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NACA Research Memorandums
4,120
NACA Technical Notes
2,223
Atomic Energy Commission Reports
1,874
United States Geological Survey Reports
1,253
Trace elements investigations report
749
Hanford Works Reports
710
University of California Radiation Laboratory Reports
484
HW (Series)
475
Oak Ridge National Laboratory Reports
473
NACA Technical Reports
382
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12,522 Matching Results
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Chemical Cleaning and Storage of the HRT Steam and Closed Cooling Water Systems
A 10% phosphoric acid solution contain 0.2% "Rodine 45" inhibitor is recommended to be used for the chemical cleaning of the HRT seam and closed colling water systems. Wet storage is recommended for both of these systems. The steam system is to be stored with steam condensate containing 100 ppm hydrazine, and closed cooling water system is to be stored with steam condensate containing 1000 ppm potassium chromate.
Date:
June 5, 1957
Creator:
McLain, Howard A.
Object Type:
Report
System:
The UNT Digital Library
The Reaction of Zirconium with Uranium Dioxide
An investigation of the causes of observed explosive reaction of zirconium-coated uranium dioxide on dissolution in nitric acid was conducted. It was concluded that such a reaction is to be expected. Possible but unconfirmed methods of alleviating the problem are suggested.
Date:
June 11, 1957
Creator:
Robinson, M. T.
Object Type:
Report
System:
The UNT Digital Library
HRP In-Pile Corrosion Test Loops -- Operation of In-Pile Loop L-2-10
Loop L-2-10 was the eighth completed in-pile loop experiment and the first in the HB-2 beam hole at the LITR. The loop was inserted on July 2, 1956 and removed on September 3, 1956. The installation, operation, removal, and general performance of the HRP in-pile solution corrosion loop in the HB-2 beam hole at the LITR are described.
Date:
June 13, 1957
Creator:
Walter, F. J.
Object Type:
Report
System:
The UNT Digital Library
Fuel Exposures in Heterogeneous Thorium Breeder Reactors
This technical report summarizes some preliminary calculations of fuel exposures attainable in heterogeneous reactors, fueled with a mixture of thorium and U233, moderated with D2O and operated with no net loss in fissionable fuel.
Date:
June 13, 1957
Creator:
Prince, B. E. & Jaye, S.
Object Type:
Report
System:
The UNT Digital Library
Summary of Corrosion Data for HRT Mockup Operational Period Ending February 16, 1957
The HRT mockup was shut down February 16, 1957 after operating for 576 hours on high concentration uranyl sulfate. At this time, all corrosion samples in the system were removed and replaced, and the wire extending thought the letdown hear exchanger was removed of examination.
Date:
June 17, 1957
Creator:
Wacker, R. E. & Griese, J. C.
Object Type:
Report
System:
The UNT Digital Library
Liquid-Liquid Extraction of Uranium and Plutonium from Hydrochloric Acid Solution with TRI (Iso-Octyl) Amine. Separation of Uranium and Plutonium from Thorium and Fission Products
A new and rapid method for the liquid-liquid extraction of uranium and plutonium from hydrochloric acid solution is based on the use of tri(iso-octyl)amine dissolved in xylene or methylisobutylketone. Uranium and/or plutonium are separated from thorium, alkalis, alkaline earths, rare earths, zirconium, niobium, ruthenium and other elements which do not form anionic species under the conditions described. The technique may be used for either tracer or macro quantities of uranium. Several practical applications of the method for the separations chemist are proposed.
Date:
June 18, 1957
Creator:
Moore, Fletcher L.
Object Type:
Report
System:
The UNT Digital Library
Spectrophotometric Determination of Cerium with Tiron
A spectrophotometric method for the determination of cerium with Tiron (disodium-1,2-dihydroxybenzene-3,5disulfonate) was applied to the determination of cerium in samples which contain uranium and zirconium. The cerium-Tiron complex in solutions of pH 8 or greater exhibits an absorption maximum of 500 mu . This reagent does not react with any other lanthanide element. The interference of iron, uranium, and zirconium was eliminated by extracting these interfering elements with a solution of trioctylphosphine oxide in cyclohexane. (auth)
Date:
June 14, 1957
Creator:
McDowell, B. L.; Meyer, A. S., Jr. & White, J. C.
Object Type:
Report
System:
The UNT Digital Library
Test Results on a Heater-Cooler Unit for the ORR In-Pile Loop
Tests have been completed on a combination heater-cooler unit for use in in-pile loops designed to operate in beam hole HN-1 of the ORR facility. The unit is designed to use air-water mixtures as the coolant. the coolant flows through a spiral of 3/8-inc. diameter tubing cast in aluminum around the 3/8-in. IPS loop pipe. four 1000-w calrod-type electric heating elements are cast into the aluminum, along with the cooling coils to provide loop heating.
Date:
June 28, 1957
Creator:
Mauney, T. H. & Savage, H. C.
