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University of Illinois, Graduate College, Digital Computer Laboratory, Technical Progress Report
The report includes summary reports in five areas (1) High-speed computer program, (2) Switching circuit theory, (3) ILLIAC use and operations, (4) IBM 650 use and operation, and (5) General laboratory information.
Date:
October 1959
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
High Energy Storage Ceramic Capacitor. Quarterly Report No. 5 [for] January 1, 1958 -- March 31, 1958
The chief purpose of this contract is the development of ceramic materials with high dielectric constant and high dielectric strength values, and suitable for use of dielectrics in capacitors capable of storing large amounts of energy in small volumes. Work performed during the fifth quarter included (1) Material development and sample preparation; (2) Sample testing; (3) Optical studies of titanates; (4) Fabrication of large ceramics; and (5) Capacitor design.
Date:
October 31, 1960
Creator:
Lupfer, D. A.
Object Type:
Report
System:
The UNT Digital Library
High Energy Storage Ceramic Capacitor. Quarterly Report No. 4 [for] August 19, 1957 -- December 31, 1957
The chief purpose of this contract is the development of ceramic materials with high dielectric constant and high dielectric strength values, and suitable for use of dielectrics in capacitors capable of storing large amounts of energy in small volumes. Work performed during the fourth quarter included (1) Material development and sample preparation; (2) Sample testing; (3) discussion of ceramic density measurements; (4) Optical studies of titanates; (5) Fabrication of large ceramics; and (6) Capacitor design.
Date:
October 31, 1960
Creator:
Lupfer, D. A.
Object Type:
Report
System:
The UNT Digital Library
Determination of Flux Levels in Neutron Detector Wells. Section II. First Performance. Core I, Seed 1. Test Results DL-S-242, T-641311
The purpose of the test was to determine the neutron flux level in a BF3 counter well during the second performance of DL-S-225. The measured activity of the irradiation brass bolt was due entirely to the radioactive decay of Zn65. The thermal neutron flux in the BF3 counter well during the second 1000 hour run was calculated to be 2.5 x 10(9) neutrons/cm2 sec.
Date:
October 30, 1959
Creator:
George, John R. & Cappola, M., Jr.
Object Type:
Report
System:
The UNT Digital Library
Studies of Reactor Containment : Monthly Technical Progress Report No. 29
The report covers work performed during the period September 1, 1959 through September 30, 1959. The general objectives of the program of "Studies of Reactor Containment" are to accomplish theoretical and experimental investigations of the loads to which external containment structures for nuclear reactors are subjected in the vent of a violent incident at the reactor core, the evaluation of methods of reducing that loading, and the study of the response of and design criteria for external containment structures as a result of such loading. Progress of technical effort during the report period is summarized for each of the eight tasks of the program.
Date:
October 23, 1959
Creator:
Zaker, T. A. (Thomas Allen)
Object Type:
Report
System:
The UNT Digital Library
Physical Metallurgy of Uncommon Metals
The progress report covers the work carried out during the first year 1958-59 in the department of metallurgy at M.I.T. under the supervision of Professors John T. Norton and Robert E. Ogilvie. A brief summary of the work that has been completed and in some cases still continuing is given. The work has been listed under the following general headings: (1) Diffusion studies in the uranium-niobium system, (2) X-ray detection of cladding defects, (3) Precision X-ray stress analysis of uranium and zirconium, (4) Magnetic studies of Fe3O3 single crystals, (5) Crystal structure studies of yttrium compounds, (6) Structural relationships in ZrFe2-ZrCr2 system.
Date:
October 15, 1959
Creator:
Norton, John T. & Ogilvie, Robert E.
Object Type:
Report
System:
The UNT Digital Library
The Use of an Electronic High Vacuum Pump on Various Types of Mass Spectrometers
A commercially available electronic high vacuum pump has bee tested on various types of mass spectrometers used at the Oak Ridge Gaseous Diffusion Plant. Considerable savings in operating and maintenance costs can be realized from the use of this pump. the greatest savings result from the elimination of the cold trap required for the diffusion pump whether it is cooled by liquid nitrogen or by mechanical refrigeration. additional savings results from the fact that the pump currently is usually an adequate indication of the pressure in the spectrometer tube and that a continuously running mechanical fore pump is not required.
Date:
October 9, 1959
Creator:
High, R. D. & Schede, R. W.
Object Type:
Report
System:
The UNT Digital Library
Loss of Level in D/P Cell Reference Chambers. Section I. First Performance. Core I, Seed 1. Test Results DL-S-279 (RNI-23)
The purpose of the test is to determine the reason for the decreases in the liquid levels of the reference chambers serving the reactor plant remote liquid level indicators. The remote gages and the local liquid level gages agreed closely for the Reactor Plant Component Cooling Water Expansion Tank and the Coolant Discharge and Vent System flash tank and blow-off tank. There appeared to be no loss of water from the D/P cell reference chambers for these two systems over the period of the test. There was no definite indication of leakage from the Valve Operating System reference chamber, however, the differences between remote indicator readings and the sight glass readings are attributed to sticking of the ball check valve on the upper sight glass, inaccuracy of the readings and instrument error. It is recommended that he lower shut-off valve on the upper sight glass be cleaned and reopened prior to reading the sight glass to ensure that the ball check valve is not stuck in the closed position. No lead age was found in any of the level indicating systems.
