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100 Areas, July 23 through July 29. For technical progress letter number 108

Description: The weekly progress for D and F piles is given. Status of the test to determine the cause of white deposits on the horizontal control rods of the F pile is given. Also discussed are studies of process water control and pressure drop, corrosion, and graphite expansion. Test results indicate that graphite expansion has not seriously limited discharge of process tubes.
Date: August 2, 1946
Creator: Jordan, W. E.
Partner: UNT Libraries Government Documents Department
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Blood changes in humans following total body irradiation

Description: A major problem encountered in the Manhattan Project was the protection of workers against damage resulting from acute or chronic exposure to external radiation. The problem of how to detect evidence of damage following exposure to total body radiation led to this study. These studies were conducted between January, 1942 and November, 1945. Three groups of persons were employed in this study. The first group of eight individuals harboring incurable neoplasms which was not extensive enough to in… more
Date: June 2, 1947
Creator: Cantril, S.T.; Jacobson, L.O.; Schwartz, S. & Nickson, J.J.
Partner: UNT Libraries Government Documents Department
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The Estimation of Heats of Formation

Description: 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
Partner: UNT Libraries Government Documents Department
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Events of importance for week ending November 30, 1949

Description: Waste disposal, pile operations and P-10 operations are reported. Construction in the 100 (Pile) areas, 200 (Separations) areas, and 400 (Technical Center) area is described. General work included Richland paving, the Southern Railroad connection, and the Richland levee. Personnel data and visitor information is also included.
Date: December 2, 1949
Creator: Schlemmer, F. C.
Partner: UNT Libraries Government Documents Department
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The evolution of iodine during metal dissolution

Description: During the dissolution in nitric acid of uranium metal which has been irradiated in a pile, radio-iodine (8.0 day) and radio-xenon (5.3 day) are liberated along with the oxides of nitrogen. Since in the plant these gases are discharged into the atmosphere, the presence of the activities (particularly radio-iodine because of its greater chemical reactivity) presents a physiological hazard. As a consequence, the cooling period (that is, the time between the discharge of the metal from the pile an… more
Date: August 2, 1945
Partner: UNT Libraries Government Documents Department
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Hanford Engineer Works technical progress letter No. 8, August 25--August 31, 1944

Description: This barely legible document describes the canning process, autoclave tests, slug weight distributions, and general information on progress in the 100 Area to include: Reactor physics, corrosion, instrument development, plant assistance, slug recovery, outgassing, sniffer tests, statistics, and analytical services.
Date: September 2, 1944
Creator: Bugbee, S. J.
Partner: UNT Libraries Government Documents Department
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A high-speed low-sensitivity calorimeter for high activity (Ad Interim Report)

Description: This document is a March 1949 Ad Interim Report on the development of a high-speed, low-sensitivity calorimeter at the Mound Laboratory. This calorimeter is a zero-compensating, thermocouple, twin type. The outside diameter of the aluminum tubing was machined for a slip fit into the glass test tube. Prior to assembling in the test tube, an aluminum plug was pressed in it midway from the ends. A groove was also milled on the outside down to the plug, and a copper-constantan thermocouple was secu… more
Date: March 2, 1949
Creator: Haring, M. M.
Partner: UNT Libraries Government Documents Department
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[Observation on machining speeds and feeds]

Description: This memorandum describes a trip on February 17th, 1944, in which the author stopped at the Baker Brothers Machine Company in Toledo to get the latest information on machining speeds and feeds and to determine the validity of their reported three pieces per hour per machine. The Baker Brothers reported that the three pieces per hour figure is an average given for determining delivery dates and allows for machining shapes other than a straight cylinder. They recommended a speed of 360 RPM for tu… more
Date: March 2, 1944
Partner: UNT Libraries Government Documents Department
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Production Test No. 305-9-P, poisoning effectiveness and uniformity of myrnalloy slugs. Final report

Description: This report discusses the poisoning effectiveness and uniformity of the first production batch of 33 myrnalloy slugs which was tested in the 305 Test Pile on February 26, 1946, prior to charging into the D Pile in accordance with Production Test No. 105-49-P, supplement A.
Date: April 2, 1946
Creator: Wende, C. W. J.
Partner: UNT Libraries Government Documents Department
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