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Design and Feasibility Study of a Pebble Bed Reactor-Steam Power Plant
The status of development studies being conducted on a pebble bed power reactor is outlined. The items discussed are fuel element manufacture, stability, and reprocessing, and component development. (D.L.C.)
Date:
May 1, 1958
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
CIVILIAN POWER REACTOR PROGRAM. PART III. CORE-PARAMETER STUDIES FOR SELECTED REACTOR TYPES
A report is presented to provide a tool for evaluating the relative economic incentives for changing reactor core parameters. The cost relations are shown in terms of differential cost in lieu of total cost. A total cost for each reactor described is included so that power costs for a specified set of parameters can be obtained. A description is also included concerning 5 reactor types considered along with a discussion of the effects on power costs of varying the significant core parameters. A listing of basic references is given. (J.R.D.)
Date:
January 1, 1959
Creator:
Atomic Energy Commission, Washington, D.C. & Jackson and Moreland, Inc., Boston
Object Type:
Report
System:
The UNT Digital Library
Advanced energy sources and conversion techniques. Volume 1. [35 papers]
This report addresses the advanced energy sources and conversion techniques.
Date:
November 1, 1958
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Production of Pebble-Type Fuel Elements
A capillary-drop method of producing spherical shapes of brittle materials less than 0.l00 inch in diameter was developed. It appears to be a feasible means for producing large numbers of pebble-tyne fuel element cores. Coating of pebble-type fuel element cores by the coating-pan technique, though not adequately developed, showed promise. (auth)
Date:
June 1, 1955
Creator:
Brassfield, H.C.
Object Type:
Report
System:
The UNT Digital Library
GCRE-I HAZARD SUMMARY REPORT
The GCRE-I hazard summary report is supplemented in the following areas: geometry and operation of the steam cooling system, the reactor coolant by-pass, and by-pass valving; the means by which by-passed circuits are prevented from remaining unintentionally disabled; design details, and details of procedure for core flooding operations. (A.C.)
Date:
March 1, 1959
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Effects of Overpressures in Group Shelters on Animals and Dummies
S>Relative biological hazards of blast were studied in two types of communal air-raid shelters during Shots 1 and 8. Dogs, restrained within the shelters during detonation, were studied pathologically and clinically for blast injuries. Two anthropometric dummies were test objects for displacement studies utilizing high-speed photography. Physical data included pressure vs time and air-drag determinations. During Shot 1, animals sustained marked blast damages (hemorrhages in lungs and abdominal organs), three dogs were ataxic. and the dummies were rather violently displaced. In Shot 8, however, no significant injuries were found in the animals, and the dummies were minimally displaced. Analysis of the physical data indicated that blast injuries and violent displacements may occur at much lower static overpressures than previously assumed from conventional explosion data. Furthermore, biological damage appeared to be related to the rate of rise of the overpressure and air drag, as well as the maximum overpressure values. (auth)
Date:
September 1, 1953
Creator:
Roberts, J. E.; White, C. S. & Chiffelle, T. L.
Object Type:
Report
System:
The UNT Digital Library
RADIATION CREEP
Several theories of metal creep and radiation damage are studied, in order to determine whether creep rates under various conditions of irradiation can be predicted theoretically. It is found that if the creep is of the recovery type, and if the diffusion coefficient for radiationinduced vacancies is large enough, creep rates may be increased within a limited temperature range. Otherwise, radiation has no effect on creep rates. (T.F.H.)
Date:
December 1, 1957
Creator:
Gregory, D.P.
Object Type:
Report
System:
The UNT Digital Library
THE ELECTROMAGNETIC PINCH EFFECT FOR SPACE PROPULSION
The phenomenon of the electromagnetic pinch effect is used to accelerate ionized gases for space propulsion. Electrical energy, initially stored in capacitors, is discharged across two nozzle shaped electrodes wherein the radial pinch is converted to axial motion of the effected gases instead of confinement at the axis. The gas dynamics of a pinch using the hydrodynamical model of a msgnetic piston driving a shock wave is combined with the electrodynamics of the circuit to calculate the discharge behavior. Experiments on three different electrode designs are discussed and results compared with calculated values. Results are applied to one particular space propulsion system consisting of a nuclear energy source, a space radiator, a turbine-generator, capacitor, and a pinch tube. The specific mission analyzed is a one-way unmanned flight to a Mars orbit, starting from an Earth orbit. (auth)
Date:
August 1, 1959
Creator:
Kunen, A.E. & McIlroy, W.
