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319,268 Matching Results
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Metal Hydrides Final Report
None
Date:
July 26, 1943
Creator:
Alexander, P. P.
Object Type:
Report
System:
The UNT Digital Library
The Electrolytic Reduction-pH Control Method of Separation of U From Contaminants
None
Date:
July 28, 1943
Creator:
Wagner, E. L.
Object Type:
Report
System:
The UNT Digital Library
H.E.W. - 300 Area - Metal turnings - Fire hazard
This memorandum discusses means to extinguish magnesium fires in metal turnings at the Hanford Engineer Works 300 Area. The storage of metal turnings in 55 gallon drums presented a fire hazard, for which an effective means for extinguishing the fire had not been presented. This memorandum is dated July 1943. (JL)
Date:
July 31, 1943
Creator:
Huey, W. R.
Object Type:
Report
System:
The UNT Digital Library
Project 9536 - HEW - 300 Area: Metals turnings fire hazard
This report discusses the use of coal tar to extinguish potential magnesium fires in stored metal turnings at the Hanford Engineer Works. The report is dated August 11, 1943. (JL)
Date:
August 11, 1943
Creator:
Huey, W. R.
Object Type:
Report
System:
The UNT Digital Library
Fission Spectrum
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 container, in which slow neutrons have a lifetime of about 2 milliseconds, avoids the use of large distances. This method results in much higher intensities than the usual modulation arrangement. The results show a continuous distribution of neutrons with a rather wide maximum at about 0.8 MV falling off to half of its maximum value at 2.0 MV. The total number of netrons is determined by comparison with the number of fission fragments. The result seems to indicate that only about 30% of the neutrons have energies below .8 MV. Various tests are described which were performed in order to rule out modification of the spectrum by inelastic scattering.
Date:
August 18, 1943
Creator:
Bloch, F. & Staub, H.
Object Type:
Report
System:
The UNT Digital Library
Project 9536, metal turnings - fire hazard
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 available in our files. While the work to date does not constitute an exhaustive survey of the problem, we believe that it is now safe to outline precautionary and protective measures.
Date:
August 27, 1943
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Experimental Physics Division of the Los Alamos Project. Progress report No. 4
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
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Project 9336: Hanford-retention basin and effluent dilution
This report discusses effluent dilution of a retention basin at the Hanford Works in 1943. (JL)
Date:
September 1, 1943
Creator:
Worthington, H.
Object Type:
Report
System:
The UNT Digital Library
Water Analysis
Data acquired from sampling the Columbia River water September 1, 1943, is presented. The waster was analyzed for turbidity, ph value, chemical composition, and suspended matter.
Date:
September 1, 1943
Creator:
Kidder, C. P.
Object Type:
Report
System:
The UNT Digital Library
Weekly report CMX, Building 145
None
Date:
September 6, 1943
Creator:
Kidder, C. P. & Hunt, F. L.
Object Type:
Report
System:
The UNT Digital Library
Brown Oxide by-product Recovery. Part V
None
Date:
October 28, 1943
Creator:
Barnes, J. W.; Copenhafer, D. R.; Furnas, T. C.; Opie, J. V. & Reid, G. C.
Object Type:
Report
System:
The UNT Digital Library
The toxicity of X material
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.
Object Type:
Report
System:
The UNT Digital Library
Hanford Engineer Works Project 9536: C.M.X., Bldg. 145 weekly report, November 28, 1943--December 4, 1943
This report details activities of Hanford Engineer Works on Project 9536 during the week ending December, 1943. Tests are described which were run to determine means of eliminating the film which has been forming on tubes and slugs and causing excessive pressure drops.
Date:
December 9, 1943
Creator:
Kidder, C. P. & Hunt, F. L.
Object Type:
Report
System:
The UNT Digital Library
Tolerance concentration of radioactive gases in air
The effects of ionizing radiation on the lung, specifically the bronchial tubes, were discussed relative to the incidence of lung cancer in radium miners. The energy transferred to the epithelium by inhaled radon was calculated, and the steps in the process leading to the initiation of cancer were described. (ACR)
Date:
January 1, 1944
Creator:
Failla, G.
Object Type:
Report
System:
The UNT Digital Library
Turbidity Flocculation in Columbia River Water
This document contains data about the Columbia River water acquired January 9, 1944. The discussion includes: laboratory tests for turbidity and flocculation with aluminum.
