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Boiling Burnout Newsletter No.1

Description: Preliminary data are enclosed in Tables I, II, II, IV, V, and VI. Tables I to V are data for round nickel tubes in a vertical and inclined (45°) position. Table VI contains some preliminary data for nickel rectangular channels (0.060" and 0.050" spacings) in a vertical position.
Date: December 1, 1954
Creator: Rickard, Corwin L.
Item Type: Refine your search to only Report
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The Nuclear Reactor with a Transverse Air Gap

Description: Diffusion theory and transport theory approaches to the problem of a nuclear reactor with a transverse air gap are compared. It is suggested that the differences in results for thin gaps is due to the fact that diffusion theory does not adequately represent the flux distribution in the immediate vicinity of the gap. For mathematical conveniences previous treatments of the gap problem have made use of fictitious image piles which exaggerate the neutron losses. The extent of the error is estimate… more
Date: August 24, 1954
Creator: Chernick, J. & Kaplan, I.
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Abstract for the Glasgow Meeting - "International Conference on Nuclear Physics": Gamma Transitions and the Shell Model

Description: The study of the interaction of the electromagnetic field with nuclei has proved very fruitful for the elucidation of many details of nuclear structure. The γ-ray transitions observed in either absorption or emission can be divided into three classes, depending on whether the matrix elements of the transition are (1) much larger, (2) approximately equal or (3) much smaller than those expected for single proton transitions which are usually taken as a norm. In class (1) we find (a) the broad tra… more
Date: July 1954
Creator: Goldhaber, M.
Item Type: Refine your search to only Report
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Paper for Glasgow Conference on Nuclear Physics: Cosmotron Production of Heavy Mesons

Description: One might expect that the Cosmotron would offer certain advantages over cosmic rays for the study of heavy unstable particles; provided, of course, that it can produce them. In the first place, the conditions under which they are produced could be controlled to a considerably greater extent. In the second place, it might be possible to arrange conditions under which they would be observed more abundantly, an actual beam of heavy mesons being the ideal situation.
Date: July 1954
Creator: Thorndike, A. M.
Item Type: Refine your search to only Report
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The Experimental Application of Neutron Capture Therapy to Glioblastoma Multiforme

Description: The rapid development of the field of atomic energy during the past few years now permits the exploration of applications to medicine involving new concepts in the treatment of cancer. One such has been the study of neutron capture therapy which is being developed at the Brookhaven National Laboratory.
Date: July 26, 1954
Creator: Farr, Lee, E., M. D.
Item Type: Refine your search to only Report
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The Role of Internal Conversion in the Study of Isomeric Transitions

Description: A short review of the field of internal conversions. Isomeric transitions teach us many details of nuclear structure. In these studies electromagnetic theory is considered as a "tool". It is a quite quantitative tool in the case of "internal conversion" - a phenomenon which has been widely studied for many years. Internal conversion takes place in competition with γ-ray emission: a fraction of the nuclei in excited states decay by γ-ray emission, the remaining fraction by transferring the energ… more
Date: June 24, 1954
Creator: Goldhaber, M.
Item Type: Refine your search to only Report
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Procedure for Annealing Operation

Description: By heating the normally cool areas of graphite to temperatures of 200°C or higher, it is evident that a substantial portion of the energy stored will be released. The physical dimension change which is associated with the radiation damage of graphite has been noted to partially recover under laboratory conditions when this amount of stored energy is released. This latter phenomenon is of prime interest in this operation. If a dimension recovery is noted on the gross structure, a solution to cer… more
Date: 1953
Creator: Powell, R. W.
Item Type: Refine your search to only Report
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Additional Experiments on Stored Energy in BNL Reactor Graphite

Description: In the memorandum entitled "Stored Energy in BNL Reactor Graphite", dated February 25, 1953, there is described an experiment conducted by Gurinsky's group to determine the energy per gram of irradiated graphite released in a 200°C anneal. Similar experiments were subsequently conducted by W. Kosiba, differing from the original in two particulars: a) Instead of two graphite samples, one normal, and one irradiated, Kosiba used only an irradiated sample which he heated first to release the stored… more
Date: August 3, 1953
Creator: Mulhern, T.
Item Type: Refine your search to only Report
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Stored Energy in BNL Reactor Graphite

Description: Radiation damage to graphite has several consequences of practical importance. The growth of graphite under radiation (Wigner's disease) in production reactors has always been a serious concern. The thermal conductivity of graphite decreases greatly with time of irradiation and is important in long range studies of reactor temperature problems.
Date: February 25, 1953
Creator: Chernick, J.
Item Type: Refine your search to only Report
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The Rotary Rain Indicator, an Electrical Precipitation Time Recorder

Description: The rotary rain indicator, an electrical device for recording the time of beginning and ending of periods of precipitation, was developed at the Brookhaven National Laboratory Meteorology Group and has operated successfully for eight months. Its sensitive element consists of a rotating grid whose circuit may be completed by a drop of water.
Date: 1953
Creator: Raynor, Gilbert, S.
Item Type: Refine your search to only Report
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Diffraction Studies of Possible Ordering in α-brass

