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Production of Fuel Assemblies for the Materials Testing Reactor Mock-Up Critical Experiments
Technical report outlining the fabrication of twenty-five fuel assemblies and three shim-safety rod fuel sections for use in the Materials Resting Reactor Mock-Up Critical Experiments. Results show that two of the assemblies exceeded tolerance in a few of the key dimensions, but were considered acceptable and as a consequence, production was carried out with no rejects. [From Abstract]
Date:
April 9, 1951
Creator:
Smith, C. D.; Drosten, F. W. & Kerze, F., Jr.
Object Type:
Report
System:
The UNT Digital Library
The Shielding of Mobile Reactors - [Part] 2
From abstract: "The methods of applying results of bulk-shielding measurements to the design of reactor shields is outlined. Geometrical transformations for the more common shapes are derived, as are approximate means of calculating leakage of radiation. As an illustration of the methods, the ORNL Lid Tanks and Bulk Shielding Facility data are transformed to a standard geometry and compared. Two direct calculations of water attenuation, using cross sections described in the previous article, are finally compared with the experimental data."
Date:
June 30, 1952
Creator:
Blizard, E. P. & Welton, T. A.
Object Type:
Report
System:
The UNT Digital Library
Aircraft Nuclear Propulsion Project Quarterly Progress Report: Period Ending December 10, 1951
This quarterly progress report details the ongoing research and experiments at the Oak Ridge National Laboratory as part of the Aircraft Nuclear Propulsion Project. The first part of this report discusses reactor theory and design. The second part of this report is not included. The third part of this report discusses materials research. The fourth part of this report includes appendixes
Date:
March 6, 1952
Creator:
Briant, R. C. & Cottrell, W. B.
Object Type:
Report
System:
The UNT Digital Library
The Oak Ridge National Laboratory Research Reactor Safeguard Report
The proposed ORNL Research Reactor is designed to serve as a general purpose research tool delivering a maximum thermal flux of 8x10^13 n/cm2-sec at the initial power level of five megawatts. Operation at power levels up to ten megawatts is proposed for such items as sufficient cooling capacity is available to handle the increased heat load. The reactor will use MTR-type fuel elements and beryllium reflector pieces in a 7 x 9 grid with moderation and cooling provided by forced circulation of demineralized water. The reactor tanks are submerged in a barytes concrete pool, filled with water, which serves as a biological shield. Experimental facilities include two 18" diameter "Engineering Test Facilities" and six 6" diameter beam holes. In addition, access to the core is available through the water of the pool. The result on the surrounding population of release to the atmosphere of a large fraction of the radioactive material in the core has been computed by two methods. It is shown that under certain conditions off-area personnel could be subjected to greater than the maximum permissible exposure. An analysis of the maximum hazard caused by the release of the entire contents of the core to the local watershed …
Date:
October 7, 1954
Creator:
Binford, F. T.; Cole, T. E. & Gill, J. P.
Object Type:
Report
System:
The UNT Digital Library
Electronuclear Research Division Semiannual Progress Report
Nuclear physics research with 22-Mev protons in the 86-in. cyclotron included angular-distribution measurements of neutrons from (p,n) reactions in nine target elements; measurement of the angular distribution of fission fragments from proton-induced fission of U233, U225, U228, Th230, and Th232; measurement of alpha-particle angular distributions from (p,α) reactions a study of the neutron-deficient isotopes of terbium and completion of an extensive program of the measurement of activation cross sections. Two more targets for cyclotron production of isotopes were developed, and the production yields for 14 radioisotopes are summarized. A new record for continuous beam power on a production target, 36 kw for 5 hr, was achieved. The design of a beam-deflector system for the 86-in. cyclotron has been completed, and several of the components have been fabricated ; a shutdown for installation is scheduled for October 8. The deflected N+++ beam of the 63-in. cyclotron was used in a study of the gain and loss of electrons by nitrogen lens passing through thin foils, and the equilibrium charge distribution of lens as a function of energy was thus obtained. The excitation functions were measured for nitrogen-induced reactions on both nitrogen and oxygen. Assembly restrictions of the prepared 114-in. heavy-particle cyclotron …
Date:
November 18, 1954
Creator:
Livingston, R. S. & Howard, F. T.
Object Type:
Report
System:
The UNT Digital Library
The Effect of Acidity and Reducing Agents on Ruthenium Solvent Extraction by Tributyl Phosphate in the 25 Process
Results of tracer studies suggest that, in tributyl phosphate extraction processes designed to recover and purify fissionable material, minimum ruthenium extraction should be obtained from feeds at least 2 M in nitric acid or at least 1 M acid-deficient. Ruthenium decontamination was decreased by preheating the feed and increased by pretreatment with reducing agents. A pretreatment using 0.06 M ferrous ion and 0.5 M urea with 1 hr simmering at 85°C should increase ruthenium decontamination about 10-fold in the 25 process. If other process considerations dictate the use of a low-acid feed, decontamination from ruthenium may be improved by using 3 M nitric acid as the scrubbing solution. Apparently, the scrubbing process is quite time-dependent; a solvent holdup time of about 15 min may be needed in the scrub section for maximum decontamination.