Date:
January 9, 1944
Creator:
Frank, R. D. & Conley, W. R.
Object Type:
Report
System:
The UNT Digital Library
PROGRESS REPORT ON METALLURGY OF TUBALLOY TO UNIVERSITY OF CHICAGO
None
Date:
February 10, 1944
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Project 9536 HEW Building 105: Conference on welding design and technique
On February 4 at a conference in T.C. Gary`s office attended by Messrs. Wood, Gary, H.T. Daniels, Burns and C.R. Johnson, the design of the strap plates on the front and rear shields of the pile was discussed from the standpoint of welding technique in the field. Discussion of the design centered about the plug welding of the plates to the Laminated blocks and the ability of the field to perform this work properly. It was decided that welding specialists should be consulted prior to the beginning of the actual field erection in order that the best technique could be employed to guarantee good workmanship. It was agreed that a conference with such specialists should embrace both the features of the design as well as the practical phases of welding itself. This report provides details of this conference.
Date:
February 15, 1944
Creator:
Daniels, H.T.
Object Type:
Report
System:
The UNT Digital Library
Concentration of C-2 Slag
The bomb reaction slag produced at the ElectroMetallurgical X metal plant is at present divided into rich C-1 slag and lean C-2 slag by merely screening through a 4 mesh wire screen, the "on 4 mesh" material becomes the C-1 slag and the "thru 4 mesh" material becomes the C-2 slag. In the experiments covered by this report it was found that the concentration of the lean C-2 slag could be facilitated by the use of a 20 mesh screen for the slang separation in place of the 4 mesh screen, as the 20 mesh screen removed troublesome, small, hard lumps which passed the 4 mesh screen. Furthermore, it was found that the additional small lumps removed by the 20 mesh screen were just as rich in X metal as the larger lumps which make up the bulk of C-1 slag.
Date:
February 17, 1944
Creator:
Thomas, W.G.
Object Type:
Report
System:
The UNT Digital Library
Isolation of pure U-234 and determination of its spontaneous fission rate
None
Date:
February 18, 1944
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Solid residue
This document is a letter written February 24, 1944, concerning solids found when evaporating water from the Columbia River.
Date:
February 24, 1944
Creator:
Greenewalt, C. H.
Object Type:
Report
System:
The UNT Digital Library
Thermopiles for pile monitoring
None
Date:
February 25, 1944
Creator:
West, J.
Object Type:
Report
System:
The UNT Digital Library
BRIEF REPORT OF TYPE II CENTRIFUGE OPERATION
Results of type II UF/sub 6/ centrifuge operation are presented. Data from this type operation in a single unit are useful in predicting the operation of a number of centrifuges in cascade. (J.R.D.)
Date:
February 28, 1944
Creator:
Beams, J.W.
Object Type:
Report
System:
The UNT Digital Library
[Observation on machining speeds and feeds]
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 turning with a .010 feed.
Date:
March 2, 1944
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
A summary of the fission product metabolism studies up to March 1944
The metabolic properties of the carrier free long lived fission products in the adult rat have been investigated at different intervals ranging from one to sixty-eight days following administration of the radioactive material. The radio elements studied include the most important long lived fission products, namely, Sr, Y, Zr, Cb, Ra, I, Xe, Cs, Ba, La, Ce, Pr, Np, and the unseparated uranium free fission mixture. The routes of administration included intraperitoneal, intramuscular, oral and intrapulmonary. The tissues assayed for the distribution of the administered radio elements included heart, liver, kidney, testes, spleen, muscle, skin, stomach, small intestine, large intestine, bone, blood, lungs, brain, fat, adrenals, lymph nodes. Urine and feces were collected separately at daily intervals for assay. Data acquired is provided in tabular form. For the fission products which were poorly absorbed from the site of both intramuscular arid intraperitoneal injection (namely, Y, Zr, Cb, Ru, La, Ce, Pr, Np, and the uranium free fission mixture) only the intramuscular data are given here and it is expressed in terms of the distribution of the fraction absorbed from the site of injection. For the radio elements which are completely absorbed following intraperitoneal and intramuscular injection or are absorbed in …
Date:
March 30, 1944
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library