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The toxicity of X material

Description: This report addresses toxicity (largely chemical) of Manhattan Project materials from the point of worker protection. Known chemical toxicities of X material (uranium), nitrous fumes, fluorine, vanadium, magnesium, and lime are described followed by safe exposure levels, symptoms of exposure, and treatment recommendations. The report closes with an overview of general policy in a question and answer format.
Date: December 1943
Creator: Ferry, J. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Project 9536, metal turnings - fire hazard

Description: The turnings have proved to be highly inflammable and subject to spontaneous ignition. Several experiments have been conducted at Herring-Hall-Marvin Safe Company, Hamilton, Ohio, and Baker Brothers, Inc., Toledo, Ohio, and in addition there have been a number of accidental fires, of which at least three were spontaneous. Fires of quantities ranging from several pounds to several hundred pounds have been experienced and a number of extinguishers have been tried. Records of this work are availab… more
Date: August 27, 1943
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Production of Uranium Metal by Metal Hydrides Incorporated

Description: Metal Hydrides Incorporated was a pioneer in the production of uranium metal on a commercial scale and supplied it to all the laboratories interested in the original research, before other methods for its production were developed. Metal Hydrides Inc. supplied the major part of the metal for the construction of the first experimental pile which, on December 2, 1942, demonstrated the feasibility of the self-sustaining chain reaction and the release of atomic energy.
Date: January 1, 1943
Creator: Alexander, P. P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Production of Uranium Metal

Description: Experiments were carried out for the purpose of increasing production, efficiency, and purity of uranium metal. The electrolytic method as described by Driggs and Lilliendahl for the preparation of uranium metal was followed with but little deviation. The yield of metal at the very best was only 50%. The metal powder produced, at times, was very pyrophoric. Methods were found whereby the metal, at least in part, can be made from the oxides with an average yield of about 90%. The small amounts o… more
Date: February 17, 1943
Creator: Nagy, R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Production of (Uranium) Tetrafluoride

Description: Production of tetrafluoride for the month of April was 49,400. New equipment installed late in March operated smoothly and the production was slightly over the rated capacity of the plant. Nickel ends were welded on to the steel reactor tubes to prevent corrosion at the cover joint and possible contamination of the product with iron. The nickel ends will also save considerable repair work on the tube ends. The magnesium trays for some of the reactors are beginning to crack at the sides from fre… more
Date: May 13, 1943
Creator: Long, K. E. & Swinehart, C. F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Fission Spectrum

Description: Measurements of the spectrum of the fission neutrons of 25 are described, in which the energy of the neutrons is determined from the ionization produced by individual hydrogen recoils. The slow neutrons producing fission are obtained by slowing down the fast neutrons from the Be-D reaction of the Stanford cyclotron. In order to distinguish between fission neutrons and the remaining fast cyclotron neutrons both the cyclotron current and the pusle amplifier are modulated. A hollow neutron contain… more
Date: August 18, 1943
Creator: Bloch, F. & Staub, H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Brown Oxide by-Product Recovery. Part I

Description: The objective of this report is to investigate the feasibility of obtaining uranium from the carnotite sludge in such a form as o permit its use in the brown oxide purification process.
Date: July 1, 1943
Creator: Copenhafer, D. & Oppold, W. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Investigation of the Photochemical Method for Uranium Isotope Separation

Description: To find a process for successful photochemical separation of isotopes several conditions have to be fulfilled. First, the different isotopes have to show some differences in the spectrum. Secondly, and equally important, this difference must be capable of being exploited in a photochemical process. Parts A and B outline the physical and chemical conditions, and the extent to which one might expect to find them fulfilled. Part C deals with the applicability of the process.
Date: July 10, 1943
Creator: Urey, H.C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Experimental Physics Division of the Los Alamos Project. Progress report No. 4

Description: Included in this semi-monthly report written in 1943 are progress with neutron beams, neutron absorption in enriched materials, equipment operation and maintenance reports of the cyclotron neutron source facility, and instrumentation maintenance activities of individuals in the cyclotron group. (GHT)
Date: September 1, 1943
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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