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Determination of slug temperatures for various power levels

Description: This study was undertaken to determine the maximum temperatures that may be expected in slugs under various operating power levels. Information of this nature is required to properly evaluate the effects on the slug of pile operation at power levels higher than those currently in use.
Date: January 5, 1949
Creator: Burda, E.J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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New Low Mass Isotopes of Emanation (Element 86)

Description: Among the spallation products obtained from the 350-Mev proton bombardment of Th{sup 232} they have identified two gaseous alpha-emitters which apparently do not decay into any presently known alpha-decay chains. The half-lives observed for the decay of the alpha-activities are 23 minutes and 2.1 hours. These half-lives may be principally determined by an unknown amount of orbital electron capture. At least one alpha-emitting daughter (about 4 hours half-life) has been observed to grow from a g… more
Date: September 5, 1949
Creator: Ghiorso, A.; Meinke, W. W. & Seaborg, G. T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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N-17, A Delayed Neutron Emitter

Description: The decay scheme of a 4.2 second neutron emitter has been investigated in detail. Chemical and physical evidence shows that it is N{sup 17}, which emits beta rays to a broad excited state of O{sup 17}, which then breaks up into a neutron plus O{sup 16}. The energy spectrum of the neutrons is determined by measuring the energies of the O{sup 16} recoils in a proportional counter. The neutrons have a most probable energy of 0.9 Mev, a 'half width' of less than .5 Mev, and an upper limit of about … more
Date: November 5, 1948
Creator: Alvarez, L. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Alpha-Decay in Isotopes of Atomic Number Less Than 83

Description: Some time ago we started work in an attempt to observe alpha-particle decay in isotopes of atomic number less than 83. In the first experiments, thin targets of gold leaf were bombarded with 190-Mev deuterons in the 184-inch cyclotron. Two alpha-decay periods were observed in these targets; one of 0.7 minutes half-life and another of 4.3 minutes half-life. The alpha-particle energies were 5.7 and 5.2 Mev, respectively. Chemical separations proved that the 4.3-minute period is due to a gold isot… more
Date: September 5, 1949
Creator: Thompson, S. G.; Ghiorso, A.; Radmussen, J. O. & Seaborg, G. T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

P Division monthly report, July 1949

Description: The progress report discusses activities of the P Division for the month of July, 1949. The B and F piles operated at 275 megawatts and the D pile at 305 megawatts throughout the month except for outages listed under Area Activities. A total of 57.5 tons of metal, at an average concentration of 363 megawatt days/ton (MWD/ton) was discharged from the piles during the month. This included 41.9 tons of Class V (alpha-rolled, triple-dipped, completely transformed) metal at an average concentration … more
Date: August 5, 1949
Creator: Lee, Edward P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Source of high activity levels recently observed from shipping containers and transfer cans

Description: Shipping cans containing product from plant runs completed in the latter half of April and in May showed, in general, definitely higher levels of radiation than had been observed previously. Likewise, containers for the transfer of the F-10-P solution from the 224 Bldg. to 231 Bldg. (during May) exhibited higher radiation levels than could be attributed to higher power levels and increased batch sizes. These higher radiation levels were indicative that some radioactive element (or elements) was… more
Date: July 5, 1945
Creator: Swartout, J.A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Redox Committee: Conference notes and recommendations, April 5, 1949

Description: The notes and recommendations contained in this report relate to the design and construction of the Redox Production Plant with its associated Tank Farm at Hanford. All current development work for the Redox Program was to be transferred to the Redox Production Plant. [The Redox plant used a reduction-oxidation process for fuel separation that allowed recovery of uranium as well as plutonium for the first time. It succeeded earlier plants (T and B) that used methods based on the bismuth phospha… more
Date: April 5, 1949
Creator: Greager, O. H.; MacCready, W. K. & Seckendorff, E. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Events of importance for week ending August 3, 1949

Description: The redox and pile operations are reported on. Construction in 100 (Pile), 200 (Separation), and 300 (Metal Fabrication) areas is described. General work in the Richland commercial areas and on the Southern Railroad connection is also described. Personnel information is disclosed.
Date: August 5, 1949
Creator: Schlemmer, F. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Sampling of Effluent and River Water

Description: This document contains information about the sampling program at Columbia River during May 5, 1944. Topics discussed include: securing representative samples; analysis of the samples looking at temperature, bacteriological content, dissolved oxygen, and physical tests; and the method and equipment used in the sampling procedure.
Date: May 5, 1944
Creator: Morris, E. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Hanford Engineer Works technical progress letter number 152: May 25 through May 31, 1947

Description: This report gives weekly progress in pile technology. An exposure of over 96 hours was made with the slug radiographing apparatus from May 22 to May 26. The three pieces subjected to the exposure included one of the special pieces designed for installation of a thermocouple. The thermocouple well in the special pieces showed up satisfactorily and for the first time it was possible to detect spots which could be due to small voids. Crushing and breaking strength measurements made on graphite pie… more
Date: June 5, 1947
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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100 Areas technical activities report -- Engineering, October, 1949

Description: This report covers work done by the Physical Chemistry Group and the Pile Engineering Groups. Subjects covered are as follows: corrosion laboratory testing details; pile borescopic inspections; slug deformation details; Van Stone flange corrosion details; corrosion rate at elevated temperature; added control ink facility; borescope equipment and repair; water recirculation cooling tests; pile expansion; carbon dioxide experiment; special graphite measurements; graphite core sample; vertical thi… more
Date: December 5, 1949
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Procedure for improving temperature distribution via rods and columns -- B Pile

Description: Since the development of relationships between rod changes and temperature shifts, the temperature distribution of the B Pile has been improved as much as possible by shifting the rods. Certain unbalances have been found which can only be removed by improvement of the poison pattern. At present the maximum imperfection in the B Pile is 5% diagonal quadrupole unbalance. An estimate of the poison pattern needed to correct these imperfections is given herein. This poison pattern has been calculate… more
Date: October 5, 1945
Creator: Menegus, R. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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