the anode current of the photomultiplier tube is alternately switched between two integrating condensers by action of a commutator switch. The voltages developed across the two condensers are proporti… more
Date: October 31, 1960
Creator: Burgwald, G. M.
Partner: UNT Libraries Government Documents Department
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MAGNETIC RECORDER FOR NUCLEAR PULSE APPLICATION. Covering Period: August 6, 1959 to October 5, 1959

Description: Direct recording of nuclear pulse height data on magnetic tape is being investigated. The characteristics of various brands of commercial tape are being investigated and a waveform analysis is being performed in an attempt to determine the most favorable frequency range for available tapes. Use of the magnetic modulator head is being investigated to minimize variations due to short term tape speed variations. (W.L.H.)
Date: October 31, 1960
Creator: Burgwald, G. M. & Stone, C. A.
Partner: UNT Libraries Government Documents Department
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AN IMPROVED NUCLEAR DENSITY GAUGE. Period covered: September 2 to October 1, 1959

Description: Progress in development of a nuclear density gage for use in thickness and density measurements is reported. A Ross filter system for energy discrimination in the alpha ray region was constructed. Soller slits for collimating the radiation entering and leaving the filters so that a constant absorber thickness is seen by the radiation beam is under construction. Comments by visiting Russian scientists on the density gage and a discussion of their work in this area are included. (J.R.D.)
Date: October 31, 1960
Creator: Burgwald, G.M.
Partner: UNT Libraries Government Documents Department
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Critique - NPR fuel

Description: The current status of the NPR fuel fabrication and testing program has been reviewed; suggestions have been made concerning areas requiring more information. This report is divided into a series of sections, each of which is a complete entity so a specific problem area can be considered apart from the entire NPR Fuel process. The final section incorporating conclusions and recommendations reaffirms the factors of major importance as well as evaluating those areas which are interrelated. Process… more
Date: October 14, 1960
Creator: Bush, B. H.
Partner: UNT Libraries Government Documents Department
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