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Atomic Energy Commission Reports
159
Hanford Works Reports
70
University of California Radiation Laboratory Reports
60
HW (Series)
51
Oak Ridge National Laboratory Reports
34
BMI (Series)
25
Battelle Memorial Institute Reports
25
General Electric Company Atomic Power Reports
25
GEAP (Series)
24
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1. K+ Charge Exchange - Search For K+ Charge Exchange
An experiment was designed utilizing a charge-exchange reaction to study the decay and interactions of the neutral K mesons produced. The experiment produced no events that could be interpreted as either the decay or interaction of neutral K mesons. The nature of the experiment and the possible explanations of this unexpected result are presented in this paper.
Date:
July 29, 1959
Creator:
Birge, Robert W.; Courant, Hans J.; Lanou, Robert E., Jr. & Whitehead, Marian N.
Object Type:
Report
System:
The UNT Digital Library
9-Zoom : A One-Dimensional, Multigroup, Neutron Diffusion Theory Reactor Code for the IBM 709 [Supplement]
The following document describes the usage of the LRL 9-ZOOM code, a neutron diffusion theory reactor code for the IBM 709. The code has been modified to solve configuration of a series of stacked cylindrical disks, designating a new geometry case.
Date:
July 12, 1960
Creator:
Stone, S. P.
Object Type:
Report
System:
The UNT Digital Library
Abstract for the Glasgow Meeting - "International Conference on Nuclear Physics": Gamma Transitions and the Shell Model
The study of the interaction of the electromagnetic field with nuclei has proved very fruitful for the elucidation of many details of nuclear structure. The γ-ray transitions observed in either absorption or emission can be divided into three classes, depending on whether the matrix elements of the transition are (1) much larger, (2) approximately equal or (3) much smaller than those expected for single proton transitions which are usually taken as a norm. In class (1) we find (a) the broad transitions leading to the "giant resonances" in the nuclear photo-electric effect, and (b) the "fast" transitions between low lying states, especially for even-even nuclei far removed from magic numbers. The large matrix elements and the regular dependence of their magnitude on the atomic weight speak for cooperative phenomena in which many nucleons or the nuclei as a whole are involved. In class (2) we find the much studied M4 transitions which give strong support for the single particle model; they have rather uniform matrix elements. Some finer points remain to be understood, especially why some odd nuclei do not show the expected ratio for |M|^2 of ~ 2:1. The transitions belonging to class (3) require further selection rules and …
Date:
July 1954
Creator:
Goldhaber, M.
Object Type:
Report
System:
The UNT Digital Library
Accident in Continuous-Dissolver Pilot Plant of Fluoride Volatility Project on May 15, 1957
The so-called Fluoride Volatility Processes refer to several proposed non-aqueous methods of processing irradiated fuel elements. In each of these methods, the uranium is fluorinated to UF6 and then decontaminated by distillation. One of those methods, involving the direct fluorination of the uranium by bromine trifluoride (BTF), has been under investigation at BNL since 1950. In 1952, it was demonstrated at BNL that uranium, as UF6, could be satisfactorily decontaminated by distillation in small-scale pilot plant equipment; end in 1953, BNL undertook the job of determining the technical feasibility of a continuous dissolver on a pilot-plant scale. The reason for the project was that the economic superiority of the process seemed to depend upon its amenability to continuous operation.
Date:
July 10, 1957
Creator:
Strickland, Gerald; Horn, F. L.; Johnson, Richard & Dwyer, O. E.
Object Type:
Report
System:
The UNT Digital Library
Accumulation of Radioactivity in Columbia River Fish in the Vicinity of the Hanford Works
Abstract: The data obtained from the radioassay of fish collected in vicinity of the Hanford Works between April, 1948 and June, 1950 are presented. Most of the radioactivity in the fish resulted from the concentration of p32 in the scales, bone, and certain visceral organs. The level of activity density in the fish was influenced by size, feeding habits and metabolic rate in addition to the activity density of the water. Changes in operation of nuclear reactors have resulted in progressive increases in activity densities of fish from one year to the next. The levels of radioactivity are not sufficiently high to be hazardous to either the fish or persons eating them.
Date:
July 1, 1952
Creator:
Olson, P. A., Jr. & Foster, Richard F.