Date:
December 15, 1954
Creator:
Flanary, J. R. & Frashier, L. D.
Object Type:
Report
System:
The UNT Digital Library
Products Produced in Continuous Neuron Irradiation of Thorium
Calculated data and graphs describing the effects of continuous thermal-neutron irradiation of thorium, the usual method of operations of homogeneous reactors, are presented.The buildup and decay of U^233, Pa^233, other heavy isotopes, and fission products are considered on the basis of best available cross-section and fission-yield data. The effects of the heavy isotopes and fission products on neutron economy are discussed.
Date:
February 16, 1956
Creator:
Gresky, A. T. & Arnold, E. D.
Object Type:
Report
System:
The UNT Digital Library
Metallurgy Division Quarterly Progress Report for Period Ending January 31, 1951
Technical report covering the metallurgy of thorium and on fabrication techniques. Report investigates the stability and corrosion resistance of thorium exposed to eutectic NaK, extrusion as a means of fabrication of thorium tubes or rods, and corrosion of large single metal crystals by liquid metals. [From Summary]
Date:
June 7, 1951
Creator:
Miller, E. C. & Bridges, W. H.
Object Type:
Report
System:
The UNT Digital Library
Metallurgy Division Quarterly Progress Report for Period Ending January 31, 1952
This quarterly progress report describes the ongoing research at the Metallurgy Division at the Oak Ridge National Laboratory. In particular, this report discusses the thorium research program, the slug problem, the preferred orientation and anisotropy in metals, fundamental studies of alloying, and the ANP program.
Date:
August 28, 1952
Creator:
Frye, John H., Jr., 1908-2001 & Bridges, W. H.
Object Type:
Report
System:
The UNT Digital Library
Metallurgy Division Quarterly Progress Report for Period Ending April 30, 1952
This quarterly progress report discusses ongoing work at the Metallurgy Division at the Oak Ridge National Laboratory. Topics discussed include thorium research, the preferred orientation of uranium, studies in the ceramics laboratory, the homogenous reactor program, studies in the x-ray laboratory, studies in the metallographic laboratory, the experimental plate-cladding program, and fuel and control element fabrication.
Date:
September 22, 1952
Creator:
Frye, John H., Jr., 1908-2001 & Bridge, W. H.
Object Type:
Report
System:
The UNT Digital Library
Homogeneous Reactor Project Quarterly Progress Report [for] Period Ending May 15, 1951
Technical report outlining the reconstitution of the Homogeneous Reactor Experiment Project (HRE) as the Homogeneous Reactor Project. Report covers the need for a broader developmental program to establish the feasibility of obtaining the potential advantages of homogeneous reactors for the production of fissionable materials and power. Details the ultimate objective of the ORNL program to provide the technical information required to determine the feasibility of a full scale plutonium power producing homogeneous reactor. [From Summary]
Date:
October 10, 1951
Creator:
Swartout, J. A.; Secoy, C. H. & Winters, C. E.
Object Type:
Report
System:
The UNT Digital Library
Homogeneous Reactor Project Quarterly Progress Report: November 15, 1951
From summary: "Construction of the HRE facility was essentially complete on November 15, 1951 except for minor revisions and final testing. A program of engineering and nuclear tests of the system hasbeen drawn up, and the tests will be started early in the next quarter. The only major HRE items for which design is not complete are the samplers for the fuel, [gas], and reflector systems. These will be completed in time to be installed before critical experiments begin; meanwhile, temporary sampling devices have been installed for use during the testing program."
Date:
April 1, 1952
Creator:
Swartout, J. A.; Secoy, C. H.; Welton, T. A.; Winters, C. E. & Thompson, W. E.
Object Type:
Report
System:
The UNT Digital Library
The Motion of Gas Bubbles in the HRE Reactor Core
This technical report presents "a theoretical study of the motion of gas bubbles in a rotating liquid" in order to "make comparison with experimental data from an investigation concerning the removal of gas bubbles from rotating liquids as descriped in ORNL-630." The report presents a literature review of "motion of gas bubbles in liquids" and provides a "summary of extensive experimental studies at the University of Tennessee." It also presents "an expression for the radial velocity of a gas bubble in a rotating liquid based on principles of mechanics." Finally, this report presents "a method for computing the steady state state [sic] gas hold-up in the HRE reactor core under power producing conditions." (From introduction)
Date:
January 18, 1952
Creator:
Peebles, F. N.
Object Type:
Report
System:
The UNT Digital Library
General Reactor-Engineering Research Quarterly Progress Report [for] Period Ending August 31, 1950
Technical report describing results on work which cannot be ascribed to one reactor program. Outlines the results of miscellaneous corrosion testing, the development of new shielding materials, the testing of irradiated plastics, and general heat transfer investigation. [From Preface]
Date:
November 13, 1950
Creator:
Lyon, R. N.
