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Technical progress letter

Description: It was agreed at the February, 1951 meeting of the Atomic Energy Commission Technical Information Panel that, wherever practical, progress reports should periodically include a list of previous reports issued in the same series. Such a list would greatly facilitate servicing by installation document rooms since requests are frequently received for reports in a specific series. This report lists the Technical Progress Letters from 1944 to date, and is distributed to recipients of the Letters in accordance with the recommendations of the Panel. Because of its length it was not deemed practical to include it as a part of the report itself. lt is anticipated that it will serve as a reference list and permit reduction of personal files.
Date: October 9, 1951
Partner: UNT Libraries Government Documents Department

Hanford Works monthly report, April 1951

Description: This is a progress report of the production reactors on the Hanford Reservation for the month of April 1951. This report takes each division (e.g., manufacturing, medical, accounting, occupational safety, security, reactor operations, etc.) of the site and summarizes its accomplishments and employee relations for that month.
Date: May 21, 1951
Creator: Prout, G. R.
Partner: UNT Libraries Government Documents Department

Four years at Hanford

Description: Operation, rehabilitation, and expansion of Hanford Works was undertaken by GE from Sept. 1946 to the end of 1950. As a result of engineering progress, graphite reactors continue to be the country`s primary source of plutonium in production quantities; at the end of 1950, the plutonium production rate from the Hanford reactors was 299% of the 1946 rate with a 67% increase in reactor facilities. Improvements to existing plant facilities and processes resulted in savings of $53.3 M; in addition, it would have been necessary, in order to produce the amount of Pu delivered through 1950, to have constructed facilities costing $225.4 M if the following improvements had not been made: an irradiation-stable uranium slug; annealing of graphite; increased operating power level of the reactors; and improved separation methods. Tritium production, health/safety, and community management are mentioned.
Date: December 31, 1951
Partner: UNT Libraries Government Documents Department

Hanford Works monthly report, January 1951

Description: This is a progress report of the production reactors on the Hanford Reservation for the month of January 1951. This report takes each division (e.g. manufacturing, medical, accounting, occupational safety, security, reactor operations, etc.) of the site and summarizes its accomplishments and employee relations for that month.
Date: February 16, 1951
Creator: Prout, G. R.
Partner: UNT Libraries Government Documents Department

Hanford Works monthly report, July 1951

Description: This is a progress report of the production reactors on the Hanford Reservation for the month of July 1951. This report takes each division (e.g., manufacturing, medical, accounting, occupational safety, security, reactor operations, etc.) of the site and summarizes its accomplishments and employee relations for that month.
Date: August 24, 1951
Creator: Prout, G. R.
Partner: UNT Libraries Government Documents Department

Hanford Works monthly report, March 1951

Description: This is a progress report of the production reactors on the Hanford Reservation for the month of March 1951. This report takes each division (e.g., manufacturing, medical, accounting, occupational safety, security, reactor operations, etc.) of the site and summarizes its accomplishments and employee relations for that month.
Date: April 20, 1951
Creator: Prout, G. R.
Partner: UNT Libraries Government Documents Department

Hanford Works monthly report, November 1951

Description: This is a progress report of the production reactors on the Hanford Reservation for the month of November 1951. This report takes each division (e.g., manufacturing, medical, accounting, occupational safety, security, reactor operations, etc.) of the site and summarizes its accomplishments and employee relations for that month.
Date: December 21, 1951
Creator: Prout, G. R.
Partner: UNT Libraries Government Documents Department

Tritium Wastes

Description: This is a memorandum from the Hanford Operations Office about the possibility of tritium wastes escaping into the atmosphere. The waste which is disposed of in burial grounds eventually migrates to the Columbia River where it evaporates into the atmosphere. Also included in this memo is a statement of an error in the units of some data compiled for the monitoring of the tritium wastes. (MB)
Date: November 1, 1951
Partner: UNT Libraries Government Documents Department

Hanford Works Monthly Report: June 1951

Description: This is a progress report of the production on the Hanford Reservation for the month of June 1951. This report takes each division (e.g., manufacturing, medical, accounting, occupational safety, security, reactor operations, etc.) of the site and summarizes its accomplishments and employee relations for that month.
Date: July 20, 1951
Partner: UNT Libraries Government Documents Department

Hanford Works Monthly Report: May 1951

Description: This is a progress report of the production reactors on the Hanford Reservation for the month of May 1951. This report takes each division (e.g., manufacturing, medical, accounting, occupational safety, security, reactor operations, etc.) of the site and summarizes its accomplishments and employee relations for that month.
Date: June 21, 1951
Creator: Prout, G. R.
Partner: UNT Libraries Government Documents Department

Production Test 105-389-P graphite sample boring from process channels. Final report

