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Resonance Scattering of Neutrons by Mn55

Description: Abstract: Although we are generally interested in nuclear resonance levels, our measurements on Mn55 (naturally occurring Mn is 100 percent Mn55) were undertaken in order to corroborate Goldhaber's discovery of an extremely large scattering by this element.
Date: March 24, 1947
Creator: Seidl, F. G. P.; Harris, S. P. & Langsdorf, Alexander S., (Alexander Suss), 1877-1973.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Magnetic Field Measurements by Nuclear Resonance

Description: Abstract: The purpose of this report is to outline the work done at the Radiation Laboratory toward the development of a magnetic field measuring device using the phenomenon of nuclear resonance. While the work described here is far from complete, it has served to indicate the limitations of the method as well as some of its possibilities. For reasons which will become apparent, the project is being discontinued. It is hoped that this report will serve as a starting point should the work be… more
Date: August 20, 1948
Creator: Kafitz, Peter
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Effect of Electronic Paramagnetism on Nuclear Magnetic Resonance Frequencies in Metals

Description: Observations on the shifts of nuclear resonances in metals (Id {sup 7}, Na {sup 23}, Ou {sup 63}, Be {sup 9}, Fe {sup 207}, A1 {sup 27} and Oa {sup 69}) due to free electron paramagnetism; comparison with theoretical values.
Date: October 31, 1950
Creator: Townes, C. H.; Herring, C. & Knight, W. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Kinetics of the Complexing of Ferric Ion by Thiocyanate and Chloride Ions

Description: An apparatus for rapidly mixing two solutions and recording the light absorption, which was developed by Connick and Below, has been modified. The mixing characteristics were studied and models were developed in an attempt to umder stand the observed mixing phenomena. The apparatus was applied to a study of the kinetics of the reactions Fe/sup +++/ + SCN/sup -/ = FeSCN/sup ++/ and Fe/ sup +++/ Cl/sup -/ = FeCl/sup ++/ in aqueous solution, with both reactions having the forward rate law STAd(FeX… more
Date: December 1, 1957
Creator: Coppel, Claude Peter
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries Government Documents Department
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Temperature and Phase Effects on the Photolysis of Ethyl Iodide

Description: The elementary sieps in the photolysis of liquid ethyl iodide by light of wavelength 2537 A by determining initial rates of iodine production in the presence.of added iodine and hydrogen iodide were analyzed at 25 and --70 d C to get information on the activation energies of competing elementary reaciions. Investigations were also made of the effects of additives on the photolysis of glassy ethyl iodide at --180 d C, and evidence for the formation of trapped radicals during photolysis and radio… more
Date: January 1, 1958
Creator: Luebbe, R.H. Jr. & Willard, J.E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Some Nuclear Properties of Bi206, Tl200, Tl201, Tl202, In109, In110m, and In111 : the Nuclear Spins of Bi206, Tl200, Tl201, and Tl202 ; the Nuclear Spins, Magnetic Dipole, and Electric Quadrapole Interaction Constants of In209, In110m, and In111

Description: The atomic-beam magnetic-resonance flop-in technique using radioactive detection was employed to measure the nuclear spins doff B/sup 206/ , Ti/sup 200/ , Tl/sup 201/ Tl/sup 202, In/sup 09. ln/sup 110m/ and In/sup 111/. In addition the magnetic-dipole and constatns of In/sup 109/, In/sup 110m/, ined. the signs of the In/sup 110m/ con-, stants were not determined. Results, theory, procedure, and data reduction are given. (auth)
Date: April 1, 1959
Creator: Marino, L. L.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries Government Documents Department
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The Nuclear Spins and Magnetic Moments of Certain Gold and Silver Isotopes