Object Type:
Report
System:
The UNT Digital Library
Solid State Division Quarterly Progress Report for Period Ending May 10, 1952
From introduction: "This report covers work performed in the Solid State Division for the quarter ending May 10, 1952." Topics covered include radiation metallurgy, engineering properties, solid state reactions, crystal physics, and special projects.
Date:
December 29, 1952
Creator:
Billington, D. S., (Douglas S.) & Howe, J. T.
Object Type:
Report
System:
The UNT Digital Library
Mathematics Panel Quarterly Progress Report for the Period Ending April 30, 1952
Report discussing the progress of various research projects by members of the Mathematics Panel at Oak Ridge National Laboratory for the quarter ending April 30, 1952.
Date:
July 24, 1952
Creator:
Householder, Alston S., (Alston Scott), 1904-1993 & Perry, C. L., (Clay Lamont), 1920-
Object Type:
Report
System:
The UNT Digital Library
Mathematics Panel Quarterly Progress Report [for] the Period Ending July 31, 1951
Technical report describing work on two special projects: (1) the Oak Ridge Computer; and (2) numerical integration of differential equations; multipoint boundary problems. The reports also describes work on thirty special problems.
Date:
November 26, 1951
Creator:
Householder, A. S.
Object Type:
Report
System:
The UNT Digital Library
Chemistry Division Quarterly Progress Report for Period Ending December 31, 1950
Quarterly technical report including reports on chemistry of source, fissionable, and structural elements, nuclear chemistry, radio-organic chemistry, chemistry of separations processes, chemical physics, radiation chemistry, and instrumentation. [From Abstract]
Date:
1951
Creator:
Taylor, E. H.; Boyd, G. E. & Bredig, M. A.
Object Type:
Report
System:
The UNT Digital Library
Chemistry Division Quarterly Progress Report for Period Ending March 31, 1951
Quarterly technical report including reports on chemistry of source, fissionable, and structural elements, nuclear chemistry, radio-organic chemistry, chemistry of separations processes, chemical physics, radiation chemistry, and instrumentation. [From Abstract]
Date:
May 10, 1951
Creator:
Lind, S. C.; Boyd, G. E. & Bredig, M. A.
Object Type:
Report
System:
The UNT Digital Library
Electromagnetic Research Division Quarterly Progress Report: Part I for Period Ending December 31, 1951
From abstract: "Operation of the 86-inch cyclotron has been continuous except for a three-day interruption caused by a water leak inside the vacuum chamber; monthly output has averaged over 210,000 [mu]a-hr; the average continuous (168-hour week) beam power has been approximately 5.5 kw; and the energy of the beam has been determined to be ~19.4 Mev. No changes due to radiation damage have been detected in Inconel tubes containing UF4-NaF-KF eutectic which were irradited in the 96-inch cyclotron with power inputs up to ~415 watts/cc. The major components of the 63-inch cyclotron have been fabricated and are being tested as the machine is being assembled. On the 22-inch cyclotron a radius-wise examination of the fine structure of the proton beam reveals definite proton orbits. Several grams of very pure uranium 235 have been prepared; the chemical recovery for first-stage separation of U 236 has been established as 97%; and facilities for laboratory-scale separation of plutonium isotopes are being prepared."
Date:
January 15, 1952
Creator:
Livingston, Robert S. & Howard, F. T.
Object Type:
Report
System:
The UNT Digital Library
Chemistry Division Quarterly Progress Report for Period Ending September 30, 1950
Technical report covering chemistry of source, fissionable, and structural elements, nuclear chemistry, radio-organic chemistry, chemistry of separations processes, chemical physics, radiation chemistry, and instrumentation at the Oak Ridge National Laboratory for the period ending September 30, 1950. [From Abstract]
Date:
March 1, 1951
Creator:
Taylor, E. H.; Boyd, G. E. & Bredig, M. A.
Object Type:
Report
System:
The UNT Digital Library
Homogeneous Reactor Project Quarterly Progress Report: March 1952
This quarterly progress report details the ongoing research happening at the Oak Ridge National Laboratory. In particular, this report discusses the current status of the Homogenous Reactor Experiment, boiling reactor and slurry studies, and general homogenous reactor studies.
Date:
July 14, 1952
Creator:
Swartout, J. A.; Secoy, C. H.; Welton, T. A.; Winters, C. E. & Thompson, W. E.
Object Type:
Report
System:
The UNT Digital Library
Homogeneous Reactor Project Quarterly Progress Report: July 1952
Report documenting the ongoing research and developments of the Oak Ridge National Laboratory's Homogeneous Reactor Project.
Date:
September 19, 1952
Creator:
Swartout, J. A.; Secoy, C. H.; Winters, C. E. & Thompson, William E., 1923-
Object Type:
Report
System:
The UNT Digital Library
Physics of Solids Institute Quarterly Progress Report [for] Period Ending April 30, 1951
Technical report outlining the building status, crystal physics, solid state reactions, radiation metallurgy, engineering properties, and liquid fuels activities of the Physics of Solids Institute in period ending April 30, 1951. [From Introduction and Summary]
Date:
November 26, 1951
Creator:
Billington, D. S. & Howe, J. T.
Object Type:
Report
System:
The UNT Digital Library