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A Perturbation Method for Solving the Angle Dependent Nucleon-Meson Cascade Equations

Description: A method is described for obtaining an approximate solution to the equations describing a nucleon-meson cascade by using the angular dependence of the secondary particle production kernels as a perturbation. The usefulness of the method lies in the fact that in a slab geometry the equations that must be solved numerically are essentially the same as those that are used in the straight-ahead approximation and have been solved previously. (auth)
Date: July 30, 1963
Creator: Alsmiller, R. G., Jr. & Alsmiller, F. S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Multipurpose scintillation camera

Description: The scintillation camera is a nonscanning instrument for displaying the distribution of radioactive isotopes. It can be used, for example, to show abnormalities in the thyroid gland with I-131, the size, shape and location of kidneys with Hg-203 Neohydrin or to locate brain tumors either with Hg-203 Neohydrin or with the new positron emitting agent, Ga-68 EDTA. For many applications, the scintillation camera has higher sensitivity than conventional isotope scanners, and will produce pictures in… more
Date: July 1, 1963
Creator: Anger, H.O.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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TABLES OF OXYGEN PRESSURES CALCULATED FROM THE HYDROGEN-WATER SYSTEM AND FROM THE DISSOCIATION OF CUPRIC OXIDE

Description: The dissociation of various mixtures of hydrogen and water vapor and of cupric oxide was calculated over a wide range of temperatures (from 600 to 1700 deg C for the H/sub 2/--H/sub 2/O system, and from 200 to 1000 deg C for CuO). The resulting partial pressures of oxygen are presented in tabular form. (auth)
Date: July 1, 1963
Creator: Atlas, L. M. & Moser, J. B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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PROCESSING OF MULTI-CHANNEL-ANALYZER NUCLEAR REACTION SPECTRA WITH THE NEWDAC PROGRAM

Description: A FORTRAN program is presented for processing pulse-height data for particles emitted from a nuclear reaction. The program corrects the particle energy for any absorber preceding the detector and computes the differential center-of-mass cross section as a function of the reaction Q value and the excitation energy of the final nucleus. The energies can be computed either relativistically or nonrelativistically. The program is written as a series of subroutines to facilitate possible expansion of… more
Date: July 16, 1963
Creator: Ball, J.B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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A Survey of the Corrosion of Martensitic and Ferritic Stainless Steels in Pressurized Water

Description: >The corrosion resistance of mantensitic and ferritic austenitic stainless steels and carbon steels in pressurized water at 500 to 600 deg F is compared. Included are specific out-of-pile data for austenitic stainless steels, AISI types types 410, 420, 431, and 440C; the ferritic AISI types 430, 442, and 446; the precipitation-hardening type 17-4PH; and carbon steels, ASTM 212 A and B. Available corrosion results obtained under irradiation at exposures in the range of 7 x 10/sup 16/ to 3 x 10/s… more
Date: July 16, 1963
Creator: Beaver, R. J. & Leitten, C. F. Jr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Engineering Features of DCX-2

Description: The DCX-2 is a large, complex experimental apparatus. Its aim is the generation of a hot, dense plasma by the injection and dissociation of 600-kev hydrogen molecNoneular ions in a magnetic-mirror field. For facilitating this process, the molecular ions are given a long path in the machine, and the ion- pumping action of the plasma is used to maintain the vacuum. The major component systems of the apparatus are the ion source and accelerator, highvoltage power supply, magnet system, beam-inject… more
Date: July 26, 1963
Creator: Bell, P. R.; Culver, J. S.; DeCamp, S. M.; Ezell, J. C.; Kelley, G. G.; Lazar, N. H. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A Review of Ultrasonic Imaging Methods, With a Selected, Annotated Bibliography

Description: This review includes a discussion of many methods for detecting ultrasonic images with emphasis upon the problems involved in a nondestructive inspection system employing ultrasonic imaging techniques. The detection methods are compared from the standpoint of threshold sensitivity. It is concluded that a system which will respond to an ultrasonic intensity of 10/sup -3/ w/cm/sup 2/ or less will probably be necessary for a practical nondestructive inspection system. The detection methods which m… more
Date: July 1, 1963
Creator: Berger, H. & Dickens, R.E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Radiobiological Basis for the Whole Body Radiation Syndrome

Description: Data are presented that show a marked species difference in the degree of damage and in the course of events seen in the bone marrow and peripheral blood after a given dose of radiation. The data taken together indicate strongly, but do not prove, that the picture seen results primarily from damage to the stem cell population. This damage to the stem cells is manifested later in the more mature differentiating cells of the marrow, and in the peripheral blood. The picture seen results both from … more
Date: July 19, 1963
Creator: Bond, V.P. & Fliedner, T.M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Pathfinder Atomic Power Plant. End Closure Development for Low Enrichment Superheater Fuel Rods

