[Observation on machining speeds and feeds] (open access)

[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
Hanford Engineer Works technical progress letter No. 8, August 25--August 31, 1944 (open access)

Hanford Engineer Works technical progress letter No. 8, August 25--August 31, 1944

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.
Object Type: Report
System: The UNT Digital Library
Technical report for the period August 1, 1944 to September 30, 1944 (open access)

Technical report for the period August 1, 1944 to September 30, 1944

None
Date: October 2, 1944
Creator: Willson, K. S.
Object Type: Report
System: The UNT Digital Library
[Hanford 100 Area Technical Department monthly activity report], February 1945 (open access)

[Hanford 100 Area Technical Department monthly activity report], February 1945

This document details the activities of the Hanford 100 Area for the month of February 1945.
Date: March 2, 1945
Creator: Worthington, H.
Object Type: Report
System: The UNT Digital Library
Minutes of 200 Area conference on canyon and concentration Bldg. (221--224) problems on February 15, 1945 (open access)

Minutes of 200 Area conference on canyon and concentration Bldg. (221--224) problems on February 15, 1945

None
Date: March 2, 1945
Creator: Squires, L.
Object Type: Report
System: The UNT Digital Library
The evolution of iodine during metal dissolution (open access)

The evolution of iodine during metal dissolution

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 and the dissolution of the metal in nitric acid for the extraction of the product) should be sufficiently long so that the activities will have decreased through decay to the point where their concentrations in the atmosphere will not exceed 2.5 {times} 10{sup {minus}13} curies/cc* and 5 {times} 10{sup {minus}11} curies/cc* for radio-iodine and radio-xenon, respectively. A study was made of the existing information concerning the liberation of iodine and xenon during the dissolution of the metal and the information was summarized in a memorandum. At that time it was apparent that radio-iodine would present the greater hazard, and that very little was known about the factors governing the liberation of iodine during the metal dissolution. For this reason, an investigation of …
Date: August 2, 1945
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Production Test No. 305-9-P, poisoning effectiveness and uniformity of myrnalloy slugs. Final report (open access)

Production Test No. 305-9-P, poisoning effectiveness and uniformity of myrnalloy slugs. Final report

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.
Object Type: Report
System: The UNT Digital Library
100 Areas, July 23 through July 29. For technical progress letter number 108 (open access)

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

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.
Object Type: Report
System: The UNT Digital Library
Blood changes in humans following total body irradiation (open access)

Blood changes in humans following total body irradiation

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 influence general health, these patients were treated with 400 KV x-radiation while sitting in a wooden chair, doses were 27, 60, and 120r. Three persons having generalized illnesses chronic in nature were given total body radiation using 200 KV X-rays in multiple exposures totaling 100, 300, and 500r. A third group of normal volunteers from personnel of the Metallurgical Laboratory were treated with 200 KV x-rays in three divided doses totaling 21 r. Changes in peripheral blood in the fourteen individuals is reported. In group 1 the most persistent abnormality noted was a diminution in the number of lymphocytes after completion of the treatment. In group 2 a depression in the lymphocytes was also the most marked single change. In group 3 no …
Date: June 2, 1947
Creator: Cantril, S.T.; Jacobson, L.O.; Schwartz, S. & Nickson, J.J.
Object Type: Report
System: The UNT Digital Library
The Estimation of Heats of Formation (open access)

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
Power Plants Meeting with Rand and North American Aviation (open access)

Power Plants Meeting with Rand and North American Aviation

None
Date: July 2, 1948
Creator: Gruber, A. R.
Object Type: Report
System: The UNT Digital Library
Estimation of Uranium Requirement (open access)

Estimation of Uranium Requirement

None
Date: September 2, 1948
Creator: Goertzel, Gerald
Object Type: Report
System: The UNT Digital Library
Tolerances and Shielding Requirements (open access)

Tolerances and Shielding Requirements

None
Date: September 2, 1948
Creator: Nordheim, L. W.
Object Type: Report
System: The UNT Digital Library
A high-speed low-sensitivity calorimeter for high activity (Ad Interim Report) (open access)

A high-speed low-sensitivity calorimeter for high activity (Ad Interim Report)

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 secured in the groove after assembly. A single layer of aluminum foil was used to reduce radiation effects, and stray air currents were excluded with a cotton plug. The two arms of the calorimeter were placed in a three-liter beaker filled with water. The constantan leads of the two thermocouples were soldered together to make them compensating. The copper leads were connected to a L & N potentiometer, and a L & N galvanometer was also used. The potentiometer-galvanometer circuit was so connected that before each reading of the EMF of the thermocouples, the thermal EMF in the circuit could be accounted for. The galvanometer was then mounted on a heavy brass plate. The data show that when …
Date: March 2, 1949
Creator: Haring, M. M.
Object Type: Report
System: The UNT Digital Library
Events of importance for week ending November 30, 1949 (open access)

Events of importance for week ending November 30, 1949

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.
Object Type: Report
System: The UNT Digital Library
Radioactive contamination in the environs of the Hanford Works for the period October, November, December 1949 (open access)

Radioactive contamination in the environs of the Hanford Works for the period October, November, December 1949

This report summarizes the measurements made for radioactive contamination in the environs of the Hanford Works. The principal sources of the radioactivity originating as a result of operations at Hanford which affect the environment in this area are the two waste stacks in the separations area and the cooling water from the four pile areas. Measurements are also made on samples taken from the Hanford waste systems which are primarily confined within the project proper. Although monthly summaries of these data are reported in Health Instrument Divisions Environs reports, a somewhat more detailed discussion of these data is covered in the quarterly report. In this manner, a better evaluation of possible trends can be detected as a result of the increased number of measurements made available by combining the data for a three month period. The following areas are discussed: meteorology, radioactive contamination of vegetation, airborne contamination and air radiation levels, radioactive contamination in Hanford wastes, radioactive contamination in the Columbia and Yakima rivers; beta activity in rain and snow, and radioactive contamination in drinking water and test wells.
Date: March 2, 1950
Creator: Paas, H.J. & Singlevich, W.
Object Type: Report
System: The UNT Digital Library
Project C-361 engineers` flow sketch and process description, metal conversion facilities for comment issue (open access)

