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The effect of pile gas on tube block temperatures in {open_quotes}G{close_quotes} pile

Description: Helium, carbon dioxide, and helium-carbon dioxide mixtures are being considered for use as the pile gas in `G` pile. Coring the graphite tube block to provide a gas gap between the process tube centered in the graphite and the graphite tube block has been suggested as a means of maintaining high graphite temperatures in the tube blocks. It has been established that graphite damage during irradiation in minimized at high temperatures.
Date: April 7, 1950
Creator: Sega, C. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Evidence for the Production of Neutral Mesons by Photons

Description: Evidence in favor of the existence of a gamma unstable neutral meson; report on the detection of the coincidences between the two gamma rays produced by the bombardment of various nuclei in the x-ray beam of the Berkeley synchrotron.
Date: April 1, 1950
Creator: Steinberger, J.; Panofsky, W.K.H. & Steller, J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Isotopes of Americium

Description: Three new americium activities (Am{sup 238}?, Am{sup 243}, and Am{sup 244?}, the latter two formed by n,{gamma} reactions) are described and some additional information is given on previously reported americium isotopes.
Date: April 11, 1950
Creator: Street, K.; Ghiroso, A. & Seaborg, G. T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The New Element Berkelium (Atomic Number 97)

Description: An isotope of the element with atomic number 97 has been discovered as a product of the helium-ion bombardment of americium. This isotope decays with the emission of alpha-particles of maximum energy 6.72 Mev (30 percent) and it emits lower energy alpha-particles of energies 6.55 Mev (53 percent) and 6.20 Mev (17 percent). The half-life of this isotope is 4.6 hours and it decays primarily by electron capture with about 0.1 percent branching decay by alpha-particle emission. The mass number is p… more
Date: April 26, 1950
Creator: Thompson, S. G.; Ghiorso, A. & Seaborg, G. T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Number of effective tubes in the ``G`` pile

Description: The method for calculating relative heat generation as a function of radius of an equivalent ``G`` type cylindrical pile for specified inhours of ideal flattening is given in INDC-3833. The report has been extended to include flattening curves for the range of zero to 800 inhours. Equations have been integrated to determine average relative power per tube for a fixed amount of flattening. Average relative power per tube, number of effective tubes, kw per effective tube, and maximum temperature … more
Date: April 3, 1950
Creator: Sege, C. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Path of Carbon in Photosynthesis. X. Carbon Dioxideassimilation in Plants

Description: The conclusions which have been drawn from the results of C{sup 14}O{sub 2} fixation experiments with a variety of plants are developed in this paper. The evidence for thermochemical reduction of carbon dioxide fixation intermediates is presented and the results are interpreted from such a viewpoint.
Date: April 1, 1950
Creator: Calvin, M.; Bassham, J. A.; Benson, A. A.; Lynch, V.; Ouellet, C.; Schou, L. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Preliminary report on human excretion of tritium

Description: Six subjects received a few millicuries Of tritium by inhalation of isotopically labeled hydrogen gas. The concentration of H{sup 3} in the urine of these individuals has been followed for a period of some 15 days. The rate of excretion of the tritium was found to be constant for a given subject but to vary considerably, among individuals. Data on five individuals arbitrarily normalized to coincide at zero time showed a range in biological half-life from about 9 days to nearly 13 days. These va… more
Date: April 6, 1950
Creator: Anderson, E.C. & Pinson, E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Quarterly Progress Report (January 1 to March 31, 1950)

Description: This is the first of a series of Quarterly Reports. These reports will deal primarily with the progress made in our scientific program during a three months period. Those interested in matters pertaining to organization, administration, complete scientific program, personnel and other matters not directly involved in current scientific progress are referred to our Annual Progress Report which is issued in January. We have attempted to describe new information that appears significant, or of int… more
Date: April 1, 1950
Creator: Laboratory, Brookhaven National
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Quarterly Report for General Research January - February - March, 1950

Description: The thermal conductivity of the gradient medium plays a very important part in the development of a calorimeter. It is a large factor in determining the sensitivity. The thermal conductivity apparatus was built primarily to find out why the measured sensitivities of the microcalorimeters were so much smaller than the calculated values. This question haa been resolved. The apparatus is now being used to study the thermal conductivity of Santocel, a granular insulating material produced by Monsan… more
Date: April 1, 1950
Creator: Haring, M. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Radioactive contamination in the environs of the Hanford Works for the period April, May, June 1949

Description: This report summarizes the measurements made for radioactive contamination in the environs of the Hanford Works for the quarter April through June 1949. This belated document is issued for the records to fill in the gap for the quarterly reports not issued in 1949 because of personnel shortage at that time. Although the data summarized in this report were already reported in the H. I. Evirons Reports for the months involved, it is still of value to study the data combining the three months of d… more
Date: April 3, 1950
Creator: Paas, H.J. & Singlevich, W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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THE ROLE OF THE CYCLOTRON IN MEDICAL RESEARCH

Description: The uses of radioactive isotopes in medical research can be conveniently divided into three principal categories; namely, the applications as tracers for the study of metabolic phenomena, as diagnostic aids in clinical medicine, and finally their role in therapy. Frequently radioisotopes available from the chain-reacting pile do not have a sufficient degree of specific activity for satisfactory use. A number of radioisotopes which can be produced with high specific activity in the pile possess … more
Date: April 19, 1950
Creator: Hamilton, Joseph G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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