Date:
October 30, 1959
Creator:
Gentry, George
Object Type:
Report
System:
The UNT Digital Library
Finite Amplitude Stress Waves in Rocks
Production of new surface area by fracturing of rock behind an explosive-initiated high amplitude wave is probably an important mechanism for energy absorption in the region near n explosion in rock. Explosive-initiated high amplitude pulses in cylinders of three different rocks and two concretes were studied to determine the pulse amplitude need to damage the cylinders. An average high amplitude wave velocity of half the elastic wave velocity was observed in a porous limestone. Elastic theory is not expected to apply to a wave fracturing a rock. Rapid decreases in original free surface velocity of the greywacke rock which was most thoroughly tested indicate that this rock sustained tensile stresses about a hundred times greater than its probably tensile strength for times a long as fifty microseconds.
Date:
October 1, 1959
Creator:
Grine, Donald Reaville
Object Type:
Report
System:
The UNT Digital Library
Low Speed Wind Tunnel Tests of Several Airfoil Sections Through 360 ° Angle of Attack
A series of two-dimensional airfoils were run through a complete 360 ° angle of attack range to determine their low-speed force characteristics. The airfoils were chosen in an attempt to vary as many parameters (such as thickness, camber, thickness distribution, etc.) as possible with the limited number of shapes that time permitted. All airfoils tested had lift curves with two distinct stalls and quite similar drag curves between 0 ° and 90 ° angle of attack. The highly cambered sections developed peculiar characteristics in the inverted and trailing edge forward positions, as might be expected. The effective test Reynolds number of 0.81 x 10(6) based on the model chord of one foot.
Date:
October 14, 1954
Creator:
Reed, James F.
Object Type:
Report
System:
The UNT Digital Library
A Comparison of the Neutron Yields from Low-Voltage Sources
The description of the thick-target neutron yields from the D(t,n)He4 and the D(d,n)He3 reactions is calculated as a function of the energy of the bombarding particles. For 60-kev particles the ratio is 108. I increases to 168 at 100 Kev and to 194 for 120-kev particles. A qualitative discussion of the yields from various deuterium target leads to the conclusion that the greatest yield would come from the target which has the lowest stopping cross section per deuterium atom.
Date:
October 6, 1954
Creator:
Cooper, John N.
Object Type:
Report
System:
The UNT Digital Library
The Equation of State of Water on the Thomas-Fermi Model
Two methods are described for extending the Thomas-Fermi model of a compressed atom to molecules or mixtures of the type Z Zn. The methods are applied to H2O at zero temperature to determine pressure and internal energy as functions of the density, the position of the protons relative to the oxygen nucleus, and the electrostatic potential distribution within the molecule.
Date:
October 24, 1955
Creator:
Latter, A. & Latter, R.
Object Type:
Report
System:
The UNT Digital Library
Media for Air Cleaning and Air-Assay Purposes : Final Summary Report for Period Ending December 31, 1954
Work was completed on the high-temperature, high efficiency air filter. Technical assistance was given at a large-scale, privately financed run of an all-glass medium. Full-size filers have been produced in quantity and are offered by manufacturers; it is considered that commercial manufacture has been established. A survey was made of air sampling practices at 37 laboratories. Analysis of the survey results indicated that 22 different kinds of air-sampling filer media were in use among the laboratories questioned. We have recommended that air-assay practice be simplified by use of fewer media. A group of five media has been proposed as adequate for meeting all requirements. Laboratory work was done on the development of a high-efficiency, low-ash, all-purpose, air-assay paper. Two methods of approach were tried. In one an effort was made to produce cellulose fibrils in sufficient quantity and quality to act as the fine-fiber component of a filter. Only moderate success was attained. Better promise was shown by combining synthetic organic microfibers with cellulose fibers in a wet-formed sheet. No plant work was undertaken on this item.
Date:
October 3, 1955
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Local Reactivity "Worth" in the HRT
The effect of adding small quantities of fuel or poison to the HRT has been estimated using perturbation theory. The results have been reduced to a single relation and a set of graphs which make the estimation of added reactivity relatively simple. The perturbation theory results are compared with multigroup results and reasonable agreement is demonstrated; however, there is some question concerning the prompt neutron lifetime.
Date:
October 11, 1960
Creator:
Jaye, S. & Vondy, D. R.
Object Type:
Report
System:
The UNT Digital Library
EXPIRE - A Reactivity Lifetime Calculation
EXPIRE is a calculation which predicts the reactivity-lifetime, instantaneous and integrated effective multiplication constants and instantaneous and integrated effective multiplication constants and instantaneous conversion ratio for heterogeneous reactors. The concentration of all the isotopes of interest from Th232 to Am243 are calculated as a function of time using the average reactor power density and a uniform flux distribution. The equations have been programmed for the IBM-704 computer and the average running time is approximately two minutes per reactor lifetime.