Object Type:
Report
System:
The UNT Digital Library
RECONNAISSANCE FOR URANIUM IN THE CUZCO-AYAVIRI REGION, SOUTHERN PERU
Geologic and radiometric investigations of the CuzcoAyaviri region in southern Peru were made in a search for geologic features or structures which might be favorable for the occurrence of uranium. Outcrops consist of Lower Paleozoic sedimentary and metamorphic rocks; Permian to Carboniferous volcanic flows, tuffs, breccia and agglomerate, together with sedimentary rocks; and Cretaceous and sedimentary rocks. Cretaceous to Tertiary igneous rocks are acidic intrusives and extrusive rhyolite, dacite and trachyte. Tertiary to Quaternary volcanic tuffs, breccias and agglomerates are also present. Although no anomalous radioactivity was observed, favorable geologic features for the occurrence of uranium were noted at two localities. (auth)
Date:
October 1, 1957
Creator:
Brown, L.J. & Francisco, C.L.
Object Type:
Report
System:
The UNT Digital Library
Atmospheric Signals From Explosions and Their Interpretation
Results are reported from a series of experimental highexplosive shots under inversion conditions at the Nevada Test Site which were made in an attempt to refine blast prediction techniques. Applications of the data in determinations of the amount of energy which remains in the blast wave as it reaches acoustic level and in determinations of the magnitude of the reflection factor when the blast wave strikes the ground are discussed. Data on shock wave propagation are presented graphically. It is concluded that the blast phenomenology of high-altitude shots can be predicted by using modified Sach's scaling. With some extrapolation to the height-of-burst versus blast-yield curve, it should be possible to make order-of-magnitude predictions of blast effects from high-altitude shots up to heights of burst of 1,000,000 ft. (C.H.)
Date:
December 1, 1959
Creator:
Reed, J. W.
Object Type:
Report
System:
The UNT Digital Library
RECONNAISSANCE FOR URANIUM IN THE PROVINCES OF AYABACA AND HUANCA-BAMBA, DEPARTMENT OF PIURA, PERU
In 1957 a radiometric examination of rock outcrops in the Ayabaca and Huancabamba areas of northwestern Peru was made in conjunction with a geologic search for structures favorable for the occurrence of uranium minerals. No anomalous radioactivity was detected, and the geologic setting is believed to be generally unfavorable for uranium mineralization. (auth)
Date:
September 1, 1957
Creator:
Brown, L.J. & G.S., Morales
Object Type:
Report
System:
The UNT Digital Library
U.S. NAVY STRUCTURES. ANNEX 3.2 OF SCIENTIFIC DIRECTOR'S REPORT OF ATOMIC WEAPON TESTS AT ENIWETOK, 1951
Structures are subjected to a 50-kt blast, in order to obtain fundamental data on structures subjected to blast loading, to observe the response of the structures under this loading, and to determine the relative blast-resistance merits of several structural types. Modes of failure are determined. Shaped structures are found to be superdor to rectangular structures. Earth cover for the structures is also found to increase the blast resistance. It is found that standard Navy heavy bomb-proof structures with modifications can withstand a near-surface atomic burst at ground zero. (T.F.H.)
Date:
June 1, 1952
Creator:
Hayen, C.L.
Object Type:
Report
System:
The UNT Digital Library
Sodium Graphite Reactor. Quarterly Progress Report, July-September 1954
Technology of the Sodium Graphite Reactor. Reactivity calculations were made to study the application of steadystate plutonium feedback techniques to the use of diffusion plant tails for reactor fuel feed material. The performance and design of a twin core SGR power plant are given. Thermal neutron flux distribution measurements are reported for a six-rod fuel cluster and for a hollow uranium rod. A power cost calculation was made for a 1000-Mw SGR Th-U/sup 233/ breeder reactor which starts up on Th--U/sup 235/ alloy. Calculations were made on neutron leakage through the SRE shield. Research on reactor fuel elements and reactor materials are described. Corrosion and irradiation damage data at 5 x 10/sup 7/ r dose (150 deg F) on toluene as the SRE shield coolant indicate that the radioinduced corrosion of Fe, Al, and Cu in the SRE shield should be negligible. Preliminary results are summarized for l-Mev electron ir radiation studies of terphenyls at 400 to 450 deg C. Sodium Reactor Experiment. Progress is reported for various portions of the SRE project: reactor design and evaluation, fuel elements, moderator, reflector, structure, reactor cooling and heat transfer, instrumentation and control, shielding, and reactor services. (D.L.C.)
Date:
December 1, 1954
Creator:
Siegel, S. & Inman, G.M. eds.
