Resource Type
Serial/Series Title
NACA Research Memorandums
440
NACA Technical Notes
236
Atomic Energy Commission Reports
231
United States Geological Survey Reports
94
United States Bureau of Mines Reports
60
NACA Technical Reports
57
Hanford Works Reports
49
HW (Series)
47
Trace elements investigations report
42
ORNL (Series)
41
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1,256 Matching Results
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A Solvent Extraction Method for Neptunium (237) Analysis
Technical report describing a rapid and quantitative radiochemical method for the analysis of neptunium (237). This method is based on the extraction of neptunium (IV) with thenoyl-trifluoracetone in xylene. Neptunium (237) is separated free from other alpha emitters and from non-radioactive interferences, and the method may be readily adapted to remote control. [From Abstract]
Date:
July 10, 1951
Creator:
Moore, Fletcher L.
Object Type:
Report
System:
The UNT Digital Library
Chemical Technology Division Pilot Plant Section Report for November, 1950- January, 1951
Technical report presenting a summary of the flowsheets, equipment, and progress for the Oak Ridge National Laboratory (ORNL) pilot plant development of the Purex Process and of the ORNL Metal Recovery Program. As of this report, conversion of the Purex pilot plant equipment in Buildings 3019 and 3503 is 90% complete. The building structure for the ORNL Waste Metal Recovery plant had been completed, and 15% of the process equipment had been installed. The first hot runs for this plant were scheduled for June, 1951. [From Abstract; Introduction]
Date:
March 8, 1951
Creator:
Jackson, H. K.
Object Type:
Report
System:
The UNT Digital Library
Shielding Reactor Corrosion Studies
Technical report outlining the investigation of corrosion on MTR type fuel elements for the Shielding Reactor in filtered water. Report includes two basic types of protection: element pretreatment by either anodizing or alodizing, and solution control using nitric acid to maintain a pH of 5.5 to 6.5 or the addition of 60 ppm sodium chromate as an inhibitor. [From Abstract]
Date:
July 9, 1951
Creator:
Olsen, Arnold R.
Object Type:
Report
System:
The UNT Digital Library
Dry Fluoride Process Status Report
Technical report outlining how uranium hexaflouride was prepared be the direct combination of irradiated uranium metal with elemental fluorine and subsequently decontaminated by adsorption, filtration, and sublimation on a laboratory scale. Report proposes a survey of other methods of preparing UF6 from uranium metal, a study of adsorption techniques for removing plutonium from UF6, and an investigation of fractional distillation for removing the volatile fission product fluorides from UF6. [From Abstract, Summary]
Date:
March 27, 1951
Creator:
Leuse, R. E.
Object Type:
Report
System:
The UNT Digital Library
Boiling Reactors: A Preliminary Investigation
Technical report detailing kinetic equations that have been developed for a boiling-type reactor and inherent reactor stability studies that have been made on the basis of these equations. Presents features of the proposed reactor, comparisons of circulating types, investigations of bubble-rise velocities, effects of transient conditions of vapor mass in steam chest, and bubble time delay functions yield favorable results. [From Abstract]
Date:
December 12, 1951
Creator:
Stein, J. M. & Kasten, P. R.
Object Type:
Report
System:
The UNT Digital Library
Thorium and Thorium Alloys Preliminary Corrosion Tests
Technical report investigating the corrosion resistance of thorium and thorium alloys containing from 2 to 6% chromium, columbinium (niobium), titanium, zirconium and titanium-zirconium in distilled water at 95ºC. The true effects of the various alloy additions could not be determined because of the more marked effect of cold working. [From Abstract]
Date:
December 19, 1951
Creator:
Olsen, Arnold R.
Object Type:
Report
System:
The UNT Digital Library
The Hydrolysis of Tributyl Phosphate Ad Its Effect on the Purex Process
From abstract: "The rate of hydrolysis of TBP and the effect of the hydrolysis products in the Purex Process have been studied. Hydrolytic conditions may be encountered in the process which would lead to formation of dibutyl phosphoric acid, causing significant losses of tetravalent plutonium in stripping. This situation may be easily alleviated by reducing and stripping the plutonium in the trivalent state."
Date:
December 13, 1951
Creator:
Reilly, V. J. & Lanham, W. B.
Object Type:
Report
System:
The UNT Digital Library
Enrichment of Uranium 236
From abstract: "Neutron-irradiated uranium was electromagnetically separated to provide enrichment of the isotope of mass 236. The final isotopic abundance of U 236 was determined to be 95% in 1800 milligrams of uranium. Useful by-products of the program were 22 grams of 25% U 236 and 1100 grams of 99.7% U 235. These enriched materials have been made available for use on Atomic Energy Commission projects. Possible application of this separation process to recovery of the fuel from the MTR reactor is described."
Date:
December 1951
Creator:
Harmatz, B.; McCurdy, H. C.; Case, F. N. & Livingston, R. S.
