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Theory of Asymmetric Arrays of Control Rods in Nuclear Reactors
Introduction: Seldom does the actual arrangement of control elements in a nuclear reactor confers to the ideal and convenient mathematical array. In order to achieve shim control. safety and regulation, it is desirable to design with rods of different sizes and materials. With given fuel element arrangement, typically in square or hexagonal lattice spacing, there will be rods located at different distances form the center of the core and from each other. As the reactor operates, absorbers will be withdrawn, leaving further asymmetries in the location of those remaining. It is the purpose of this report to develop in detail a two-group diffusion theory with as complete generality as possible. The method is as yet restricted to the unreflected core, or to the reflected core by use of reflector savings and bare equivalent geometries.
Date:
April 25, 1959
Creator:
Murray, Raymond L.
System:
The UNT Digital Library
Homogeneous Reactor Project Quarterly Progress Report: November 1958-January 1959
Report documenting the ongoing research and developments of the Oak Ridge National Laboratory's Homogeneous Reactor Project.
Date:
April 16, 1959
Creator:
Oak Ridge National Laboratory
System:
The UNT Digital Library
Behavior of Technetium in the Purex Process
Technical report. From Abstract : "Predictions of the behavior of technetium in the Purex process and details of the chemistry of technetium for Purex process conditions are given."
Date:
April 1959
Creator:
Siddall, Thomas H., III
System:
The UNT Digital Library
Liquid Metal Fuel Reactor Experiment: Quarterly Technical Report, April-June, 1959
Liquid Metal Fuel Reactor Experiment program quarterly technical report.
Date:
1959-04/1959-06
Creator:
unknown
System:
The UNT Digital Library
Production of Single Crystal Copper Films at Low Temperatures
A method is described for the production of single‐crystal films of copper at temperatures as low as −40°C. This method utilizes the epitaxy of copper on rock salt. A thin layer of copper is evaporated on a single crystal of salt at 350°C. Then a thick layer is evaporated at the low temperature. Films grown by this method have been examined using x‐ray and etching techniques. It was found that some of these films had single‐crystal regions of 1 mm diameter and larger. These crystallites had [100] directions within 1° to a normal to the film surface.
Date:
April 1959
Creator:
Yelon, Arthur
System:
The UNT Digital Library
Uranium Exploration and Development in Argentina
Report discussing initial ventures in a joint project between the United States Atomic Energy Commission and the Comision Nacional de la Energía Atomica of Argentina (CNEA) to examine existing uranium deposits in Argentina and determine the best course for new prospecting programs. This document outlines the findings for specific locations visited in Argentina and their relative importance.
Date:
April 1959
Creator:
Stocking, Hobart E.; Wood, H. B. & Keyes, W. W.
System:
The UNT Digital Library
Review of the Corrosion Product Radioactivity Program at the Army Package Power Reactor : Alco R & D report
Abstract: An analysis and a summary are.given of the radioactivity buildup program at the Army Package Power Reactor during the last nine months. · Due to the wide fluctuation of water and crud results, only general interpretations can be made with this data. Metal test coupon data indicate a substantially greater buildup on Croloy 16-1 metal than on Type 304 stainless steel. Coupled with the decreased ability to remove the radioactivity buildup on Croloy 16-1 by conventional descaling techniques, the implication is that this metal might pose a serious problem for use as steam generator material. It was emphasized, however, that results to date ae only preliminary and extensive additional experimentation would be required to reach more definite conclusions.
Date:
April 25, 1958
Creator:
Medin, A. L.
System:
The UNT Digital Library
Engineering Study on Underground Construction of Nuclear Power Reactors
Engineering study on underground construction of nuclear power reactors.
Date:
April 15, 1958
Creator:
Beck, Christian
System:
The UNT Digital Library
Strontium Program: Summary Report for April 1958
Technical report was prepared by the Health and Safety Laboratory (HASL) with the objective of presenting a current picture of the Strontium Program. Abstract: Strontium 90 levels in fallout, milk, canned fish and tap water are summarized for data available up to April 5, 1958. Original data submitted during the month of March are included as an appendix. Data are presented to show the amount of Strontium 90 in fallout at sampling stations within and outside the United States.
Date:
April 15, 1958
Creator:
Hardy, Edward P., Jr.
System:
The UNT Digital Library
Airborne Reconnaissance Project, Ruby Range and Sweetwater Basin, Montana
Abstract: A low-level airborne radioactivity survey of parts of Beaverhead and Madison Counties in southwestern Montana was undertaken from June 6 to October 14, 1955. Flying centered around the Ruby Range-Sweetwater Basin area and concentrated on the Precambrian metamorphic complex and Tertiary lake-bed sediments. No commercial uranium deposits were discovered, and no extensions were found of the few known small occurrences. Five areas of high background detected through the survey were investigated on the ground.
Date:
April 1958
Creator:
Pruitt, Robert G., Jr. & Magleby, Dan N.
System:
The UNT Digital Library
Feasibility Study, 44,000 KW Prototype Partially Enriched Uranium, Gas Cooled, Graphite Moderated Nuclear Power Plant (Prototype for an Optium Power Plant) for United States Atomic Energy Commission, Idaho Operations Office
Report that "contains a discussion of the feasibility study and cost estimates for a gas cooled, partial enriched uranium, graphite moderated power plant" (p. 3).