Date:
October 13, 1960
Creator:
Jaye, S.
Object Type:
Report
System:
The UNT Digital Library
Estimation of Reaction and Heat Release Rates for Graphite Oxidation
A literature study has been made of rates for the reaction of oxygen with high-purity artificial graphite. Values from a number of sources have been expressed on a common basis which provides approximate correction for the retarding effects of oxygen diffusion in the graphite pores. The corrected rates can be correlated by the equation k = 7.24 x 10^9 exp (-22 100/T), where k has units of weight fraction oxidized per hour and T as in °K. Effects of oxygen concentration, solid and gas-phase contaminants, and radiation on the observed rates are discussed. Methods for estimating rates and spatial distribution of heat release during graphite oxidation are presented. These should be of value in analyzing the hazard of a graphite fire following a coolant system rupture in a gas-cooled, graphite-moderated reactor.
Date:
October 19, 1960
Creator:
Prados, John W.
Object Type:
Report
System:
The UNT Digital Library
Dry Maintenance Facility for the HRT
A portable shield has been designed, developed, fabricated and shop tested to provide the HRT with a facility for direct dry maintenance operations. It provides temporary replacement for any one of the lower roof plugs and should permit many operations to be performed without flooding the reactor cell with water.
Date:
October 11, 1960
Creator:
Holz, P. P.
Object Type:
Report
System:
The UNT Digital Library
Electrical Design Standards and Graphical Symbols
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.
Object Type:
Report
System:
The UNT Digital Library
Decontamination of EGCR Charge and Service Machines
Methods for the noncorrosive removal of volatile fission products and UO2 dust from carbon steel and stainless steel have been developed. Procedures for applying these methods to the decontamination of the EGCR charge and service machines are described.
Date:
October 13, 1960
Creator:
Meservey, A. B.; Chilton, J. M. & Ferguson, D. E.
Object Type:
Report
System:
The UNT Digital Library
The Effect of Gas Film Resistance in Diffusion from a Porous Septum into a Fluid Stream
The theory of mass transfer into a flowing fluid is utilizes to estimate the effect of gas film resistance on overall rates of transfer through a porous septum. The expressions developed for the mass transfer ratio...
Date:
October 10, 1960
Creator:
Saunders, A. R.
Object Type:
Report
System:
The UNT Digital Library
Determination of Free Acid in Highly Radioactive Solutions by Remotely Controlled Conductometric Titration
A conductometric titration method described by Goldstein was adapted for use in a remote analytical facility. The results obtained by mean of experiments made prior to this adaptation indicated that methanol is the most satisfactory medium in which to determine excess sulfuric acid in uranyl sulfate solutions that stimulate Homogeneous Reactor type fuel. When methanol is used, the complexation of hydrolyzable ions with sodium fluoride, as described by Pepkowitz, Sabol, and Dustin, is not required.
Date:
October 13, 1960
Creator:
Corcoran*, R. E.; Zittel, H. E.; Dinsmore, S. R. & Koskela, U.
Object Type:
Report
System:
The UNT Digital Library
Instructions for the Operation of an ORACLE Code for a Monte Carlo Solution of the Transport Problem for Gamma Rays Incident Upon a Slab
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 distribution of the reflected and transmitted energy current. All the answers except for energy deposition and reflected and transmitted energy current are optional.
Date:
October 26, 1960
Creator:
Aulender, S. & Trubey, D. K.
Object Type:
Report
System:
The UNT Digital Library
Statue of Pilot Plant Section Equipment Development Program
A development program is being carried out in the pilot plant to improve the equipment involved in monitoring, metering and pumping process streams. The equipment under development includes an alpha monitor, a gamma monitor, a waste water monitor, a liquid flow rate meter, a canned rotor pump, a diaphragm pump, air lifts and a pressure tank pump. This report presents the present status of the testing program.
Date:
October 14, 1960
Creator:
Mackey, T. S.
Object Type:
Report
System:
The UNT Digital Library
The Helium Purification System for the Proposed Pebble Bed Reactor Experiment
A helium coolant side-stream purification system consisting of parallel sections for radioactive and non-radioactive de-contamination was designed for the proposed Pebble Bed Reactor Experiment. Primary equipment components are two gas coolers, gas heater, charcoal delay trap, CuO oxidizer, Molecular Sieve adsorber, and full flow filter. The charcoal delay trap is sized to provide a hold-up of 30 minutes for Kr isotopes, 6hr hold-up for Xe isotopes, and 99.9% retention of iodine isotopes resulting in "de-contamination factors" varying from l for Kr85 to 556 for I131. Non-radioactive de-contamination will result in a steady state concentration of CO2 in the coolant of 20.8ppm or less.
Date:
October 25, 1960
Creator:
Scott, C. D.; Finney, B. C. & Suddath, J. C.
Object Type:
Report
System:
The UNT Digital Library