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The [Sigma/Alpha] Branching Ratio Of [Y*1]

Description: Recently a T=1 resonance in the [Alpha w] system called [Y*1] has been observed with a mass of 1385 Mev. Two types of resonances have been predicted that might relate this observation to other elementary-particle interactions: (1) P 3/2 resonances in the Alpha w and Sigma w systems predicted by global symmetry corresponding to the (3/2, 3/2) resonance of the wN system, (2) a spin-1/2 Y-w resonance resulting from a bound state in the KN system. The position and width of the observed [Y*1] resona… more
Date: April 25, 1961
Creator: Alston, Margaret H.; Alvarez, Luis W., 1911-1988; Eberhard, Phillippe; Good, Myron L.; Graziano, William; Ticho, Harold K., 1921-2020 et al.
Partner: UNT Libraries Government Documents Department
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Bond Energies, Valence State Energies And Resonance¹,²

Description: Previous attempts to interpret chemical structure in terms of x-electron resonance have been recently criticized. A reinterpretation of the lengths of the C-C bonds in terms of orbital radii has not revealed any effects of x-electron resonance in the ground states of classical molecules such as 1, 3-butadiene, methyl acetylene, etc. Even in a non-classical molecule such as benzene, resonance shortening of the CC bond is only in terms of the strengths of the hybrid orbitals. If the lengths and f… more
Date: February 1961
Creator: Somayajulu, G. R.
Partner: UNT Libraries Government Documents Department
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A Separated 1.17-Bev/c K⁻ Meson Beam

Description: This report describes the design and testing of a 1.17-Bev/c separated K{sup -} beam designed in the fall of 1958 in connection with a 15-in. hydrogen bubble chamber experiment.
Date: August 25, 1959
Creator: Eberhard, Phillippe; Good, Myron L. & Ticho, Harold K., 1921-2020
Partner: UNT Libraries Government Documents Department
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1. K+ Charge Exchange - Search For K+ Charge Exchange

Description: An experiment was designed utilizing a charge-exchange reaction to study the decay and interactions of the neutral K mesons produced. The experiment produced no events that could be interpreted as either the decay or interaction of neutral K mesons. The nature of the experiment and the possible explanations of this unexpected result are presented in this paper.
Date: July 29, 1959
Creator: Birge, Robert W.; Courant, Hans J.; Lanou, Robert E., Jr. & Whitehead, Marian N.
Partner: UNT Libraries Government Documents Department
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Summary of the Research Progress Meeting of September 1, 1949

Description: The absolute excitation functions for the production of fission by charged particle bombardment in several substances were investigated at both high and low energies. The low energy work was done at the 60-inch Crocker cyclotron with alpha particles and deuterons, while the high energy work was done at the 184-inch cyclotron with alpha particles, deuterons, and protons.
Date: October 13, 1949
Creator: Wakerling, R. K. (Raymond Kornelious), 1914-
Partner: UNT Libraries Government Documents Department
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Antiproton-Nucleon Cross Sections From 0.5 To 1.0 Bev

Description: Antiproton-production and nucleon-interaction cross sections were investigated for antiprotons in the energy range 0.5 to 1.0 Bev. The antiprotons were distinguished from other particles produced at the Bevatron by a system of scintillation- and velocity-selecting Cerenkov counters. The excitation function and momentum distribution were recorded for antiproton production in carbon and compared with statistical model expectations.
Date: December 12, 1961
Creator: Elioff, Tommy; Agnaw, Louis; Chamberlain, O. (Owen); Steiner, Herbert M.; Wiegand, Clyde (Clyde Edward), 1915-1996 & Ypsilantis, Tom
Partner: UNT Libraries Government Documents Department
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RF Field Investigations on the 1/10 Scale Mark I Cavity

Description: A complete investigation was made of the r-f field in the 1/10-scale Materials Testing Accelerator (Mark I) cavity
Date: March 13, 1951
Creator: Dazey, Mitchell; Nielsen, Dale; Robertson, Raymond & Sewell, Duane
Partner: UNT Libraries Government Documents Department
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Use of the Characteristics of Permalloy in Detecting a Predetermined Value of Magnetic Field or Current in a Time-Varying Electromagnet: 1/4 Scale Bevatron Operating Model, Magnetic Field Strength-Magnet Current Correspondence

Description: In programming the sequence of events in the operational cycle of the bevatron, certain devices must be triggered at specific values of magnetic field strength in the gap. It is desirable that the time-jitter, which corresponds to field jitter, of the tirggering pulses be small. In the synchrotron this is done with peaking strips which are located in the fringing field of the gap.
Date: March 24, 1949
Creator: Richardson, R. E.; Shuey, R. L.; Younkin, R. & Stephan, W. J.
Partner: UNT Libraries Government Documents Department
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Crystal Structure Of B 'Cu0.75Al0.25