Description: Recently, there has been some evidence to point to possible ordering in the α-brasses. Masumoto et al. have concluded from their specific heat measurements that there is a possibility of ordering in the α-brasses. In particular they observed an anomaly in the specific heat curves for the α-brasses for the temperature range from 200 to 260°C and explained these results upon the basis of a change in local or short range order in α-brasses at these temperatures. In connection with the study of rad… more
Date: March 29, 1954
Creator: Keating, David, T.
Item Type: Refine your search to only Report
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LMFR Progress Letter for April 1954

Description: Summary of miscellaneous updates related to the project. This includes information on the following. Simplified equations for modeling reactor conditions. Solubility tests involving thorium, bismuth, and protactinium. various other measurements and tests involving thorium, uranium, protactinium, bismuth, aluminum, and various other salts.
Date: May 21, 1954
Creator: Miles, F. T.
Item Type: Refine your search to only Report
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LMFR Progress Letter for March 1954

Description: Summary of miscellaneous updates related to the project. This includes information on the following: the declassification of a relevant paper, solubility measurements, static corrosion tests, various other tests involving bismuth, magnesium, uranium, protactinium, and thorium.
Date: April 15, 1954
Creator: Miles, F. T.
Item Type: Refine your search to only Report
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LMFR Progress Letter for February 1954

Description: In a third run with the fluorine torch, the settling chamber wells were kept hotter than before (≥ 625°C); the flame was cooled by diluting the fluorine with helium. In the analysis of the products, 99% of the thorium fluoride fed in was accounted for, but only 64% of the protactinium activity. Part of this was carried in the exhaust gases past the cold trap and into the soda line disposal column, where it was detected by survey meters. The stripping of protactinium from the solid was somewhat … more
Date: March 10, 1954
Creator: Miles, F. T.
Item Type: Refine your search to only Report
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Gamma Ray Polymerization of Acrylamide in the Solid State

Description: The polymerization of vinyl monomers can be initiated by heat, ultraviolet radiation, and various catalysts. More recently, ionizing radiation has been shown to effectively initiate vinyl polymerization. However, polymerization in the solid state by ionizing radiation is not reported in the literature, although several papers have been published that describe briefly the thermal polymerization of divinyldiphenyl, Leuch's anhydride and in greater detail the peroxide catalyzed polymerization of a… more
Date: January 15, 1954
Creator: Mesrobian, Robert, B.; Ander, Paul; Ballantine, David, S. & Dienes, G. J.
Item Type: Refine your search to only Report
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Neutron Capture Gamma Ray Spectra

Description: A series of measurements was performed to investigate the gamma ray spectra, in the region from about 100 kev to about 3 Mev, resulting from the capture of thermal neutrons in a number of elements. The purpose of the experiment was to supplement the high energy capture gamma ray data in order to remove some of the ambiguities from the proposed energy level schemes and to obtain information for the Shielding Group of Brookhaven National Laboratory on elements normally found in reactors.
Date: November 1, 1953
Creator: Reier, Melvin
Item Type: Refine your search to only Report
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The Cosmotron Radio Frequency Accelerating System

Description: The proton beam in the Cosmotron is accelerated to an energy of 2.3 billion electron volts by a radio frequency voltage which is impressed across an insulated gap in the ferrite loaded accelerating cavity of the vacuum chamber. To maintain a constant orbit radius as the beam is accelerated, the frequency of the accelerating voltage must increase from the initial value of 370 kc/sec to 4200 kc/sec during the one second magnet pulse. Over the entire 11:1 frequency range, a minimum gap voltage of … more
Date: November 24, 1953
Creator: Rogers, Edwin, J. & Flotkin, M.
Item Type: Refine your search to only Report
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The Occurrence and Control of Radioactive Entrainment in Evaporative Systems

Description: A study has been made of entrainment generation in a submerged coil evaporator and a vertical-tube natural circulation evaporator. Both evaporators generated about the same amount of entrainment at comparable boil-up rates. The decontamination efficiency of a submerged coil evaporator is correlated to the boil-up rate. The efficiency of a bubble-cap column, a Raschig ring packed tower, and a glass wool packed tower as de-entrainment devices was studied, the glass wool packed tower proving to be… more
Date: October 1953
Creator: Menowitz, B.; Bretton, R. H. & Horrigan, R. V.
Item Type: Refine your search to only Report
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Measurements of Water Lattices

Description: A series of measurements of ε in slightly enriched uranium, light water lattices is presently under way at Brookhaven. Figure 1 shows ε as a function of water-to-metal ratio for .600" diameter rods, of 1.3% enrichment. Because of interaction between neighboring groups of rods, ε increases rapidly as the water-to-metal ratio decreases.
Date: July 20, 1953
Creator: Kouts, Herbert & Chernick, Jack
Item Type: Refine your search to only Report
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Calculation of Average Flux in Moderator of Water Lattices by Means of a Relaxation Method

Description: The following report concerns the application of a relaxation mesh method for the determination of the average flux within the moderator of a light water moderated, 1.027 per cent U-235, hexagonal lattice with a volume ratio (V_H2O + V_Al)/V_Uranium of 4:1. It was hoped that the calculation would enable one to determine any differences in flux which might result from the fact that the unit cell is a hexagon instead of a cylinder. Because we were primarily interested in the effect due to geometr… more
Date: March 24, 1953
Creator: Oleksa, S. & Mozer, B.
Item Type: Refine your search to only Report
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