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Experiments of the Effect of Atomic Electrons on the DecayConstant of Be7

Description: In an attempt to detect a possible influence of the atomic electrons on the radioactive decay constant of Be{sup 7} they have measured {lambda}{sub Be}-{lambda}{sub BeO} and found (-3.0 {+-} 1.8) 10{sup -4} {lambda}{sub Be}. They describe also a method to measure mean lives of radioactive substances in a time short compared with the mean life.
Date: July 1, 1948
Creator: Segre, Emilio & Wiegand, Clyde
Partner: UNT Libraries Government Documents Department
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Artificial Collateral Chains to the Thorium and ActiniumFamilies

Description: The authors have produced and identified two new series of alpha-particle emitting radioactive elements; one is a 'collateral' branch of the actinium (4n + 3) radioactive family and the other is collateral to the thorium (4n) family. The series are of considerable interest in that they are the first whose early members lie on the neutron deficient side of beta stability. They have been produced in high yield of irradiation of thorium with deuterons of energy about {sup 80}Mev in the Berkeley 18… more
Date: July 1, 1948
Creator: Ghiorso, A.; Meinke, W. W. & Seaborg, G. T.
Partner: UNT Libraries Government Documents Department
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Monthly Progress Report No. 60 for April 1948

Description: This report gives a short summary of each of the following programs: (1) 184-inch Cyclotron Program; (2) 60-inch Cyclotron Program; (3) Synchrotron Program; (4) Linear Accelerator Program; (5) Experimental Physics; (6) Theoretical Physics; (7) Chemistry; (8) Medical Physics; and (9) Health Physics and Chemistry.
Date: May 1, 1948
Partner: UNT Libraries Government Documents Department
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Monthly Progress Report No. 58 for February 1948

Description: This is a monthly progress report on the following programs: (1) 184-inch Cyclotron; (2) 60-inch Cyclotron; (3) Synchrotron; (4) Linear Accelerator; (5) Experimental Physics; (6) Theoretical Physics; (7) Isotope Research; (8) Chemistry; (9) Medical Physics; and (10) Health Physics and Chemistry.
Date: February 1, 1948
Partner: UNT Libraries Government Documents Department
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Path of Carbon in Photosynthesis III

Description: Although the overall reaction of photosynthesis can be specified with some degree of certainty (CO{sub 2} + H{sub 2}O + light {yields} sugars + possibly other reduced substances), the intermediates through which the carbon passes during the course of this reduction have, until now, been largely a matter of conjecture. The availability of isotopic carbon, that is, a method of labeling the carbon dioxide, provides the possibility of some very direct experiments designed to recognize these interme… more
Date: June 1, 1948
Creator: Benson, A. A. & Calvin, M.
Partner: UNT Libraries Government Documents Department
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Monthly Progress Report No. 59 for March 1948

Description: This monthly progress report covers the following programs: (1) 184-inch Cyclotron; (2) 60-inch Cyclotron; (3) Synchrotron; (4) Linear Accelerator; (5) Experimental Physics; (6) Theoretical Physics; (7) Chemistry; (8) Medical Physics; and (9) Health Physics and Chemistry.
Date: March 1, 1948
Partner: UNT Libraries Government Documents Department
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Nuclear Reactor Project Progress Report, January 1948

Description: This report is a progress report detailing operations and ongoing projects at the Brookhaven National Laboratory. The report describes new developments with buildings and progress regarding ongoing experiments. The report includes photographs showing progress in the construction of the reactor and other images and figures that accompany the descriptions of projects.
Date: January 1, 1948
Creator: Borst, L. B. & Fox, Marvin
Partner: UNT Libraries Government Documents Department
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Nuclear Reactor Progress Report

Description: Technical report describing the building of safety devices and features for the Oak Ridge reactor by the Reactor Safeguard Committee of the Atomic Energy Commission. Outlines the difficulties encountered in detailed design and construction operations for the facility.
Date: October 1, 1948
Creator: Brookhaven National Laboratory
Partner: UNT Libraries Government Documents Department
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Water leak, 100-F Area

Description: This document serves to record pertinent information regarding detection and repair of a water leak in Process Tube No. 3169-F in the F File and subsequent steps necessary to remove the water from the pile in order to return to normal level.
Date: December 1, 1948
Creator: Baker, J. T.
Partner: UNT Libraries Government Documents Department
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Events of importance for week ending May 26, 1948