Description: The problem of crystal structure of the martensitic B1 phase of the eutectic alloy in the Cu-Al system still requires a more accurate clarification (Hun ger and Dienst 1960, Tarora 1949). Martensitic phases in general are formed through small thrust (shear) deformations of the original lattice. On this basis the results of Hunger and Dienst (1960) are doubtful, since the lattice constants found by them have required a considerable reclassification. From the known lattice constants of the B1 pha… more
Date: April 20, 1962
Creator: Thomas, G. & Huffstutler, M.C., Jr.
Partner: UNT Libraries Government Documents Department
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Evidence For a T = 0 Resonance in the Z[ ] System

Description: In previous letters we have reported a Av resonance, called Y*1, observed through the study of the interaction of 1.15-Bev/c K* mesons in hydrogen in the Lawrence Radiation Laboratory 15-in. bubble chamber. We now wish to report the results of the study of the three reactions [formula](1), [formula](2) and [formula](3).
Date: April 28, 1961
Creator: Alston, Margaret H.; Alvarez, Luis W., 1911-1988; Eberhard, Phillippe; Good, Myron L.; Graziano, William; Ticho, Harold K., 1921-2020 et al.
Partner: UNT Libraries Government Documents Department
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Double Meson Production In Proton-Deuteron Collisions. II

Description: In a previous publication we reported measurements of the momentum spectra of He<sup>3 and H<sup>3 nuclei produced in collisions of 740-MeV protons with deuterium. The He<sup>3 spectrum exhibited an anomaly in the form of a peak in the region corresponding to double pion production. For reactions resulting in a He<sup>3 the two pions (or particle) can be isotopic spin states 0 or 1; if a H<sup>3 nucleus results only 1 = 1 is allowed. We have since repeated the experiment with a new arrangement … more
Date: August 1961
Creator: Booth, Norman E.; Abnashian, Alexander & Crowe, Kenneth M.
Partner: UNT Libraries Government Documents Department
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Calculation of Geometrical Efficiency of Counters

Description: Let F be the flux of radiation going from a sample of radius R2 to a counter of radius B1 then the emitted intensity of radiation per unit solid angle. Then the flux between two elements of area do1 and do2 will be given by [equation] since [equation] and [equation]. Calculations and equations follow.
Date: August 8, 1952
Creator: Henrich, Louis R. (Louis Richard), 1908-
Partner: UNT Libraries Government Documents Department
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An 8-Matrix Theory of the Vertex p - NN Based on the Strip Approximation

Description: The present study was motivated by an attempt to understand low energy [formula] scattering within the framework of the bootstrap principle and the un-Reggeized version of the strip approximation. This work attempts to generate low energy [formula] scattering in the p(1,1) and p(3,3) states assuming the potential operating in these states is generated by the exchange of low mass meson states in the crossed t-channel and low mass baryon states in the crossed u channel. In particular, the p-meson… more
Date: May 1964
Creator: Sarkissian, M. Der
Partner: UNT Libraries Government Documents Department
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The Infrared Spectra Of Marginally Metallic Systems, Sodium-Ammonia Solutions

Description: The sodium-ammonia solution system permits investigation of an array of compositions spanning the transition from non-metallic to metallic bonding. Reflection spectra in the range 1-20 [ ] were measured for solutions of mole ratio 5.5 to 168 [ ] per Na. The dilute solutions show peaks characteristic of the vibrations of ammonia and a strong peak near 1.5 [ ] which is assigned to the solvated [ ] species. Concentrated solutions show high reflectivity over broad wavelength ranges. The results for… more
Date: February 1961
Creator: Beckman, Tad A., 1936- & Pitzer, Kenneth S. (Kenneth Sanborn), 1914-1997
Partner: UNT Libraries Government Documents Department
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Electromagnetic Properties Of A Charged Vector Meson

Description: A systematic study is made of the electromagnetic properties of charged vector mesons. The various formalisms used to describe charged particles of spin 1 are compared, and a new first-order formulation of the Stuckelberg theory is developed.
Date: October 12, 1961
Creator: Young, James A. & Bludmen, Sidney A.
Partner: UNT Libraries Government Documents Department
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Carrier-Free Separation Of Hafnium From Rare-Earth Oxides

Description: A carrier-free separation of hafnium from several hundred milligrams of rare earth oxides by anion exchange from saturated HC1 solution is given. The procedure is completed in 4-8 hours and is suitable for remote control work.
Date: May 1961
Creator: Tocher, Mab I. & Hollander, Jack M.
Partner: UNT Libraries Government Documents Department
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Measuring Rotary Table Angle Error