Object Type:
Report
System:
The UNT Digital Library
Evaluation of Loop Components and Admixed Thorium-3% Uranium Oxide Slurry in 200A Loop (Summary of Run 200A-10)
A slurry addition system, a venturi in the circulation loop, and two types of sampling systems were tested with 500 and 800 g Th/kg H2O slurries in the 200 gpm loop at 250 C and 1000 psig. The addition system worked satisfactorily while the venturi gave erratic readings during part of the run. Both the capillary and in-line sampling systems proved satisfactory with the capillary sampler being much easier and more convenient to operate. The addition of uranium to the slurry had no appreciable effect on the handling characteristics, the attack rate on 347 SS, the particle size and crystallite size of the thorium oxide. The attack rate was found to be 1 mpy during the first 100 hours of circulation and decreased to 0.4 mpy at the end of the run.
Date:
June 13, 1957
Creator:
Gallaher, R. B.; Kitzes, A. S. & VandenBulck, C. F.
Object Type:
Report
System:
The UNT Digital Library
Sampling the Upper Atmosphere for Particulate Matter. First Quarterly Progress Report, June 15 to September 25, 1959
An analysis to screen the various particle-collection systems which might be used for sampling the upper atmosphere with a rocket sampling vehicle has been undertaken. Although the current model of the Goetz Aerosol Spectrometer is not suitable, a high-flow-rate sampler of this general type, if it can be designed, appears promising. The design of such a sampler will be undertaken in future work. If a workable design is possible, this method would appear to be the most promising of all.
Date:
November 1959
Creator:
Markels, Michael, Jr. & Morgenthaler,John H.
Object Type:
Report
System:
The UNT Digital Library
Some Design Considerations for the Megatron Coil
The relation between the maximum permissible transverse energies of particles that can be focused, the azimuthal energy, and the beam width is discussed relative to Megatron coil design. It is shown that deep potential wells for focusing can be obtained only at the expense of a narrow beam. (C.J.G.)
Date:
November 1959
Creator:
Landau, Ronald W.
Object Type:
Report
System:
The UNT Digital Library
Review of the Intermetallic Compounds of Plutonium
Crystallographic data on intermetallic Pu compounds are presented. The compounds are described in alphabetical order of the alloying compound. A table is included in which all of the Pu compounds and isotopes mentioned in the report are listed along with the corresponding references.
Date:
1959
Creator:
Ellinger, F. H.
Object Type:
Report
System:
The UNT Digital Library
Equilibrium Extraction Characteristics of Alkyl Amines and Nuclear Fuels Metals in Nitrate Systems. Progress Report No. V for the Period July 1 - September 30, 1959
Extraction of HNO3 by triaryl amine was studied by equilibrating equal volumes of aqueous and organic phases at 25C. At HNO3 concentrations of 2 to 10 N the acid in the organic phase in excess of that equivalent in the amine concentration was proportional to the concentration of HNO3 in the equilibrated aqueous phase. other workers report similar results with nitric acid and tri-n-octyl amine in benzene. Zirconium extractions carried out at 10g Zr/1 with 0.35 M TLA nitrate in toluene showed a fourth power dependence of EZR on HNO (aq) over the range 2 to 10N. Maximum distribution ratios calculated from samarium scouting experiments using amines in kerosene were about 5 x 10(-3) for Primene JMT, 10(-4) for TLA, 10(-5) for S-24, and less than zero for DTDA. Distribution rations in the extractions ranged from ERu = 0.12 for 0.35M TLA shaken with an initially new 2N HNO3 solution for 15 minutes. Data on Zr and Ru standardization in TLA solution for spectrophotometric analyses are included.
Date:
December 4, 1959
Creator:
Mason, Edward A. (Edward Allen), 1926-1994. & Vaughen, Victor C.
Object Type:
Report
System:
The UNT Digital Library
Radioisotope X-ray Generator. Quarterly Progress Report No. 2 Covering the Period from October 1, 1959 to December 31, 1959
An electromagnetic quadrupole lane system been developed and constructed which will be used to study the focusing of beta-rays. A current-carrying wire analog has also been developed to make preliminary studies of the accessory lane parameters.
Date:
1959
Creator:
Chisholm, M. W.; Lambert, R. J. & Kastner, J.
Object Type:
Report
System:
The UNT Digital Library
Corrosion of INOR-8 and Inconel Dissolver Components of the Fluoride-Volatility Process
The corrosion of INOR-8 and Inconel dissolver components used in the fluoride volatility process for the dissolution of zirconium with anhydrous HF in molten salts was investigated. Ten dissolution runs were made using simulated subassemblies formed from Zircoloy-2. The dissolver and components were made from INOR-8. Both the dissolver vessel and draft tube were examined several times during the series of runs. The solids which formed at different areas in the system were also analyzed. The results showed that the corrosion of the INOR-8 dissolver was greatest at the salt-off gas interface and at the HF gas inlet. Almost all of the corrosion took place during run 10 when no zirconium was present. Portions of the dissolver were cleaned after run 10 and sent to BMI for evaluation. The results of the Battelle metallographic examinations of the portions are included along with several photographs. The results with Inconel tubes in the copper-lined hydro-fluorinator confirmed the observations that the liquid gas interface areas were the most susceptible to attack.