Object Type:
Report
System:
The UNT Digital Library
Enrichment of Uranium 236
From abstract: "Neutron-irradiated uranium was electromagnetically separated to provide enrichment of the isotope of mass 236. The final isotopic abundance of U 236 was determined to be 95% in 1800 milligrams of uranium. Useful by-products of the program were 22 grams of 25% U 236 and 1100 grams of 99.7% U 235. These enriched materials have been made available for use on Atomic Energy Commission projects. Possible application of this separation process to recovery of the fuel from the MTR reactor is described."
Date:
December 1951
Creator:
Harmatz, B.; McCurdy, H. C.; Case, F. N. & Livingston, R. S.
Object Type:
Report
System:
The UNT Digital Library
Physics Division Quarterly Progress Report for Period Ending March 20, 1951
Technical report covering classified work of the Critical Experiments Program in the Physics Division for the period December 20, 1950 to March 20, 1951. Report outlines investigations of properties of critical assemblies composed of uranium and various reflectors and moderators, preliminary measurements of the effective energy for fission in the assembly. [From Introduction and Summary]
Date:
July 2, 1951
Creator:
Bernstein, S.; Snell, A. H. & Wollan, E. O.
Object Type:
Report
System:
The UNT Digital Library
An Investigation of ThF4 - Fused Salt Solutions for Homogeneous Breeder Reactors
Technical report presenting a consideration of the characteristics of fused salt-ThF4 solutions suitable for use in homogeneous reactors. Presented in tandem with a brief survey of the literature pertaining to such solutions and a summary of the experimental work accomplished. [From Abstract]
Date:
June 19, 1951
Creator:
Blomeke, J. O. & Johnston, C. P.
Object Type:
Report
System:
The UNT Digital Library
An Experimental Determination of Fission Product Heating After Shutdown of the Low Intensity Training Reactor
Technical report containing the general arrangement of the Low Intensity Training Reactor and outcomes of experiments that have been performed in the reactor to measure the rate of fission product heat dissipation from the fuel pieces after loss of water. [From Summary, Introduction]
Date:
September 25, 1951
Creator:
Beall, S. E.
Object Type:
Report
System:
The UNT Digital Library
Chemistry Division Quarterly Progress Report: Period Ending September 30, 1951
This quarterly progress report discusses topics of research and experimentation at the Oak Ridge National Laboratory, including inorganic chemistry, nuclear chemistry, radio-organic chemistry, chemistry of separations processes, chemical physics, radiation chemistry, chemistry of the solid state, instrumentation, reactor chemistry.
Date:
September 30, 1951
Creator:
Lind, Samuel C., (Samuel Colville), 1879-1965; Boyd, G. E. & Bredig, M. A.
Object Type:
Report
System:
The UNT Digital Library
Heating in the Graphite Due to a Cadmium Control Rod
From introduction: "This paper employs a multigroup method similar to that of J. S. Story, AERE-TR-177 to calculate, for cylindrical geometry, that heat energy source density in graphite due to absorption and Compton scattering of those gammas produced by neutron capture in a water filled cadmium control rod."
Date:
September 29, 1951
Creator:
Newkirk, W. H.
Object Type:
Report
System:
The UNT Digital Library
Recovery of Plutonium From Slag and Crucible
Report evaluating different methods of preparing nitric acid solution and different methods of separating plutonium from this nitric acid solution of slag and crucible. Methods are explained and experimental data is given.
Date:
June 15, 1951
Creator:
Groot, C.; Hopkins, H. H. & Schulz, W. W.
Object Type:
Report
System:
The UNT Digital Library
Report on Production of Hafnium-Free Zirconium to Climax Molybdenum Company
Summary: A study has been made of possible processes for the production of hafnium-free zirconium of a grade suitable to meet AEC specifications.
Date:
December 29, 1951
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Annie Laurie Prospect, Santa Cruz County, Arizona
From introduction: The Annie Laurie 'cranium Prospect, in the Oro Blanco district of southern Arizona, is located in the southwest quarter of Sect. 3, T233, R=13. The nearest United States post office is Nogales, about 25 miles east, and the nearest settlement is Ruby, a nearly abandoned mining camp about 3 miles north. Access to the Ruby area is by gravel road from US highway 39 at Kinsley or Nogales. The Ruby quadrangle (1940) includes the area surrounding the prospect.
Date:
January 1951
Creator:
Wright, Robert J.
Object Type:
Report
System:
The UNT Digital Library
Geological Investigation of Mexican Cry Mesa, Lukachukai District, Arizona with Diamond Drilling Recommendations
Abstract: The Salt Wash member of the Jurassic Morrison formation of Mexican Cry Mesa, Lukachukai District, Arizona, was examined to determine size, grade, and distribution of contained carnotite deposits and the possibilities of developing reserves by exploratory drilling. Only three occurrences of carnotite-bearing sandstone were found in 17 miles of rim outcrop. Limited drilling is recommended in the vicinity of these exposures.
