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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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Theory of Final State Interactions

Description: Using requirements of analyticity and the unitarity of the S-matrix we obtain the dependence of a transition amplitude on the invariant mass of two particles strongly coupled to other two particle channels. As an example, we consider the production of a Σπ state near the Y*₀ resonance assuming it is coupled to a KN state in an s 1/2 state.
Date: August 20, 1962
Creator: Nauenberg, Michael
Partner: UNT Libraries Government Documents Department
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Pion Resonances in π⁻-p Interactions at 4.65 Bev/c

Description: This note describes some results of the study of single pion production in π⁻-p interactions at 4.65 Bev/c, using the BNL 20" Hydrogen Bubble Chamber. It is well known that the observability of some of the particle resonances (e.g. 33 Isobar and η) varies markedly with the energy of the incident particle. The ρ meson has been observed in π⁻-p interactions at 1.25 Bev/c and 1.9 Bev/c incident pion energies. Evidence will be shown that this resonance persists with the much higher incident pion en… more
Date: August 9, 1962
Creator: Munir, B.A. & Zorn, G. T.
Partner: UNT Libraries Government Documents Department
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Minutes of the Conference of Linear Accelerators for High Energies

Description: During the past year notable progress was made in several laboratories on design for linear accelerators in the energy range up to and above 1 Bev. Interest in linacs for this energy centers on two possible applications: first, as injectors for 300 to 1000 Bev synchrotrons, and second, as sources of intense meson beams. To review this progress, a conference jointly sponsored by the Brookhaven National Laboratory and Yale University was held at Brookhaven during the week of August 20, 1962.
Date: 1962-08-20/1962-08-24
Creator: Blewett, J. P.; van Steenbergen, A.; Knowles, H. B.; Ohnuma, S. & Sinclair, C. K.
Partner: UNT Libraries Government Documents Department
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A Fast Neutron Time of Flight System for Use With Cyclotrons

Description: "Time of flight spectrometers for the study of neutrons emitted in charged particle reactions have become important in recent years, following the development of suitable photomultiplier tubes and electronic circuits for nanosecond (ns) timing measurements. The principle of operation is simple. The particles exciting the nuclear reactions in which the neutrons are produced fall on the target in bunches of the order of a nanosecond in width. the arrival of product neutrons at a organic scintil… more
Date: August 16, 1962
Creator: Fulbright, H.W.; Verba, J. W.; Deshpande, V. K. & Hamann, A. K.
Partner: UNT Libraries Government Documents Department
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The Thermal Expansion of Five Titanium Carbide Cermets from 68 to 1800F

Description: This technical report presents measurements of the thermal expansion of five titanium carbide type cermets from 68 to 1800F. These cermets are designated by Kennametal, Inc., as K 138A, K 150A, K 152B and K 162B. They contain from 64 to 80 weight percent titanium carbide, 10 to 30 weight percent metal binder and 6 to 10 weight percent other carbides. The metal binders are cobalt, nickel, and nickel and molybdenum. An attempt was made to calculate the thermal expansion of each type cermet fr… more
Date: August 17, 1962
Creator: Harrington, L. C. & Rowe, G. H.
Partner: UNT Libraries Government Documents Department
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Elastic Thermal Stress in Reactor Fuel Elements -- a Comparative Study of Various Shapes

Description: A method for comparison and evaluation of thermoelastic stresses is given for a range of fuel element shapes based on parameters available from the initial study of a reactor system. The shapes studied, in descending order of stress level are circular rods, concentric tubes, flat plates, and a matrix of circular holes.
Date: August 1962
Creator: Binns, Ian M.
Partner: UNT Libraries Government Documents Department
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The Reprocessing of Beryllium-Base Reactor Fuels : a Chemical Feasibility Study of a Modified Thorex Process for the Recovery of the Uranium and Thorium

Description: Stable solutions of basic beryllium nitrate can be formed with beryllium concentrations up to 9M, and an NO3/Be mole ratio as low as 1:1. The efficiency of basic beryllium nitrate as an agent for salting out uranium into a tributylphosphate/kerosene solvent has been compared with that of other salts. It appears possible to separate uranium and thorium from beryllium and fission products using a modified Thorex process in which beryllium nitrate replaces aluminum nitrate.
Date: August 1962
Creator: Farrell, M. S.; Orrock. B. J. & Temple, R. B.
Partner: UNT Libraries Government Documents Department
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The Ion Exchange Behaviour of Beryllium Salicylate Complexes

Description: As part of a general study of the co-ordination chemistry of beryllium, the beryllium salicylate complexes have been investigated by ion exchange procedures. The evidence indicates that a neutral 1 : 1 and an anionic 1 : 2 chelate exist in solution under appropriate conditions, and their stability constants have been determined by ion-exchange methos. The values of the stability constants were found to be [beta]1 = 4.97 x 10 (12), and [beta]2 = 2.63 x 10(22).
Date: August 1962
Creator: Fardy, John Joseph
Partner: UNT Libraries Government Documents Department
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The Reprocessing of Homogeneous Beryllium-Base Reactor Fuel : a Suggested Scheme for the Selective Aqueous Dissolution of the Matrix

Description: The matrix of a dilute homogeneous H.T.G.C. reactor fuel employing metallic beryllium as a moderator can be selectively dissolved by a caustic soda solution containing salicylate ion. At least 99 percent of the uranium and thorium can be recovered as insoluble solids, but in the case of irradiated material the uranium loss might be higher. Some decontamination of the resulting beryllium solution from fission products and Pa233 can also be obtained. A tentative chemical flowsheet is proposed on … more
Date: August 1962
Creator: Farrell, M. S. & Temple, R. B.
Partner: UNT Libraries Government Documents Department
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Transport Reactions of Some Vanadium (III) Halides

