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RADON MEASUREMENTS IN WAREHOUSE AND BOX CARS CONTAINING HIGH GRADE ORE
None
Date:
February 11, 1946
Creator:
Anonsen, S.H.
Object Type:
Report
System:
The UNT Digital Library
100 Areas, February 5--February 11
This report gives the weekly status for the B, D, and F piles. Also given is the reactivity status at the end of the week for each pile. Process water control and pressure drop studies are discussed. Finally a brief discussion is given of the graphite expansion problem.
Date:
February 15, 1946
Creator:
Jordan, W. E.
Object Type:
Report
System:
The UNT Digital Library
Production Test No. 305-9-P, poisoning effectiveness and uniformity of myrnalloy slugs
The objective of this report is to determine the poisoning effectiveness and uniformity of a batch of approximately thirty myrnalloy slugs prior to charging into the B pile. The report is dated February 19, 1946. (JL)
Date:
February 19, 1946
Creator:
Wende, C. W. J.
Object Type:
Report
System:
The UNT Digital Library
300 Area, February 12 through February 18
Extrusion was run on one day, February 2, and a total of 271 billets (178 Type G, 12 type BT, and 81 red band) were processed. Two failures occurred among the red band billets; UM 6610 had begun to melt in the furnace and TX 3323 disintegrated on being extruded through the die. Samples of these billets are being checked chemically and metallurgically in an attempt to ascertain the cause for the hot-short characteristics of these billets. A sample cut from a rod which possessed zero strength (fell apart under no stress other than its own weight) at extrusion temperature was found to contain a large amount of microconstituent not ordinarily found in appreciable quantity on uranium sections. The distribution and appearance of the excess phase suggested at least partial liquation at the working temperature and it could, therefore, be responsible for the hot-short tendency.
Date:
February 22, 1946
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
CHEMICAL STABILITY OF HIGH TEMPERATURE POWER PILE
None
Date:
February 4, 1947
Creator:
Simon, S.L. & Fitzgerald, J.V.
Object Type:
Report
System:
The UNT Digital Library
Precipitation of Sodium Diuranate from Pitchblende Liquors
In the treatment of carnotite concentrates, sodium diuranate was prepared by acidifying tricarbonate liquors to eliminate carbon dioxide, and then precipitating the sodium salt by the addition of caustic. Direct precipitation of uranium by the addition of caustic to tricarbonate liquors was used when pitchblende ores were processed, because this procedure was more effective in giving a product with a low molybdenum content. Tests of this method in the laboratory and Pilot Plant indicated that low uranium losses (0.2 to 0.3%) would be encountered with typical liquors if 1.7 to 2.0 lbs of caustic were added for every pound of uranosic oxide in solution. Since losses as high as 3% were incurred in plant operations, further work was undertaken, in an effort to reduce the uranium concentration in the waste liquors.
Date:
February 4, 1947
Creator:
Brimm, E. O., Dr.
Object Type:
Report
System:
The UNT Digital Library
Preparation and use of Ammonium Diuranate in the Ether Extraction Process
In the ether extraction process, as originally developed, purified uranium dioxide was obtained by evaporation and calcination of the uranyl nitrate solution, followed by calcination of the resultant UO{sub 3}. It was suggested that an alternate procedure might be developed, involving the precipitation of uranium from the nitrate solution as ammonium diuranate. This material could then be calcined to uranosic acid, or reduced directly to the dioxide. It had already been established that ammonium diuranate could be precipitated completely from uranyl nitrate solutions. Experiments were carried out to determine whether a basic nitrate, analogous to a known sulfate salt, would be formed in the process. Both direct reduction of the diuranate to UO{sub 2} and calcination to uranosic acid were investigated to determine the physical characteristics and residual nitrogen of the resultant brown oxide.
Date:
February 4, 1947
Creator:
Brimm, E. O., Dr. & Mohr, P.
Object Type:
Report
System:
The UNT Digital Library
100 Areas Technical Activities Report - Physics, January 1947
Four routine shutdowns were experienced during the month. A measurable amount of the excess reactivity held in the control rods at the first of the month has been lost in the decrease in the average accumulated exposure of all the metal in the pile. The vertical safety rod guides have been measured for vertical alignment by the Maintenance Dept. A definite pattern has been found in the misalignment of the guides. The horizontal rod thimbles were borrowed on January 2, 1947 to see if any leaks were present. No leaks were observed but No. 2 Rod and No. 8 Rod had heavy gouge marks along the longitudinal axes. Several thimbles contained white corrosion. During the month two new bismuth tubes were established, 2871-D and 2877-D. This now gives the desired pattern of ten bismuth tubes.