Object Type:
Report
System:
The UNT Digital Library
F.C.D.A. Family Shelter Evaluation
In order to determine the effects of atomic explosions on small civil defense shelters for family use, 29 simple structures were built along an arc 1200 ft from the target point and exposed to Buster Bursts B, C, and D. The structures were of four basic types; covered-trench, metal-arch, wood-arch, and basement lean-to. Because of poor cohesive properties of the soil, much of the earth cover on the shelters was removed by the first shot. Since test procedures prevented restoration of structures and replacement of cover after each blast, test results were materially affected. Partly above-grade cover-trench shelters provided less protection against blast than belowgrade cover-trench shelters and were much less desirable as protection against gamma radiation. Metal-arch shelters set in concrete appeared to have good potentialities with minor design modifications. Wood-arch shelters as designed, proved to be unsuitable substitutes for metalarch shelters. No worthwhile information was obtained on basement lean-to shelters. Unusual conditions disclosed design deficiencies in entrance construction, front, and end sections, and effective earth cover. Small shelters are potentially capable of meeting requirements of civil defense. (auth)
Date:
March 1, 1952
Creator:
Flynn, A. P.
Object Type:
Report
System:
The UNT Digital Library
Sources of Early Teller Light.
None
Date:
January 1, 1958
Creator:
Parker, L. W.
Object Type:
Report
System:
The UNT Digital Library
GRAIN REFINEMENT PRODUCED BY AN ALPHA PHASE ANNEAL OF BETA PHASE HEAT TREATED AND WATER QUENCHED URANIUM
During an experiment involving alpha phase annealing (at 610 to 655 deg C for 5 and 10 min) of beta-quenched uranium, it was determined that the relatively coarse, irregular shaped grains (0.08 to 0.150 mm in diameter) in the beta-quenched structure, were replaced by fine equiaxed grains (0.04 to 0.09 mm in diameter). (auth)
Date:
January 1, 1955
Creator:
Gardner, H.R.
Object Type:
Report
System:
The UNT Digital Library
Positional Tolerancing at Sandia Corporation
The positional tolerance method of dimensioning is described. The emphasis is placed on the elimination of ambiguities and increase in tolerances provided by this method as compared to the older, bilateral method. (auth)
Date:
May 1, 1959
Creator:
Eichert, F. F. & Nicovich, P. A.
Object Type:
Report
System:
The UNT Digital Library
DESIGN OF A HIGH TEMPERATURE AIR MOTOR
The basic design and development concepts are presented on a six vane air motor intended for use at elevated temperatures. (auth)
Date:
January 1, 1958
Creator:
Schnorr, F.W. Jr.
Object Type:
Report
System:
The UNT Digital Library
Concentration of Plutonium by Cation Exchange--Stabilization of Pu(III) in Nitric Acid
A study to define the effectiveness limits of sulfamic acid and to discover other better stabilizers for Pu(III) is described. Ascorbic and isoascorbic acids, used in conjunction with sulfamic acid reduced Pu(IV) to stable Pu(III) in nitric acid. Aminoguanidine sulfate also retarded the oxidation of Pu(III) but did not reduce Pu(IV). (J.R.D.)
Date:
February 1, 1959
Creator:
Tober, F. W. & Russel, E. R.
Object Type:
Report
System:
The UNT Digital Library
REACTIVITY LIFETIME. TEST RESULTS DL-S-225(T-612118A). Section I, Second Performance
The performance, reliability, stability, and reactivity lifetime variations of the Shippingport PWR are determined under normal steady state conditions. These characteristics are studied over a period of 758 EFPH, at a power level of about 60 Mw(e). Flux-tilt corrections and plant operations during this time are described. (T.F.H.)
Date:
March 1, 1959
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
[Miss Beula Harriss with Two Green Jackets]
Photograph of Miss Beulah Harriss (right) with two Green Jackets selling Homecoming tickets. The women are behind a table that holds signs reading "Football Tickets" and "Registration." The entrance to a coffee shop can be seen in the left of the image.
Date:
November 1, 1956
Creator:
unknown
Object Type:
Photograph
System:
The UNT Digital Library
[News Script: Barry]
Script from the WBAP-TV/NBC station in Fort Worth, Texas, covering a news story about a bail bond hearing for Betty Louis Barry, charged with killing a Dallas bar owner named Chicken Louie Ferrantello.
Date:
August 1, 1956
Creator:
WBAP-TV (Television station : Fort Worth, Tex.)
Object Type:
Script
System:
The UNT Digital Library
[News Script: Oilman Faces Extradition]
Script from the WBAP-TV/NBC station in Fort Worth, Texas, covering a news story about Eugene M. Shirley being extradited from Texas to California to faces charges for selling oil leases without a permit.
Date:
August 1, 1956
Creator:
WBAP-TV (Television station : Fort Worth, Tex.)
Object Type:
Script
System:
The UNT Digital Library
[News Script: Rylie School Fuss]
Script from the WBAP-TV/NBC station in Fort Worth, Texas, covering a news story about the proposed abolition of the school administration of Rylie in Dallas, Texas.
Date:
August 1, 1956
Creator:
WBAP-TV (Television station : Fort Worth, Tex.)
Object Type:
Script
System:
The UNT Digital Library