Description: Technical report. From Abstract : "The reactions of VCl2. VCl3, and VCl3-VBr3 mixtures with bromine vapor at 350 to 450°C led to vaporization of the halides and deposition of mixed halides of vanadium (III) at lower temperatures."
Date: August 21, 1962
Creator: McCarley, Robert E.; Roddy, James W. & Berry, Keith O.
Partner: UNT Libraries Government Documents Department
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The Thallium-Indium Phase Diagram as a Function of Composition, Temperature, and Pressure

Description: Technical report. From Abstract : "The thallium-rich region of the thallium-indium phase diagram was determined from atmospheric pressure to 5.5 kbars primary from electrical resistivity data obtained as a function of composition, temperature, and pressure."
Date: August 21, 1962
Creator: Meyerhoff, Robert Wagner & Smith, J. F.
Partner: UNT Libraries Government Documents Department
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Magnetization and Electrical Resistivity Terbium Single Crystals

Description: Technical report. From Abstract : "Magnetic moment measurements have been made on single crystals of terbium (hcp) with fields of 50 to 18,000 oe applied along the <1120> (a-axis), <1010> (b-axis), and <0001> (c-axis) directions. The temperature range covered was 1.4 to 500°K."
Date: August 23, 1962
Creator: Hegland, D. E.; Legvold, S. & Spedding, F. H.
Partner: UNT Libraries Government Documents Department
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Acid-Base Equilibria in Tertiary Butyl Alcohol

Description: From abstract: "The dissociation of acids in tertiary butyl alcohol has been studied by potentiometric, spectrophotometric, and conductimetric methods. Values for the over-all dissociation of perchloric and picric acids and several tetrabutylammonium salts were estimated by the Fuoss-Kraus treatment of conductance data. Potentiometric studies were carried out at constant ionic strength in order to minimize activity coefficient variations. An acidity scale was established from potentiometric mea… more
Date: August 6, 1962
Creator: Marple, Leland & Fritz, James S. (James Sherwood), 1924-
Partner: UNT Libraries Government Documents Department
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The Vapor Pressures of VCl2, VCl3, VBr2, and VBr3 by Knudsen Effusion

Description: Technical report. From Abstract : "The vapor pressures of crystalline VCl2, VBr2, VCl3 and VBr3 have been measured by the Knudsen effusion method using pyrex and Vycor effusion cells. ... During the measurements on VCl3 and VBr3 dissociation and disproportionation of the samples occurred simultaneously with the simple vaporization. However, because the product of each of these processes was collected separately during an experiment, the vapor pressure due to sublimation was obtained without dif… more
Date: August 21, 1962
Creator: McCarley, R. E. & Roddy, J. W.
Partner: UNT Libraries Government Documents Department
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A Facility for Chemical Separation of Pu238

Description: Technical report. From Abstract : "A facility for separation of Pu238 and Np237 from irradiated neptunium dioxide target slugs was designed, constructed, and operated at the Savannah River Laboratory. This report describes the facility and includes design details of equipment." From Summary : "The main problems encountered during the design of the facility were: (1) to provide adequate containment and shielding of the radioactive materials, (2) to select chemical- and radiator-resistant materia… more
Date: August 1962
Creator: Coogler, Arthur L. & Fowler, Bill F.
Partner: UNT Libraries Government Documents Department
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Z Plant Filtrate Ion Exchange Facility (CGC-978) start-up slowsheep

Description: A flowsheet representing start-up conditions of the Filtrate Ion Exchange Facility is given. These flowsheet conditions are used for the routine recovery of plutonium from oxalate precipitation filtrates. (LK)
Date: August 31, 1962
Creator: Berglund, C. J.
Partner: UNT Libraries Government Documents Department
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Revised goal exposure plans

Description: The purpose of this report is to transmit revised goal exposure plans for normal production material. These plans supersede previous recommendations. Inherent in these plans are the assumptions: (1) The plant must produce a product containing six percent Pu-240, and (2) product blending capabilities are such that there are no restrictions, other than economic, on Pu-240 buildup at an individual reactor. Due to recent assessed changes in metal performance and conversion of DR Reactor to bumper n… more
Date: August 7, 1962
Creator: Shimer, R. D.
Partner: UNT Libraries Government Documents Department
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Production Test IP-524-AL, testing in 1706-KE single-pass tubes of Quachrom Glucosate as a replacement for dichromate

Description: The objective of the production test detailed in this report is to authorize testing in the 1706-KE single-pass facility to measure the corrosion of aluminum-clad fuel elements in process water containing 0.20 ppm of Quachrom Glucosate added in place of dichromate and to compare this corrosion to corrosion in normal process water. Tubes SP-5 and SP-6 will be run with 0.20 ppm of Quachrom Glucosate and no dichromate; tests will be made at both pH 6.6 and 7.0. Simultaneous comparison corrosion me… more
Date: August 7, 1962
Creator: Dickinson, D. R. & Van Wormer, F. W.
Partner: UNT Libraries Government Documents Department
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Evaluation of lithium as a control rod poison

Description: To permit more accurate evaluation of the incentives for isotopes producing control rods a determination was performed of the tritium production which would result from conversion to lithium HCR`s. A cursory examination of the gains resulting from the use of lithium shows that a significant amount of tritium could be produced in this manner totaling 1.6 percent of the present Pu-239 production on an atom equivalent basis.
Date: August 10, 1962
Creator: Carter, R. D.
Partner: UNT Libraries Government Documents Department
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