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Remarks on the Double Dispersion Approach to the Bethe-Salpeter Equation

Description: The following remarks are made on the applicability of the double dispersion approach to the Beth-Salpeter equation introduced previously. 1) Any invariant solution of the Bethe-Salpeter equation in ladder approximation satisfies the double dispersion representation when the total energy-momentum is space-lake. 2) There are some exceptional invariant solutions which are not given by the previous method in the equal-mass case, but the existence of such solutions is very unlikely in the unequal-m… more
Date: August 7, 1962
Creator: Nakanishi, Noboru
Partner: UNT Libraries Government Documents Department
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Correlation of Kinetic Isotope Effects with Chemical Bonding in Three Center Reactions

Description: We consider the kinetic isotope effect in three center reactions of the type of A+BC→AB+C. Such model calculations are a good approximation to primary hydrogen isotope effects. For abstraction or transfer reactions, B becomes H, D, or T. The dynamics of the three storm system are calculated for a general quadratic potential, with the assumption that the potential energy is constant along the reaction coordinate (flat top barrier). This model system can be calculated in detail and serves to illu… more
Date: January 7, 1964
Creator: Bigeleisen, Jacob
Partner: UNT Libraries Government Documents Department
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Effects of Irradiation on the Optical Absorption and Photoconductivity of Rutile

Description: Optical absorption and photoconductivity measurements have been made on single crystals of pure synthetic rutile (TiO2). Reactor irradiations at 70°C totaling 4.8 x 10 18 nvt fast and 1.69 x10 19 nvt slow did not produce any discernible optical absorption bands; however, the transmission decreased 5 percent at all wavelengths. Reactor irradiation induced a [illegible] five photoconduction peaks in the wavelength range 4200 to 14,000 A. In addition the photopeak at 4065 A (3.05 eV) was enhanced … more
Date: January 7, 1964
Creator: Townsend, P. D.
Partner: UNT Libraries Government Documents Department
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General Operation and Construction Features of the Undercarriage System for the 80-inch Bubble Chamber

Description: The undercarriage system is required for translating, rotating, and lifting the 450 ton magnet and bubble chamber assemblies so that it can be accurately positioned in the experimental proton beam of the synchrotron. The system must make provision for the two magnet sections to be separated for the purpose of adjustment and maintenance of internal components.
Date: January 7, 1964
Creator: Wright, D. H.
Partner: UNT Libraries Government Documents Department
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Some Considerations on the Configuration and Stability of the H2 Temperature Control Loops of the 80" Bubble Chamber

Description: There is but little known about the thermal process involving the dynamics and thermodynamics of the cycling liquid H2 in the chamber and those of the H2 fluid flow in the cooling coil as well as the geometrical characteristics of the chamber body. This the physical equations governing this process are involving so many variables that this analysis becomes rather complex even if simplifying assumptions are made. To those difficulties is added the ignorance even of an approximative expression fo… more
Date: January 7, 1964
Creator: Androulakis, John G.
Partner: UNT Libraries Government Documents Department
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Cool-Down Refrigeration Requirements for 80" Bubble Chambers

Description: The purpose of this report is to determine the amount of refrigeration capacity required to cool down the 80" bubble chamber from ambient temperature to liquid hydrogen temperature.
Date: January 7, 1964
Creator: Bamberger, J. A.
Partner: UNT Libraries Government Documents Department
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Design Consideration for 80" Bubble Chamber

Description: The following general description of the theory and operation of a bubble chamber is presented so that firms who are interested in fabricating components for the Brookhaven 80" chamber will have a better understanding of the design parameters associated with it. This understanding, coupled with the fabricator's knowledge of manufacturing techniques, should enable the fabricators to suggest solutions to manufacturing problems consistent with requirements for chamber operation. In an effort to in… more
Date: January 7, 1964
Creator: Kassner, D. A.
Partner: UNT Libraries Government Documents Department
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80" Bubble Chamber Expansion System Preliminary Operating Procedures

Description: These procedures are intended to be used for the initial operation of the expansion system and serve as a basis for a more complete and revised form to be written once operating experience has been gained. An attempt has been made to offer a logical and systematic presentation to facilitate operation and maintenance of the system by the operating personnel. Thus, the sequence of valve actuations has been presented in matrix and check list form to minimize errors; this also has the advantage of … more
Date: January 7, 1964
Creator: Goodzeit, C. L.
Partner: UNT Libraries Government Documents Department
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Evaluation of Multi-Layer Insulation