Date:
April 1, 1958
Creator:
Kaiser Engineers
System:
The UNT Digital Library
Feasibility Study, Optimum Natural Uranium, Gas Cooled, Graphite Moderated Nuclear Power Plant for United States Atomic Energy Commission, Idaho Operations Office
Report containing "a discussion of the feasibility design and cost estimates for a gas cooled, natural uranium, graphite moderated power plant optimized for minimum power cost" (p. 3).
Date:
April 1, 1958
Creator:
ACF Industries Incorporated. Nuclear Products - ERCO Division.
System:
The UNT Digital Library
Feasibility Study, Optimum Partially Enriched Uranium, Gas Cooled, Graphite Moderated for United States Atomic Energy Commission, Idaho Operations Office
Report that contains "a preliminary design and feasibility studies of gas cooled, graphite moderated, nuclear power plants" (p. 1).
Date:
April 1, 1958
Creator:
ACF Industries Incorporated. Nuclear Products - ERCO Division.
System:
The UNT Digital Library
Liquid Metal Fuel Reactor Experiment, Quarterly Technical Report: April 1958 - June 1958
Quarterly technical report discussing progress and activities of the Liquid Metal Fuel Reactor Experiment.
Date:
April 1958
Creator:
Babcock & Wilcox Company
System:
The UNT Digital Library
Nuclear Merchant Ship Reactor: Design of the MMSR Primary Shield
The purpose of this report is to describe the shielding calculations and techniques used in sizing the MMSR primary shield, the results obtained, and the resulting shield thicknesses. The present report covers many of the items scheduled for presentation in the final MMSR shield design report to be issued in November of 1958. The primary shield in the MMSR consists of the reflector, thermal shields, pressure vessel wall, a 33" water annulus and a layer of lead shielding at the exterior of the primary shield tank vary from 3" to 1" in thickness.
Date:
April 1958
Creator:
Smith, W. R. & Turner, M. A.
System:
The UNT Digital Library
Preliminary Design 55,000 KW Prototype Natural Uranium, Gas Cooled, Graphite Moderated Nuclear Power Plant (Prototype for an Optimum Plant) for United States Atomic Energy Commission, Idaho Operations Office
Report describing the preliminary design of a 55,000 kW prototype of a natural uranium nuclear power plant for the United States Atomic Energy Commission. Testing of the design and potential requirements for operating the plant are included.
Date:
April 1, 1958
Creator:
Kaiser Engineers
System:
The UNT Digital Library
Reactor Technology Quarterly Report
Introduction: The experimental work reported here was undertaken as a part of the over-all design and development program for a nuclear reactor pressure vessel.
Date:
April 1958
Creator:
unknown
System:
The UNT Digital Library
Study of Aluminum Alloys Containing Up to 45 W/O Uranium
Report discussing a study on casting techniques for the production of sound homogeneous extrusion blanks composed of aluminum-uranium alloys with 30 to 45 w/o uranium.
Date:
April 30, 1957
Creator:
Daniel, Norman E.; Foster, Ellis L.; DeMastry, John A.; Bauer, Arthur A. & Dickerson, Ronald F.
System:
The UNT Digital Library
Reconnaissance of uranium deposits in the Capitol Reef area, Wayne and Garfield Counties, Utah
A report discussing a geologic reconnaissance of the Capitol Reef area, undertaken to evaluate the uranium deposits and determine their geologic characteristics.
Date:
April 22, 1957
Creator:
Baumgardner, L. H. & Warner, D. H.
System:
The UNT Digital Library
Report on the Texas Company radioactivity survey and evaluation by AEC test drilling in the Blanding area, July-October 1951
A memorandum report on test drilling of areas of anomalous radioactivity.
Date:
April 19, 1957
Creator:
Melancon, Paul E.; Dressner, Elliott F. & Bailey, Judith H.
System:
The UNT Digital Library
Injection Trajectories and Beam Matching for the Cambridge Electron Accelerator
"ABS>Injection trajectories were calculated for different injection conditions for the Cambridge Electron Accelerator, considering also the effect of magnetic fringing fields. The general problem of matching the emittance of the linac to the acceptance of the synchrotron in the transversal phase space is considered, and it is shown that this can be done by a set of two quadrupole lenses. In order to eliminate rudial betatron oscillations due to energy deviations of the injected particles, a pulsed electric quadrupole lens in the synchrotron in combination with two deflectors between linac and synchrotron can be used to place particles of different energies on their specific equilibrium orbits. A layout of the whole injection system following the output of the linac is given."
Date:
April 17, 1957
Creator:
Steffen, Klaus G.
System:
The UNT Digital Library
Preliminary Investigations for an Advanced Engineering Test Reactor: Addendum
More detailed study of an advanced engineering test reactor.
Date:
April 16, 1957
Creator:
Leyse, C. F. & Leonard, B. H., Jr.
System:
The UNT Digital Library
Investigation of the Calyx No. 3 Mine, Temple Mountain Area, San Rafael Swell, Emery County, Utah
The following report studies uranium and vanadium ore deposits found in the Calyx No. 3 mine in the Temple Mountain area of the San Rafael Swell in Utah.
Date:
April 10, 1957
Creator:
Baumgardner, L. & Noble, E. A.
System:
The UNT Digital Library
Feasibility Investigation of a Closed Cycle Boiling Water Reactor for the Propulsion of a Merchant Ship
Summary: The scope and intent of this report is to demonstrate the feasibility of a nuclear powered tanker for service in the United States Maritime Fleet.
Date:
April 8, 1957
Creator:
unknown
System:
The UNT Digital Library