Date:
December 30, 1959
Creator:
Fink, Frederick W.
Object Type:
Report
System:
The UNT Digital Library
Geologic Reconnaissance of the Southwest Flank of the Zuni Uplift, New Mexico
Report presenting the results of a survey in the southwest segment of the Zuni Uplift sedimentary formations. The report includes figures and plates that provide an overview of physical geography in the area, as well as economic geography, including mineral deposits.
Date:
August 1955
Creator:
Konigsmark, Ted
Object Type:
Report
System:
The UNT Digital Library
Uranium-235 Abundance by Gamma Spectrometry
Techniques are described for determining U-235 abundance by measurement of the intensity of 0.18 Mev gamma radiation. One method involves measurement of the ratio of the intensity of 0.18-Mev radiation to that of 0.1 Mev radiation. The preferred technique consists of chemical separation of uranium followed by direct counting of 0.18-Mev photons. Application has been made in analysis of uranium samples of abundances in the range of 0.05% to 93%. Accuracy appears to be better than 3% if the abundance is between 0.7% and 100%. Findings in the self-absorption of 0.18 Mev radiation in uranium oxide are presented.
Date:
January 2, 1957
Creator:
Reynolds, S. A. & Eldridge, J. S.
Object Type:
Report
System:
The UNT Digital Library
Time Variation of Thermodynamic Parameters of a Gas in the Region of a Shock Front : Progress Report III
The original goal of this investigation was to compare the thermodynamic characteristics of the gases in and behind the shock fronts in gases at initial pressures in the millimeter range and to compare these characteristics in the geometries of single and double discharges. The shock fronts were not visible, so it was not possible, at these pressures, to get visual data from the shock front itself. The parameters giving the properties of the gases were faces. Measurements made with an image converter camera (which is still in the development stage) agree well with these made with a photomultiplier tube. Differences are observed between the front velocities in the cases studied. These are of the order of 3 to 15 per cent. Considering the nature of the shot to shot fluctuations in the discharges and the inductance variation between the single and double discharges represent a physical difference. The mathematical treatment which says that two equal strength colliding with a wall behaves, has not been shown to be inadequate by this investigation. It was hoped that a stronger confirmation could be fien to the theory, but the accuracy of the data does not warrant it.
Date:
November 30, 1959
Creator:
Eastmond, E. John (Elbert John), 1915-; Hales, Richard Wayne, 1926-; Hoyt, G. D.; Baird, Ramon C.; Chowdhury, P. N. R. & Strong, William J
Object Type:
Report
System:
The UNT Digital Library
A Survey of Non-Fuel-Bearing Materials for the Marine Gas-Cooled Reactor
Results of an initial examination of non-fuel-bearing materials for the Marine Gas Cooled Reactor are presented. Areas given specific attention include structural and cladding materials and graphite moderator. Other areas not included because of classification include zirconium hydride moderator and control materials. In each report section, available pertinent information is summarized and a plan for future work is given.
Date:
May 1, 1958
Creator:
Bokros, J. C.; Dijkstra, L; & Merten, U.
Object Type:
Report
System:
The UNT Digital Library
Paper for Glasgow Conference on Nuclear Physics: Cosmotron Production of Heavy Mesons
One might expect that the Cosmotron would offer certain advantages over cosmic rays for the study of heavy unstable particles; provided, of course, that it can produce them. In the first place, the conditions under which they are produced could be controlled to a considerably greater extent. In the second place, it might be possible to arrange conditions under which they would be observed more abundantly, an actual beam of heavy mesons being the ideal situation.
Date:
July 1954
Creator:
Thorndike, A. M.
Object Type:
Report
System:
The UNT Digital Library
Uranium Occurrences, Fall River Area, Clear County, Colorado [Fiche]
This report describes the Fall River Area that was examined for favorable areas between known occurrences of pitchblende at Quartz Hill and at Lawson.
Date:
October 16, 1951
Creator:
Smith, Loren E. & Baker, Kenneth E.
Object Type:
Report
System:
The UNT Digital Library
Drilling at Temple Mountain, San Rafael Swell, Emery County, Utah [Fiche]
This report describes two drilling projects that were successful in discovering ore deposits at Temple Mountain.
Date:
August 1952
Creator:
Anderson, Andrew H. & Miller, Richard D.
Object Type:
Report
System:
The UNT Digital Library
Interim Report on Diamond-Drill Exploration and Plans for Additional Drilling in the Monogram Mesa Area, Montrose County, Colorado [Fiche]
The following report describes investigations of the geology and uranium-vanadium deposits of Monogram Mesa and adjacent areas in Paradox Valley and Bull Canyon.
Date:
July 1955
Creator:
Flint, Arthur E.; Wallace, Roberts M. & Holzle, A. F.
Object Type:
Report
System:
The UNT Digital Library
Uranium Occurrences, Fall River Area, Clear Creek County, Colorado
Discussing occurrences of uranium in the Fall River Area of Clear County, Colorado
Date:
October 16, 1951
Creator:
Smith, Loren E. & Baker, Kenneth E.
Object Type:
Report
System:
The UNT Digital Library