Description: The purpose of this report is to compare multi-layer insulation and liquid nitrogen shielding as methods of insulating the 80-inch Liquid Hydrogen Bubble Chamber.
Date: January 7, 1964
Creator: Brown, D.
Partner: UNT Libraries Government Documents Department
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General Description of the 80" Bubble Chamber Refrigeration System

Description: Reliability of individual components and the ability to produce refrigeration even if one or two of these components should be in operable are the prime design parameters of this cycle. Each component was looked at with these two parameters in mind and any item that had obvious objections was either rejected or backed up with another piece of equipment. Along this line, you will notice (refer to line schematic) two hydrogen compressors and two nitrogen compressors; for full capacity all are req… more
Date: January 7, 1964
Creator: Bamberger, J. A.; Brown, D. P. & Jensen, J. E.
Partner: UNT Libraries Government Documents Department
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Magnet Coils Detailed Conductor Design

Description: On the basis of measurements made upon analogues of the proposed magnet, it was decided that the distribution of ampere-turns between the two exciting coils should be in a ratio of about 1:33:1. This distribution is expected to minimize the variation of the magnetic field intensity over the depth. of the chamber. Simplicity of construction demands that there be an integral number of turns in each layer of conductors. If no water connections are to be made at the inside of the coils, each coil m… more
Date: January 7, 1964
Partner: UNT Libraries Government Documents Department
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80" Bubble Chamber Expansion System Summary of Piston Motion Studies

Description: Prior to assembly into the 80" bubble chamber, the expansion system was subjected to a series of tests to check piston dynamics and gain information on the reliability of the various components. Furthermore, the rest provided operating personnel with the opportunity to become familiar with the operation and maintenance of the expansion system. Two separate tests were performed with the apparatus that was located at the north end of the AGS experimental area; one during the week of Oct. 15 and t… more
Date: January 7, 1964
Creator: Goodzeit, C. L.
Partner: UNT Libraries Government Documents Department
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Final Coathanger Design

Description: We have decided to try pressure-moulding coathangers, and this is a report on the specifications and tolerances R. R. Rau and I have calculated
Date: January 7, 1964
Creator: Yamamoto, B.
Partner: UNT Libraries Government Documents Department
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Hydrogen Refrigerator Design Capacity for 80" Chamber

Description: When the design of the refrigerator was begun, one of the important parameters was refrigeration capacity required. In order to estimate the required hydrogen refrigeration load the following had to be considered: 1. Dynamic Load due to pulsing of the chamber. Although this has been determined some two years ago through test work, it has not been published as of this date and will be presented here. 2. Static losses due to conduction, radiation, and convection. This is covered by Eng. Note BC-0… more
Date: January 7, 1964
Creator: Bamberger, J. A.; Brown, D. P. & Jensen, J. E.
Partner: UNT Libraries Government Documents Department
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Inelastic Neutron Scattering by Liquids

Description: The inelastic scattering of low energy neutrons from condensed matter offers a means of investigating the motions of atoms in liquids or solids down to times in the order of 10-12 to 10-13 seconds. The theoretical framework and techniques of such measurements are discussed and the results of cold neutron measurements with liquid H2O and Pb are presented. In H2O the neutron data show that for times in the order of 10-12 seconds the water molecule tends to maintain some average position with resp… more
Date: January 7, 1964
Creator: Palevsky, H.
Partner: UNT Libraries Government Documents Department
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Current Studies of Fission Product Behavior at BNL

Description: Programs are under way at Brookhaven National Laboratory to study the behavior of fission products released from reactor fuel materials. Major emphasis has been placed on fission product iodine because of the physiological hazard associated with the I131 isotope. A complete reactor safety analysis, considering either a slow or rapid release of fission products, requires a knowledge of the chemical and physical states of the fission products during release, the extent of their release, and an un… more
Date: January 7, 1964
Creator: Castleman, A. W., Jr. & Salzano, F. J.
Partner: UNT Libraries Government Documents Department
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Resonance Production in the Ξ Κ π

Description: In the course of a general study of K- p interactions at 2.24 Bev/c incident K- momentum, we have investigated the following reactions, the experimentally detectable final states of Ξ Κ π system. In this report we shall discuss the possible existence of Ξ π resonances above 1530 Mev and the evidence for possible structure in the overlap regions. An evaluation of the isospin of the Ξ * will be made. In addition, production and decay angular distribution of the Ξ * will be presented.
Date: January 7, 1964
Creator: Connolly, P. L.; Hart, E. L.; Kalbfleisch, G.; Lai, K. W.; London, G.; Moneti, G. C. et al.
Partner: UNT Libraries Government Documents Department
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Studies of the Rapid Beam Ejector at the Cosmotron