Description: Operation of the 100F pile is reported on. Ongoing construction is described; detailing population and occupancy. Visitors and the Schenectady report are discussed. A copy of the June 4 letter from Carleton Shugg to Carrol L. Wilson pertaining to flooding of the Columbia and Yakima rivers is included.
Date: May 1, 1948
Creator: Shugg, C.
Partner: UNT Libraries Government Documents Department
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The pile primer

Description: No Description Available.
Date: June 1, 1948
Creator: Carlton, G. B.
Partner: UNT Libraries Government Documents Department
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Meteorological information

Description: This report documents the meteorological concerns for Hanford Atomic Production Operations (HAPO). There was a concern that the radionuclides that were being released in the atmosphere. The author suggests a hypothesis to keep the radionuclides from migrating in the atmosphere. This hypothesis describes the washout of radionuclides and the leaching into the soil as a method to contain the radionuclides at the production facility. The hypothesis takes into account wind velocity, stable and unsta… more
Date: April 1, 1948
Creator: Church, P. E.
Partner: UNT Libraries Government Documents Department
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The Metabolic Properties of the Fission Products and Actinide Elements

Description: An investigation of the assimilation, distribution, retention, an excretion of the fission products and actinide elements in the rat has been conducted at the Crocker Radiation Laboratory, University of California, Berkeley, California. These studies were initiated October 15, 1942, and are continuing at the present time. An extensive survey has been made of the metabolism of twenty-two different radio elements in the rat.
Date: March 1, 1948
Creator: Hamilton M.D., J.G.
Partner: UNT Libraries Government Documents Department
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Comparative Deposition of Zr95 in a Reticulo Endothelial Tumor to Normal Tissue in a Human Patient

Description: A test dose of Zr{sup 95} was given to a female patient which had a metastatic reticula endothelial tumor at the distal portion of the left femur. A comparison of the deposition of Zr{sup 95} showed greater uptake 24 hours after administration than any of the normal tissues investigated.
Date: March 1, 1948
Creator: Low-Beer, B. V.; Scott, K. G.; Hamilton, J. G. & Stone, R. S.
Partner: UNT Libraries Government Documents Department
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Neutron Deficient Isotopes of Tellurium and Antimony

Description: While investigating the relative yields for the many reactions resulting from the irradiation of antimony with 200-Mev deuterons in the Berkeley 184-inch cyclotron several previously unreported isotopes of tellurium and antimony were encountered. The tellurium fraction when followed on a thin mica window counter could be resolved into half-life periods of 2.5 hrs, 6.0 days and a small amount of a long-lived component. The 2.5 hour period has not been further characterized with respect to mass n… more
Date: January 1, 1948
Creator: Lindner, M. & Perlman, I.
Partner: UNT Libraries Government Documents Department
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THE RELATION OF BACKSCATTERING TO SELF-ABSORPTION

Description: The effects of backscattering upon self-absorption correction curves are demonstrated. Data are given for the backscattering powers of several substances for the beta radiations from C{sup 14}, and for se1f-absorption of samples of barium carbonate and wax, containing C{sup 14}, mounted on aluminum.
Date: January 1, 1948
Creator: Yankwich, Peter E. & Weigl, John.
Partner: UNT Libraries Government Documents Department
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Summary of the Research Progress Meeting April 1, 1948

Description: This summary of the research progress meeting on April 1, 1948 discusses the following topics: (1) Meson fission counter; (2) Delayed neutron periods; and (3) Products of bombardment of copper with high energy deuterons and helium ions.
Date: April 1, 1948
Creator: Folden, Margaret Foss
Partner: UNT Libraries Government Documents Department
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Products of High-Energy Deuteron and Helium Ion Bombardments of Copper

Description: The identity and relative yields of about twenty of the radioisotopes produced by the bombardment of natural copper with 190 Mev deuterons and 380 Mev helium ions have been determined. Two previously unreported isotopes were detected: Zn{sup 62}, decaying by orbital electron capture with a 9.5-hour half-life, and Fe{sup 52}, decaying by positron emission with a 7.8-hour half-life.
Date: March 1, 1948
Creator: Miller, D. R.; Thompson, R. C. & Cunningham, B. B.
Partner: UNT Libraries Government Documents Department
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