Description: The study of radiation damage to the graphite moderator is largely dependent upon the availability of graphite samples from the moderator itself. Because of the varied temperature-flux history and complicated structure of the piles, it is impossible to study the problem from the laboratory standpoint alone. The samples of greatest interest are those taken from the sections of the moderator which have received the greatest damage. However, a comprehensive study requires samples from all sections of the graphite moderator. It is desirable that these samples be solid in order that physical and dimensional measurements of all types may be made. Solid samples enable thermal conductivity measurements and the gradients of damage across tube blocks to be measured. To provide such samples, it was necessary to design some device which would cut solid samples from any location in the pile through the process Channels. The graphite core borer was desigred specifically for this purpose. The objective of this Production Test was to test the operation of the core barer and evaluate the results of its performance.
Date: July 10, 1951
Creator: Cole, J. B.
Partner: UNT Libraries Government Documents Department

Process considerations additional product concentration facilities in 202-S

Description: This memorandum discusses investigations concerning the coupling step required to adapt a Redox IIBP to a 234-5 feed which have indicated that a single peroxide strike from a solution 50--60 g./1. in product and about 2 M in nitric acid is adequate. Additional work is planned to demonstrate both peroxide and Pu(IV) oxalate strikes under these conditions. The present Redox PR cage product contains 10 g./1. in product and over 500 g./1. in nitric acid, and probably requires tow peroxide strikes; in addition, the operating capacity of the PR cage may be inadequate to process the throughputs desired in the Redox plant. A two stage continuous concentration process for Redox IIBP is jointly suggested by Design and Development and Chemical Development personnel, and is described in this document. This process is believed to be simple and easily operable. Acid is removed from the product solution adequately for the single peroxide strike coupling procedure. Batch size appears to be easily controllable.
Date: October 29, 1951
Creator: Tomlinson, R. E.
Partner: UNT Libraries Government Documents Department

Hanford Works monthly report, October 1951

Description: This document presents a summary of work and progress at the Hanford Engineer Works for October 1951. The report is divided into sections by department. A plant wide general summary is included at the beginning of the report, after which the departmental summaries begin. The Manufacturing Department reports plant statistics, and summaries for the Metal Preparation, Reactor and Separation sections. The Engineering Department`s section summarizes work for the Technical Design, and Project Sections. Costs for the various departments are presented in the Financial Department`s summary. The Medical, Radiological Sciences, Utilities and General Services, Employee and Public Relations, and Community Real Estate and Services departments have sections presenting their monthly statistics, work, progress, and summaries.
Date: November 21, 1951
Partner: UNT Libraries Government Documents Department

Hanford works monthly report, September 1951

Description: This is a progress report of the production reactors on the Hanford Reservation for the month of September 1951. This report takes each division (e.g., manufacturing, medical, accounting, occupational safety, security, reactor operations, etc.) of the site and summarizes its accomplishments and employee relations for that month.
Date: October 19, 1951
Creator: Prout, G. R.
Partner: UNT Libraries Government Documents Department

Hanford Works monthly report, February 1951

Description: This is a progress report of the production on the Hanford Reservation for the month of February 1951. This report takes each division (e.g., manufacturing, medical, accounting, occupational safety, security, reactor operations, etc.) of the site and summarizes its accomplishments and employee relations for that month.
Date: March 20, 1951
Creator: Prout, G. R.
Partner: UNT Libraries Government Documents Department

Hanford Works monthly report, August 1951

Description: This is a progress report of the production reactors on the Hanford Reservation for the month of August 1951. This report takes each division (e.g., manufacturing, medical, accounting, occupational safety, security, reactor operations, etc.) of the site and summarizes its accomplishments and employee relations for that month.
Date: September 24, 1951
Partner: UNT Libraries Government Documents Department

Hanford Works monthly report, December 1950

Description: This is a progress report of the production reactors on the Hanford Reservation for the month of December 1950. This report takes each division (e.g., manufacturing, medical, accounting, occupational safety, security, reactor operations, etc.) of the site and summarizes its accomplishments and employee relations for that month.
Date: January 22, 1951
Creator: Prout, G. R.
Partner: UNT Libraries Government Documents Department

Particle size of particulate matter in the dissolver off-gas stream

Description: This report discusses particle size measurements with a modified cascade impactor of the particulate matter in the dissolver off-gases during the period of maximum gas evolution, and during the air sparge of the dissolver solution after the completion of the dissolving cycle which indicate that the mass-size median of the particles was less than 0.1 micron in both cases. The measurements were made, unfortunately, at a time when the efficiency of the silver reactor upstream to the sampling point was low enough to permit appreciable amounts of iodine through to the cascade impactor. The samples were therefore permitted to decay for thirty-five days before the relative amounts of radioactivity on the stages of the impactor and the follow- up filter paper were evaluated. The size of the particles obtained, 0.1 micron, should be considered primarily as an order of magnitude rather than an absolute value, because the cascade impactor (as well as any other impaction device) can not give an accurate value for the particle size in this size range.
Date: November 1, 1951
Creator: Weidenbaum, B.
Partner: UNT Libraries Government Documents Department