Description: For an experiment to measure the magnetic moment of the Λ hyperon, it was necessary to extract the external beam of the Cosmotron with maximum efficiency and with minimum time duration. To accomplish this end, the standard external beam of the machine was supplemented with the Rapid Beam Ejector. It was found that, unfortunately, the ejection efficiency of the beam was less than normal when the RBE was used. Measurements of the ejection efficiency were made by irradiating polyethylene foils at … more
Date: February 7, 1963
Creator: Barton, M. Q.
Partner: UNT Libraries Government Documents Department
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Metabolism of Fission Products in Man: Marshallese Experience

Description: Information on the metabolism of fission products in man has been obtained largely from studies carried out with parenterally-administered soluble salts of radioisotopes administered in medical treatment or in tracer studies. The recent development of the whole-body gamma spectrometer with its highly sensitive detection system has been of considerable value in extending these studies by providing data on very low levels of isotopes in man over long periods of time.
Date: December 7, 1962
Creator: Cohn, S. M.
Partner: UNT Libraries Government Documents Department
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Some Specific Considerations of the Potential Hazards of Heavy Primary Cosmic Rays

Description: The radiation of the Van Allen belts and the solar flares consists primarily of electrons and protons, the biological effects of which are reasonably well known. However, there is a very small component of the galactic cosmic rays which consists of stripped atomic nuclei of atoms as heavy as iron. The biological effects of such particles have not been extensively investigated because it is impossible to produce them in the laboratory with an energy high enough to use for mammalian experiments. … more
Date: December 7, 1962
Creator: Curtis, Howard J.
Partner: UNT Libraries Government Documents Department
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Radiation Effects on Cell Renewal Systems

Description: Much of the early work in radiation biology was predicted on the assumption that radiation effects could be understood in terms of a single mechanism. This "single mechanism" was studied on appropriate biological test objects that could be developed into biological dosimeters. Attempts were made to assess the properties of "the" biological effects from the relations of "biological dose" (skin dose, bean dose, fly dose, etc.) to physical parameters of irradiation. Notwithstanding the rigidity of… more
Date: December 7, 1962
Creator: Patt, Harvey M. & Quastler, Henry
Partner: UNT Libraries Government Documents Department
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Plant Fructose-1,6-Diphosphatases

Description: Several important metabolic processes in plants involve the conversion of triose phosphate to hexose monophosphate. These include the synthesis of carbohydrates from precursors such as pyruvate and acetyl-coenzyme A, the reductive pentose phosphate cycle of photosynthesis, and the oxidative pentose phosphate cycle. This conversion cannot be accomplished solely by glycolytic enzymes because of the irreversible nature of phosphofructokinase. Racker and Schroeder (1958) have suggested two possible… more
Date: December 7, 1962
Creator: Saillie, Robert M.
Partner: UNT Libraries Government Documents Department
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A Comparison of OH- Motions in Brucite and Micas

Description: Despite similar atomic arrangement, Brucite (Mg(OH)2) and phlogopite (KMg3(OH)2(Al,Si3)O10) present striking difference in their infrared spectra. A single absorption band is observed in phlogopite whence brucite possesses a total of 15 bands on both sides of the fundamental. A comparison of the hydroxides with micas provides supporting evidence that the complexity of the hydroxide spectra is due to interactions between neighboring hydroxyl groups. Each mineral contains a layer of magnesium ion… more
Date: December 7, 1962
Creator: Boutin, Henri & Bassett, William
Partner: UNT Libraries Government Documents Department
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Electron Spin Resonance Studies of Gamma-Irradiated Ferrocene

Description: The object of this study was to determine the nature of the free radicals induced in ferrocene by Co60 gamma rays. The irradiations were carried out on the powder at 77°K and on the single crystals at 193°K. The variation of the splitting factor, g, of the signals observed when the single crystals were oriented at different angles relative to the external magnetic field direction, indicated the existence of three types of resonance peaks. It was possible to correlate these variations with the m… more
Date: December 7, 1962
Creator: Saito, Eiichi
Partner: UNT Libraries Government Documents Department
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