Description: The angle errors of a rotary table can be accurately measured by stepping off the angles with an optical caliper and computing table error from (1) the error readings at each angle measured and (2) the cumulative caliper error that will be evident when the circle is closed at 360', eliminating the necessity of adjusting the caliper to the exact setting.
Date: April 27, 1964
Creator: Bryan, J. & Mohl, O.
Partner: UNT Libraries Government Documents Department
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Separation of Iron and Cobalt on Synthetic Resin

Description: Recent studies on the separation of cobalt and nickel and on the behavior of iron in hydrochloric acid on Dowex-1 resin in relation to the selective adsorption of chloride complexes of these elements have suggested the use of resin for the separation of iron and cobalt.
Date: August 5, 1953
Creator: Helwig, Harold L.; Ashikawa, James K.; Clokie, Hugh & Smith, Elmer R.
Partner: UNT Libraries Government Documents Department
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Test and Evaluation of Large Magnetic Tape-Wound Cores Used in the Astron Accelerator

Description: Project Sherwood is a nation-wide attempt to produce a controlled thermo-nuclear fusion reaction. The Astron experiment, conceived by Nicholas Christofilos, will utilize the effects of a cylindrical layer of relativistic electrons to contain and heat the plasma. A high quality, 200-ampere, 5-Me V electron beam is required to form the electron layer. The electron beam is produced by a linear induction electron accelerator. Three hundred and thirty-three toroidal cores of magnetic material surrou… more
Date: October 15, 1963
Creator: Sewell, Roger L.
Partner: UNT Libraries Government Documents Department
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A Note on the Mechanism of the Formation of Alpha-Acylamino Ketones from Amino Acids

Description: The reaction of alanine-1-C14 and phenylalanine-1-C14 with acetic anhydride in the presence of pyridine has been studied and the carboxyl group of the amino acid has been shown to be the exclusive source of carbon dioxide involved.
Date: August 23, 1950
Creator: Fry, Arthur & Rapoport, Henry
Partner: UNT Libraries Government Documents Department
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MTA, A-12 Development, Drift Tubes - RF and Beam Geometry. Comparison of A-12 to A-24

Description: The final r.f. characteristics of A-12 are shown. The mechanical features are available in UCRL-1859. If A-12 were to be changed to 24.2 mm rather than 12.1 mm, keeping the same length and the same constant average coil gradient of 0.375 MV/ft., the characteristics of such an A-24 can be obtained from the attached curves.
Date: November 17, 1952
Creator: Schelberg, A. & Kitchen, S.
Partner: UNT Libraries Government Documents Department
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Elastic Scattering of 31-Mev He3 Ions From Several Elements

Description: The absolute differential cross sections for elastic scattering of 31-Mev He3 ions on Be, Al, Cu, Sn(nat), Sn120, and Bi have been measured in the angular range of approximately 10 to 120 deg in the center-of-mass system. Thin self-supporting foil targets were chosen to span the parameter A 1/3, where A is the target mass number. The first excited states of the isotopes of the above elements had sufficient energy separation from the ground state to enable elastic scattering to be resolved from … more
Date: December 31, 1961
Creator: Igo, George; Markowitz, Samuel S. & Vidal, Jose G.
Partner: UNT Libraries Government Documents Department
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Calculation of Shielding for Mark II Accelerator

Description: The proper roof thickness to correspond with a given side wall thickness has been estimated fro experience with the 184 feet cyclotron, which has indicated that a roof of about 1 1/2 feet should accompany a wall of 5 feet, and a roof of 4 feet should accompany a wall of 15 feet. For the roof area involved, this should bring about the condition that down-scattered neutrons in the working areas are but a small fraction of the neutrons coming through the side walls.
Date: June 30, 1951
Creator: Moyer, B. J.
Partner: UNT Libraries Government Documents Department
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Influence of Different Y Chromosomes on Secondary Nondisjunction in D. Melanogaster

Description: Females heterozygous for a wildtype X chromosome from a Samarkand stock and an chromosome of the composition [formula] were tested for the frequency of X-chromosomal non-disjunction and segregation of the X's when Y chromosomes of different types were present in the females. The Y chromosomes used were 1) a normal unmarked Y, 2) [formula], 3) [formula] and 4) [formula] (a chromosome which arose in one of our experiments and has not yet been analyzed). Since this was only a preliminary test no a… more
Date: January 18, 1962
Creator: Hildreth, P.
Partner: UNT Libraries Government Documents Department
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