Object Type:
Report
System:
The UNT Digital Library
Accurate Nuclear Fuel Burnup Analyses; Second Quarterly Progress Report, (March - May 1962)
The objective of the Accurate Nuclear Fuel Burnup Analyses program is to develop more accurate methods for burnup analysis for general use than the current method of analysis of Ca-137 or Sr-90. The program will require from three to five years of effort.
Date:
July 1, 1962
Creator:
Rider, B. F.
Object Type:
Report
System:
The UNT Digital Library
Acute Radiotoxicity of Injected Yttrium91
Report describing results of experiments that involved injecting radioactive yttrium into animals: "The excretion, retention, and distribution of the yttrium was measured, and its effect on survival and growth was observed. The average total excretion of Y91 to the time of death (from 76 hours to 24 days) was a little less than 30 per cent of the injected dose" (p. 2).
Date:
July 31, 1947
Creator:
Anthony, David S.
Object Type:
Report
System:
The UNT Digital Library
Additional Extraction and Ion Exchange Studies of Temple Mountain District Ores
Uranium extraction of 95% has been obtained from samples of Temple Mountain ore by a cyclic test procedure in which the new feed was not roasted. This procedure involved acid leaching the ore, flotation and roasting of the carbonaceous material, and acid leaching the roaster calcine.
Date:
July 30, 1954
Creator:
Jones, J. Q. & Viklund, H. I.
Object Type:
Report
System:
The UNT Digital Library
Adsorption of Zirconium-Niobium on Silica Gel
From abstract: "Adsorption of radioactive zirconium-niobium from uranyl nitrate solutions by silica gel was increased by increasing the temperature and time the solution contacts silica gel, and decreased by "aging" the solutions before contacting the silica gel."
Date:
July 1957
Creator:
Karraker, David G. & Parker, Sidney G.
Object Type:
Report
System:
The UNT Digital Library
Advanced Seminar in Reactor Physics
The following report provides equations that result from a seminar in reactor physics.
Date:
July 26, 1950
Creator:
Smith, Nicholas M.
Object Type:
Report
System:
The UNT Digital Library
Aircraft Nuclear Propulsion Project Quarterly Progress Report For Period Ending June 10, 1955
The development of the reactor layout is continuing. New features that have been incorporated because of stress, fluid flow, or fabricability considerations include an elliptical fuel expansion tank, a rounded dome to enclose the top of the reactor, a newly designed sodium pump impeller, and other related items. Recently completed heat exchanger tests yielded consistent data from which a series of heat exchangers is being designed. The most promising of these will be chosen for the ART.
Date:
July 28, 1955
Creator:
Jordan, W. H.; Cromer, S. J.; Strough, R. I.; Miller, A. J. & Savolainen, A. W.
Object Type:
Report
System:
The UNT Digital Library
The Alco Products Inc. Criticality Facility : Description and Operation
The Alco Products Criticality Facility, site location, and operating procedures are described in detail, including the handling of fissionable material and the operating procedures for the safe performance of critical experiments.
Date:
July 16, 1958
Creator:
Noaks, John W.
Object Type:
Report
System:
The UNT Digital Library
Alpha-Decay Studies in the Heavy Element Region
Thesis describing a research conducted to extend observations on nuclear energy levels and how they effect the nucleus itself, and an investigation on the gamma rays associated for the even-even isotopes and to obtain additional data for the oddmass neclei in the hope that more regularities will become apparent for that class of nuclides.
Date:
July 3, 1956
Creator:
Hummel, John Philip
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
An Alternate Interpretation of the Results on then p-Meson Decay Electron Spectrum
We have preliminarily reported the interpretation of our experimental results that the intensity of the spectrum at the maximum energy was zero. But, as reported in the second paper UCRL-1261 we found that the results may also be fitted to a different spectrum with finite intensity at the maximum energy. Quite recently, however, the most probable value for the mass of the p-meson has been revised by two independent groups based on two different experiments.
Date:
July 1953
Creator:
Sagane, Ryokiche, 1905-1969
Object Type:
Report
System:
The UNT Digital Library
Analysis of Broadened X-ray Diffraction Peaks
This report is a manual describing the methods developed by Stokes (1) and Warren and Averbach (2) (3) for the determination of the effects of cold work by x-ray diffraction methods. Only the method of mathematical analysis is presented while the method of obtaining the necessary x-ray diffraction patterns is not mentioned. This manual will be used for an experimental study of irradiation damage to uranium.