Date:
August 2, 1951
Creator:
Ellsworth, Philip C.
Object Type:
Report
System:
The UNT Digital Library
Uranium Deposits on Mesas I 1/2 and II 1/2, Lukachukai Mountains, Northeast Arizona
Abstract: Mesas 1 1/2 and II 1/2 were investigated in October 1951, to determine the extent and degree of uranium mineralization in the Salt Wash sandstone. Carnotite-vanoxite-type minerals are sufficiently concentrated to recommend 14,600 feet of drilling.
Date:
October 24, 1951
Creator:
Masters, John A. & Blum, Richard D.
Object Type:
Report
System:
The UNT Digital Library
Uraniferous Quartzite, Red Bluff Prospect, Gila County, Arizona
Abstract: Radioactive zones are present in the upper silty part of the pre-Cambrian Dripping Spring quartzite at the Red Bluff prospect, Gila County, Ariz. The prospect is in the SE 1/4 sec. 31, T. 5 N., R. 14 E., at the southern end of the Sierra Ancha area and 12 miles northeast of Roosevelt Dam. Stratigraphic control of the radioactive zones is indicated by the restriction of the zones to two layers, each about 20 feet thick.The zones are spatially associated in part with a diabase dike that occupies a fault, and in part with a thick diabase sill. The main uranium mineral disseminated through the rock in these zones has not been identified definitely, although minor quantities of secondary uranium minerals were observed. The results of scintillometer traverses and radiometric analyses indicate that the deposits probably contain an average of 0.026 percent uranium. Some black streaks and some fractures contain a higher percentage of uranium, but so far as is known the volume of such material is probably too small to affect the overall grade of the deposits.
Date:
January 1951
Creator:
Kaiser, E. P.
Object Type:
Report
System:
The UNT Digital Library
Geology and Mineralization of Hunt's Mesa, Monument Valley, Arizona, Navajo County with Recommendations for Exploration Drilling
Abstract: Hunt's Mesa was examined on June 2 and 3, 1951, by the writer assisted by R. C. Cutter. Two channels were located and studied. Outcrops of the channels are mineralized, the mineralization being of the copper-uranium variety. There are indications that an appreciable quantity of ore can be found by exploration drilling. A program of 25,000 feet of wagon drilling is recommended.
Date:
June 20, 1951
Creator:
Chester, John W.
Object Type:
Report
System:
The UNT Digital Library
Geology and Ore Deposits of Yazzie Mesa, Apache County, Arizona with Recommendations for Exploration Drilling
Abstract: Yazzie Mesa was examined in May 1951, by the writer, assisted by R. C. Cutter. The mesa shows one main channel deposit and three minor channels. The main channel appears to be a northern extension of a channel deposit being worked by the Vanadium Corporation of America at their Monument No. 2 mine. Two samples taken on the south outcrop of the main channel assayed 0.16% U308 over 4.5 feet and 0.80% U308 over 1 foot. The area is recommended for 10,000 feet of exploration drilling. It is not intended to recommend this footage as a separate contract unit as this report covers only a small part of an area in which drilling will be recommended in forthcoming reports.
Date:
June 19, 1951
Creator:
Chester, John W.
Object Type:
Report
System:
The UNT Digital Library
Results of Diamond Drilling Mesas 1, 2, 3, and 4, Lukachukai Mountains, Northeastern Arizona
From purpose and scope: Diamond drill exploration of the Lukachukai district was undertaken to find minable bodies of uranium ore and to determine whether sufficient reserves were present to warrant construction of a local mill. A minimum of 30,000 feet and a maximum of 50,000 feet of drilling were assigned to block out ore in the discovery area, Mesa I (pl. 1.). It was anticipated that some of the footage might be used to test Mesa II should the area become accessible. With access to Mesas II and IV subsequently provided by roads constructed by F. A. Sitton, Inc., and access to Mesa III furnished by a road constructed by the Atomic Energy Commission, the area available for drilling was eventually increased by some three and a half times. With no increase in allotted footage, the hole density was correspondingly decreased,
Date:
September 18, 1951
Creator:
Stafford, Howard S.
Object Type:
Report
System:
The UNT Digital Library
Geology of Uranium Deposits--a Condensed Version
From introduction: In an effort to stimulate the search for uranium deposits among professional geologists and mining engineers, the following pages present a brief summary of some of the pertinent facts and ideas concerning the geology of uranium deposits evolved by many individuals who have been actively engaged in uranium exploration. This work has been done by members of the U. S. Geological Survey, the U. S. Atomic Energy Commission, geological surveys of several other countries, mining companies, and several educational and research institutions.
Date:
May 1951
Creator:
Everhart, Donald L.
Object Type:
Report
System:
The UNT Digital Library