Acenaphthene solvents for use in Building 313 Frost Test operation

Description: Acenaphtheno is a low-melting organic compound, C{sub 10}H{sub 6}(CH{sub 2}){sub 2}, used as a temperature indicating coating for slugs tested in the Frost Test induction coil. In preparation for this test, slugs are coated by spraying a 12 to 24 per cent by weight solution of acenaphthene in a high vapor pressure solvent on the rotating slug. The solvent evaporate leaving a thin, adherent coating of acenaphthene. This process is completely described in reference 1. To be entirely satisfactory for this use, a solvent must satisfy four requirements. High vapor pressure -- rapid evaporation. Non-flammability. Low toxicity. Carbon tetrachloride, the solvent used at percent, is operationally satisfactory but undersirable because of its toxicity. The purpose of this test is to investigate the suitability of various solvents as substituted for carbon tetrachloride.
Date: June 26, 1951
Creator: Kratzer, W. K.
Partner: UNT Libraries Government Documents Department

UO{sub 3} Plant cold shakedown run plan: No. C-1

Description: This report presents the cold shakedown run for the UO{sub 3} plan. One complete batch conversion will be made in each of the eighteen Calcining Pots using unirradiated uranium food solution. The objectives of this series of conversions are as follows. A mechanical test of the conversion units; a shakedown of the unloading, pulverizing and material handling equipment; a functional test of the Nitro Acid Absorber system operating at approximately 5 to 20% of its design capacity; the determination of the optimum temperature and time cycle conditions for 60% UNH feed solution. These conditions may be based upon calcination of the initial charge of 60% UNH solution to form UO{sub 3}, in one pot; a confirmation of the calibration of instruments; and to provide operating experience and process know-how.
Date: November 13, 1951
Creator: Raab, G. J. & Oberg, G. C.
Partner: UNT Libraries Government Documents Department

Interim report No. 1 on Production Test 105-407-P -- Pile test of magnesium front dummies

Description: The inlet portions of pile process tubes, which originally contained a pattern of aluminum dummy slugs, have been reported subject to pitting corrosion since the removal of the slugs. This corrosion is more severe than that found in the other portions of the tubes. The insertion of magnesium dummy slugs has been recommended to arrest this corrosion. A pile test of the effect of magnesium dummies is in progress and preliminary results are reported. Current-voltage relationships between magnesium and aluminum have been found to be satisfactory. A study of previously reported data on front tube corrosion has been made. It is concluded that the overall corrosion of the tubes is low, but that pitting is occurring in the inlet portion. This pitting is not necessarily the result of removal of the front dummy pattern. Magnesium dummies, when tested, were found safe for the aluminum tubes, but no data were obtained as to their ability to protect the aluminum. The tubes are not considered to be in imminent danger of failure, and if a dummy pattern is inserted it will probably result in a small production loss.
Date: December 18, 1951
Creator: Lewis, M. & Goldsmith, S.
Partner: UNT Libraries Government Documents Department

100 Areas technical activities report, engineers - March 1951

Description: This is the monthly 100 areas technical activities report from the engineering division for the month of March 1951. It reports on engineering activities related directly to the different production reactors, and gives progress reports on various engineering projects which are in development by the engineering group.
Date: April 1, 1951
Partner: UNT Libraries Government Documents Department

Filter capacity tests

Description: Increases in production rates in the 100 Areas have caused a demand for additional amounts of cooling water for process use. Consequently, continual efforts have been made to push the existing filter plants well beyond designed capacity. The latest and most successful effort was made at the 100-B filter plant during the spring of 1951. Tests of the 100-B Area indicate that the 100 Area filters can be operated safety at 3,400 GPM per unit, or 13.3% beyond the designed capacity, during the period of most difficult water treatment (February-June). By extrapolation of the data to the most favorable water treatment periods (August--January), it is indicated that net water available for production use is approximately 5% above 3400 GPM. It is recommended that no additional filter plant capacity be installed in existing areas until anticipated water loads exceed 3,400 GPM per filter basin unit. It is further recommended that an investigation be made of the feasibility of changing water flows to the piles on a seasonal basis to take advantage of the fact that the season requiring the greatest theoretical quantity of water (because of high raw water temperatures) is also the season during which it is easiest to produce the greatest quantity of water.
Date: June 29, 1951
Creator: Conley, W. R.
Partner: UNT Libraries Government Documents Department