Project C-361 engineers` flow sketch and process description, metal conversion facilities for comment issue

The Metal Conversion Process described herein is designed to handle the combined output of decontaminated uranium from both the Redox and T.B.P. processes. Thus the design rate is 13-1/8 short tons per day. The bulk of the equipment is to be installed in the presently unused 224-U Building. The feed storage tanks, the gas absorber and gas cooler will be outside but adjacent to this building. The process has been divided into two steps: acid recovery and uranyl nitrate concentration; and uranyl nitrate conversion. The major items of equipment and flows thru the plant are shown on Engineers` Flow Sketches, numbered SK-2-50005, and Sk-2-50006.
Date: May 2, 1950
Creator: Frame, J. M. & Bragg, C. G.
Object Type: Report
System: The UNT Digital Library
Report of initial urinalyses on Bio-Assay personnel for the evaluation of benzol exposures (open access)

Report of initial urinalyses on Bio-Assay personnel for the evaluation of benzol exposures

In November, 1949, an industrial hygiene study was made of the operations conducted in the Bio-Assay Laboratory, 706 Building, 700 Area. This study was conducted by W.E. Gill and reported in HW-15654. One of the potential health hazards investigated was the use of benzol in laboratory procedures. An evaluation of this problem where the solvent was employed for cleaning glassware indicated that the solvent vapor was present in the workers` breathing zone in concentrations occasionally as high as 170 ppM. Five samples collected at this washing operation showed an average concentration of over 100 ppM; all samples being over the maximum allowable concentration (MAC) of 35 ppM. As a result of the findings of this study several recommendations were made, one of which was the advisability of instituting a program for urine sulfate determinations for the laboratory personnel exposed to benzol. It was felt that this test would demonstrate more precisely than air sampling the actual inhalation and absorption of solvent vapors experienced by the operators and exemplifying such factors as variations in individual respiratory rates and care in the use of solvent during washing.
Date: August 2, 1950
Creator: Adley, F. E.
Object Type: Report
System: The UNT Digital Library
Filters in P-10 production hoods (open access)

Filters in P-10 production hoods

This paper addresses the reported problem of insufficient air flow through the Fiberglas filters for the air inlets in P-10 production hoods. Since it appears that the replacement of the contemplated filters with either louvers or grilles will not impose any forseen difficulties and will definitely assist in the ventilation design, this substitution has been accepted. Air flow through the grilles or louvers is to be designed to attain a minimum lineal velocity of 200 fpm through the openings.
Date: November 2, 1950
Creator: Adley, F. E.
Object Type: Report
System: The UNT Digital Library
100 Areas engineers technical activities report, December 1950 (open access)

100 Areas engineers technical activities report, December 1950

Plant Assistance Group summaries are given for the B, D, F, H, and DR piles. The Engineering Development Group reports on: ball 3-X program, special field instruments, pile flux density measurements, magnesium inlet dummies, assistance to pile physics group, water survey program, boiling studies, slug temperature measurements, and the job status report for engineering development.
Date: January 2, 1951
Creator: unknown
Object Type: Report
System: The UNT Digital Library
MCW MALLINCKRODT SF ACCOUNTABILITY PROGRAM. Progress Report (open access)

MCW MALLINCKRODT SF ACCOUNTABILITY PROGRAM. Progress Report

Accounting progress, analytical and theoretical development, and production aspects of the SF materials accounting program at Mallinckrodt Chemical Works are briefly reviewed. (L. T.W.)
Date: January 2, 1951
Creator: Walden, C.H.
Object Type: Report
System: The UNT Digital Library
100 Areas technical activities report Engineers, January 1951 (open access)

100 Areas technical activities report Engineers, January 1951

Monthly reports are given for the B, D, DR, F and H piles. And the Engineering Development Group reports on the: Ball 3-X program, thermocouple slug irradiation and related studies, process water study, metallurgical and corrosion studies, analytical research, heat transfer and temperature effect experiment, assistance to pile physics group, miscellaneous development projects, and a job status report from Engineering Development.
Date: February 2, 1951
Creator: unknown
Object Type: Report
System: The UNT Digital Library
The Solubility of Tributyl Phosphate in Aqueous Solutions (open access)

The Solubility of Tributyl Phosphate in Aqueous Solutions

None
Date: April 2, 1951
Creator: Burger, L. L. & Forsman, R .C.
Object Type: Report
System: The UNT Digital Library
Analytical results on leachings from Nutsche Filters (open access)

Analytical results on leachings from Nutsche Filters

This report describes results of an investigation to determine whether plutonium nitrates and lanthanum compounds were being entrained on the filter aid and filter block of the Nutsche Filters in Cell 2 of Bldg. 231. Leach samples were analyzed for La, Pu, phosphate, fluoride, Pu{sup 240}, and Am. From the data the authors concluded that the holdup on the Nutsche Filter is due to insoluble plutonium compounds either filtered from solution, or more likely, formed on the filter. These compounds would have a relatively low solubility in 25% nitric acid and would dissolve slowly, thus permitting a gradual buildup of material on the filter which was not detected until leaching with 60% nitric acid was instituted.
Date: July 2, 1951
Creator: Barton, G.B.
Object Type: Report
System: The UNT Digital Library