Date:
July 27, 1955
Creator:
Merckx, K. R.
Object Type:
Report
System:
The UNT Digital Library
Analysis of Bulk Shielding Facility Neutron Dosimeter Data
Technical report calculating "effective removal cross sections" for Pb, Fe and O from measurements of fast neutron does in the water surrounding the BSF reactor. The values for Pb and Fe agree quite well with those previously determined from Lid tank data, whereas that for O is somewhat lower. [From Abstract]
Date:
July 17, 1952
Creator:
Podgor, S.
Object Type:
Report
System:
The UNT Digital Library
Analytical Chemistry Division Semiannual Progress Report for Period Ending April 20, 1954
Progress report of the Oak Ridge National Laboratory Analytical Chemistry Division providing updates on various projects, experiments, and other work in ionic analyses, analytical instrumentation, radiochemical analyses, activation analyses, spectrochemical analyses, inorganic preparations, optical and electron microscopy.
Date:
July 5, 1956
Creator:
Kelley, M. T.; Susano, C. D. & Raaen, H. P.
Object Type:
Report
System:
The UNT Digital Library
Analytical procedures for the plutonium Metal Fabrication Process
Report describing the results of the cupferron extraction-copper spark method in determining the impurity elements in plutonium metal. This was required the 234-5 Project analytical program.
Date:
July 25, 1952
Creator:
Bierlein, T. K.; Kendall, L. F. & Van Tuyl, H. H.
Object Type:
Report
System:
The UNT Digital Library
Analytical Procedures for the Plutonium Metal Fabrication Process
Report describing methods of determining trace impurities in plutonium in connection with the Metal Fabrication Process. The methods included are the cupferron extraction-copper spark method and the direct copper spark method.
Date:
July 25, 1952
Creator:
Bierlein, T. K.; Kendall, L. F. & Van Tuyl, H. H.
Object Type:
Report
System:
The UNT Digital Library
An Approximate Crystal Structure for the Beta Phase of Uranium
The following document describes x-ray diffraction measurements for an approximate crystal structure for the beta phase of metallic uranium.
Date:
July 7, 1950
Creator:
Tucker, Charles W., Jr.
Object Type:
Report
System:
The UNT Digital Library
An Aqua Recia Flowsheet for Uranium Dissolution
Relatively long time cycles are required for the standard nitric acid dissolution of enriched uranium using safe batch size techniques for criticality control. Upwards of forty eight hours are required for the total dissolution of solid of I and E enriched slugs in nitric acid. The dissolution capacity may be increased by: (1) using a dissolver critically safe by virtue of its geometry or, (2)increasing the rate of uranium dissolution. Dilute agua regia -- a mixture of hydrochloric and nitric acids -- is known to dissolve uranium much more rapidly than nitric acid. This reports present a flowsheet for the rapid dissolution of uranium slugs in dilute agua regia.
Date:
July 21, 1959
Creator:
Shefcik, J. J.
Object Type:
Report
System:
The UNT Digital Library
Artificial Radioactive Isotopes of Cerium and Lanthanum
The following document describes some studies of the radioactive isotopes of cerium and lanthanum lying on the light or neutron-deficient side of stability.
Date:
July 20, 1948
Creator:
Chubbuck, James B.
Object Type:
Report
System:
The UNT Digital Library
Atmospheric Contamination Associated with Inert-Gas-Shielded, Consumable Electrode Welding
Apparent excessive concentrations of atmospheric contamination which were reported to be associated with an inert-gas-shielded consumable electrode arc wielding operation were studied to evaluate the potential health hazards. A study was made of the concentrations of metal fume and gaseous products of the operation as well as the spectrum of ultraviolet radiation. Recommendations for necessary controls were made.
Date:
July 25, 1955
Creator:
Adley, F. E. & Gill, W. E.
Object Type:
Report
System:
The UNT Digital Library
Atom Arrangements in Some Iron-Aluminum Solutions, Report No. 1
"Short-range order coefficients were measured at 300 and 400°C for iron-aluminum alloys containing 14.8, 18.2, and 20.0 atomic per cent aluminum. These alloys exhibited a strong preference for unlike near neighbors. The short-range order was greater at the lower temperature and increased as the Fe 3Al composition was approached."
Date:
July 12, 1962
Creator:
Houska, C. R. & Averbach, B. L.
Object Type:
Report
System:
The UNT Digital Library