Date:
February 12, 1947
Creator:
Montgomery, E. B.
Object Type:
Report
System:
The UNT Digital Library
Graphite expansion committee meeting of January 7, 1947
The fourteenth meeting of the Graphite Expansion Committee was held on February 7, 1947. Laboratory studies indicate that either the graphite thermocouples are reading low or that annealing effects at elevated temperatures within the pile are much greater than those encountered In the laboratory. Current difficulties with operation of some of the horizontal and vertical control rods seem to be attributable to graphite expansion, though no complete understanding of the phenomena has been obtained and one is unable to predict the time required for similar difficulties to develop in other rods. Changes in clearance between process tubes and pile graphite in the D Pile have been erratic in nature but have averaged much less than had been anticipated. The negligible decrease in clearance for central tubes indicates that the expanding cross-wise graphite layers are slipping with respect to the graphite layers which contain process tubes.
Date:
February 19, 1947
Creator:
Woods, W. K.
Object Type:
Report
System:
The UNT Digital Library
Hanford Engineer Works technical progress letter No. 137, February 9--15, [1947]
This technical progress letter contains reports from six Technical Department divisions at the Hanford Engineer Works for February 9, through February 15, 1947. The six reporting divisions are: 100 Areas, 300 Area, 200 Areas, Chemical Development, Laboratories, and Statistical Studies.
Date:
February 20, 1947
Creator:
Greninger, A. B.
Object Type:
Report
System:
The UNT Digital Library
Hanford Engineer Works technical progress letter No. 138, February 16--22, [1947]
This technical progress letter contains reports from six Technical Department divisions at the Hanford Engineer Works for February 16 through February 22, 1947. The six reporting divisions are: 100 Areas, 300 Area, 200 Areas, Chemical Development, Laboratories, and Statistical Studies. (JL)
Date:
February 27, 1947
Creator:
Greninger, A. B.
Object Type:
Report
System:
The UNT Digital Library
Impregnation of Graphite With Uranium Compounds for Use as Fuel Rod Materials
A process hns been developed for impregnating graphite with U/sub 3/O/ sub 8/ in connection with the proposed use of such material for fuel rod elements in the Daniels' High Temperature Pile. The process as developed consists of five steps: Fabrication of the graphite in the desired shape; Pretreatment of the graphite by boiling in water and then firing in helium at 800 deg C; Impregnating the graphite by first evacuating the pretreated material and then admitting an aqueous uranyl nitrate solution whose concentration is etermined by the final uranium content desired in the raphite; Drying the impregnated graphite slowly under quilibrium conditions; and Conversion of the uranyl itrate to U/sub 3/O/sub 8/ by firing in helium at 800 deg C. By this process fuel rod elements have been made which contain as much as 19% U/sub 3/O/sub 8/ distributed uniformly throughout the graphite. The considerations leading to the choice of this process are discussed in this report, together with the alternate procedures which were investigated. (auth)
Date:
February 1, 1948
Creator:
Kanter, M.A.
Object Type:
Report
System:
The UNT Digital Library
Monthly Progress Report No. 58 for February 1948
This is a monthly progress report on the following programs: (1) 184-inch Cyclotron; (2) 60-inch Cyclotron; (3) Synchrotron; (4) Linear Accelerator; (5) Experimental Physics; (6) Theoretical Physics; (7) Isotope Research; (8) Chemistry; (9) Medical Physics; and (10) Health Physics and Chemistry.
Date:
February 1, 1948
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
On Closed Shells in Nuclei
It has been suggested in the past that special numbers of neutrons or protons in the nucleus form a particularly stable configuration.{sup1} The complete evidence for this has never been summarized, nor is it generally recognized how convincing this evidence is. That 20 neutrons or protons (Ca{sup40}) form a closed shell is predicted by the Hartree model. A number of calculations support this fact.{sup2} These considerations will not be repeated here. In this paper, the experimental facts indicating a particular stability of shells of 50 and 82 protons and of 50, 82, and 126 neutrons will be listed.
Date:
February 1, 1948
Creator:
Mayer, M. G.
Object Type:
Report
System:
The UNT Digital Library
The Estimation of Heats of Formation
The procedure for estimation of heats of formation of compounds is illustrated by discussion of compounds of several of the elements of the actinide series. The procedure is particularly suited for lanthanide and actinide elements because of the similarity of the ionic radii and types of bonding.