Description: Research on a welding process for closing the ends of pathfinder fuel elements is reported. Optimum parameters for certain variables (amperage, weld travel, preheat, etc.) affecting weld quality were determined, and two modified end cap designs were investigated and found to reduce weld sensitivity to certain variables. Use of chills on the fuel tube greatly improved weld puddie geometry and microstructure. Optimum weld parameters for rods containing UO/sub 2/ fuel were experimentally establish… more
Date: July 30, 1963
Creator: Boschke, R. A. & Wiggins, R. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Analog Computer B-5 Tests

Description: This report is an explanation of the response characteristics, some typical curves of displacements, velocities, etc., and the computer circuit diagram.
Date: July 11, 1963
Creator: Burack, R. D. & Maguire, A. F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Single Particle Excitation Theory Of The Photonuclear Giant Resonance

Description: Calculations of the photonuclear giant resonance according to the Wilkinson model are presented in this report. In this model the giant resonance in the cross section for absorption of gamma rays by nuclei is ascribed to the excitation of large numbers of nucleons in closed shells. The model generally predicts correctly the integrated cross section for the giant resonance, bu the resonance energy is too low. Results are presented in a series of tables and formulas so that the integrated cross s… more
Date: July 30, 1963
Creator: Buskirk, F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Statistical Treatment of Hot Channel Factors for Compact Reactors

Description: The theoretical development, statistical treatment, and application of hot channel factors in compact SNAP reactors as represented by the SNAP 8 experimental core loading are presented. The channel and rod power effects of variation in the concentrations of uranium, hydrogen, and poison in the fuel rods are given. The statistical distributions of all variables are examined. A random selection of rods and channels is compared to the actual SNAP 8 configuration, with no difference noted. Confiden… more
Date: July 15, 1963
Creator: Cohn, P. D. & Evans, H. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Materials for Superheated Fuel Sheaths: Relative Performance of Alloys in Superheated Steam Environments

Description: From abstract: "Study of radiation effects upon the tensile properties of the alloys, corrosion behavior in the absence and presence of stress, effect of prolonged, high temperature exposures upon structure sensitive properties of the alloys, and physical metallurgical changes as a function of exposure in a superheat environment.
Date: July 1963
Creator: Comprelli, F. A.; MacMillan, D. F. & Spalaris, C. N.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Calculations on close-coupled processing for Pu-238 recovery

Description: Irradiation of Np-237 in Hanford reactors and recovery of the Pu-238 product in a close-coupled separations plant is currently of interest. Such a concept has the potential of increasing in Pu-238 production rates. The results of initial calculations on the subject are presented herein to aid further study and evaluation. Much of the information is presented in terms of the aqueous target system proposed in earlier work (i.e., irradiation and processing of an aqueous neptunium solution). Howeve… more
Date: July 10, 1963
Creator: Coppinger, E. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A STUDY OF THE POLYMERIZATION, DEPOLYMERIZATION, AND PRECIPITATION OF TETRAVALENT PLUTONIUM AS FUNCTIONS OF TEMPERATURE AND ACIDITY BY SPECTROPHOTOMETRIC METHODS: PRELIMINARY REPORT

Description: Studies were made on the kinetics of the polymerization of tetravalent Pu, depolymerization of polymeric Pu(IV), and properties of Pu(IV) poiymer under representative solution conditions of acidity, temperature, and ion concentrations encountered in fuel processing. The polymerization of tetravalent Pu was studied as a function of the Pu concentration, (1 to 8 mg Pu/ml), nitric acid concentration, (0.03 to 0.3 M), and temperature (25 to 95 deg ). Under these conditions, disproportionation and n… more
Date: July 1, 1963
Creator: Costanzo, D A & Biggers, R E
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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NUCLEAR START-UP OF THE SPERT IV REACTOR

Description: The Spert IV facility, the initial critical experiment, the initial core, the operational core loading, and core parameter measurements (void and temperature coefficients, control rod worth, neutron flux distributions, etc.) made before initiation of the kinetics testing program are described. (auth)
Date: July 1, 1963
Creator: Crocker, J. G.; Koch, J. E.; Martinson, Z. R.; McGlinsky, A. M. & Stephan, L. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Water Spectra and Energy Exchange Kernels

Description: Many measurement of neutron spectra have been made in water assemblies. In these system a large part of the spectrum is given by an essentially Maxwellian distribution at the moderator temperature which is insensitive to the scattering model. Hence, the test of the energy exchange scattering kernel is in the difference of the spectrum and the fundamental or Maxwellian component. The figure shows the spectrum for the Nelkin model. Once the fundamental has been subtracted neither theoretical mode… more
Date: July 11, 1963
Creator: Daitch, Paul B. (Paul Bernard), 1925- & Ohanian, M. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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