Date:
February 2, 1948
Creator:
Brewer, Leo
Object Type:
Report
System:
The UNT Digital Library
Medical and Health Divisions Quarterly Report October 1947 To Jan. 1948
This quarterly report discusses the following topics: (1) the metabolic properties of plutonium and allied materials; (2) biological studies of radiation effects; (3) biological effects of radiation from external and internal zones; and (4) health chemistry.
Date:
February 4, 1948
Creator:
Authors, Various
Object Type:
Report
System:
The UNT Digital Library
Directive No. HEW-77
As work on the Columbia Basin irrigation project on the Columbia River is in the initial stages, the question of the effect of this project of the mineral content of the Columbia River has been raised. As an increase in dissolved mineral matter would seem to be likely, it was felt that quantitative estimate of the magnitude of this increase would be important, specifically with reference to the retaining of the demineralization plant at 100-D Area. Accordingly, a study has been made of the probable effect of the irrigation project on the chemical characteristics of the Columbia River.
Date:
February 6, 1948
Creator:
Lail, G. G. & Lauder, D. H.
Object Type:
Report
System:
The UNT Digital Library
DESIGN PROPOSAL FOR ONE BINOCULAR AND ONE MONOCULAR PERISCOPE FOR HANFORD WORKS
None
Date:
February 10, 1948
Creator:
Rede, G. R. & Barnes, N. F.
Object Type:
Report
System:
The UNT Digital Library
Research Progress Meeting of February 19, 1948
Much of the cloud chamber work has been directed toward obtaining the angular distribution of protons bombarded by deuterons from the 184-inch cyclotron. The observations have been restricted to those protons arising from neutrons of energy greater than 65 Mev. The cloud chamber used for this work is of 16-inch diruneter and employs a magnetic field of 14000 gauss. The chamber is filled with hydrogen at a pressure of 1/2 atmosphere; the vapor used is water and alchohol. Nearly 800 proton tracks were measured and calculated before analysis of the data indicated that the measuring procedure should be revised. They gave the angular and energy distributions shown in Figures 1 and 2. The discrepencies between the theoretical and experimental energy distribution of the neutrons shows that serious errors were being made. As a first check of possible sources of error, random parts of the data were remeasured. They indicated that errors in the measurements of the angles were being made that gave a mean deviation of about {+-} 2{sup o} in the beam angle and {+-} 4{sup o} in the dip angle. These errors were largest at large scatter angles. In addition, a more serious error occured in the measurements …
Date:
February 19, 1948
Creator:
Wakerling, R.K.
Object Type:
Report
System:
The UNT Digital Library
Degradation of Isotopic Lactate and Acetate
A scheme of glucose degradation has been validated by the use of intermediates of known isotopic composition. In this scheme: glucose {yields} lactic acid {yields} CO{sub 2} (C-3,4) + acetic acid {yields} CO{sub 2} (C-2,5) + acetone {yields} iodoform (C-1,6) + acetate (C-1,6; 2,5), it was found that (a) in the oxidation of lactic acid, approximately 4.7% of the acetic acid was oxidized to CO{sub 2}; and (b) under the conditions prescribed, BaCO{sub 3} from the degradation of Ba acetate contained approximately 1.5% of the activity of the methyl group.
Date:
February 24, 1948
Creator:
Aronoff, S.; Haas, V. A. & Fries, B. A.
Object Type:
Article
System:
The UNT Digital Library
CHEMICAL PROCEDURES FOR THE DETERMINATION OF THORIUM IN MINERALS AND ORES
None
Date:
February 1, 1949
Creator:
Williams, A. F.
Object Type:
Report
System:
The UNT Digital Library
Problems in Planning Facilities for Radiochemical Process Development
None
Date:
February 1, 1949
Creator:
Jealous, A C
Object Type:
Report
System:
The UNT Digital Library
The Thermodynamic Properties and Equilibria at High Temperatures of the Compounds of Plutoniun
None
Date:
February 1, 1949
Creator:
Brewer, Leo; Bromley, LeRoy; Gilles, Paul W. & Lofgren, Norman L.
Object Type:
Report
System:
The UNT Digital Library
[Office of Hanford Directed Operations events of importance for week ending February 2, 1949]
This report details events of importance reported by the Hanford Operation Office for the week ending February 2, 1949.
Date:
February 4, 1949
Creator:
Schlemmer, F. C.
Object Type:
Report
System:
The UNT Digital Library