Description: An atomic-beam magnetic-resonance apparatus operating on the flop-in principle was used to measure the nuclear spins and hyperfine-structure separations of the /sup 2/S/sub 1/2, electronic ground state for several radioactive isotopes of silver and gold. The results of these experiments, together with calculated values of the nuclear magnetic-dipole moments, are given (auth)
Date: June 1, 1959
Creator: Ewbank, W. B.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries Government Documents Department
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Nuclear Spin and Hyperfine-Structure Measurements on the Radioactive-Iodine and Astatine Isotopes

Description: Atomic-beam magnetic resonance techniques were used to measure the nuclear spins of I/sup 123/, I/sup 124/, I/sup 126/, I/sup 130/, I/sup 132/, I/ sup 133/, I/sup 135/, and At/sup 211/. Also, measurements of the magnetic-dipole interaction constant, and the electroquadrupole interaction constant, and the electroquadrupole interaction constant for I/sup 131/ and I/sup 132/ are reported. The design of the atomic-beam apparatus is described. Experimental methods and sample preparation are discusse… more
Date: August 1, 1959
Creator: Garvin, H. L.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries Government Documents Department
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NUCLEAR MAGNETIC RESONANCE SPECTRA OF TRIALKYL PHOSPHATES AND RELATED COMPOUNDS. I. PROTON MAGNETIC RESONANCE SPECTRA

Description: High resolution proton magnetic resonance spectra are presented for 48 trial phosphates and related phosphorus compouds. Chemical shifts, spin-spin coupling Constants, and spectral analyses are reported for compounds of interest in solvent extraction technology. (auth)
Date: June 1, 1960
Creator: Shuler, W. E. & Axtmann, R. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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RADIOISOTOPE AND RADIATION APPLICATIONS. Quarterly Progress Report

Description: Results of the final dynamic experiments with the ironremoval process model using Fe/sup 59/ indicated that the intrinsic-radiotracer method is rapid, accurate, and suitable for continuous readout. Results from both static and dynamic experiments on the use of Mn/sup 54/ to aid in removing manganese from process water indicated that intrinsic radiotracers can be used to help remove low-concentration critical impurities. One phase of the hazards evaluation was concerned with the ingestion of rad… more
Date: May 2, 1961
Creator: Sunderman, D.N., ed.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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MAGNETIC PROPERTIES OF INSULATORS. Quarterly Report No. 1, Covering Period February 15, 1961 to May 15, 1961

Description: The magnetic properties of color centers were studied to obtain information regarding electron traps in insulators. Experiments designed to determine the equation governing the recovery of resonance after saturation were carried out. Relatively large samples were prepared by the method of additive coloration. KCl and RbCl crystals were used. Resonance saturation as a function of concentration was investigated and no significant dependence found. Measurements of the unsaturated susceptibility we… more
Date: May 29, 1961
Creator: Markham, J. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Sideband Technique In A Variable Frequency NMR Spectrometer

Description: The purpose of this Note is to point out the advantages of the sideband technique over the derivative method in wideline NMR spectroscopy. In the sideband technique the absorption spectrum is recorded directly and the modulation amplitude is no longer a determining factor in the resolution.
Date: August 1961
Creator: Acrivos, J. V., 1928-
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Magnetic Properties of Insulators. Quarterly Report No. 2 Covering Period May 15, 1961 to August 15, 1961

Description: The electron paramagnetic resonance (EPR) of color centers in additively colored KCl crystals is measured to observe the effects of optical bleaching at room temperature. Earlier measurements on the F-center are confirmed and the susceptibility is measured at 78 and 300 deg K over five decades of power, including the very low power region. The width and the saturation properties of the individual multiplets are studied in detail and the technique of making E PR measurements on inhomogeneously b… more
Date: August 30, 1961
Creator: Markham, J. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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PHYSICS DIVISION SUMMARY REPORT FOR JULY-AUGUST 1960

Description: In a study of nuclear resonance absorption of gamma rays. calculations were carried out to determine the effect on Zeeman lines of applying a resonant r- f field. Thirty-two gamma rays from Er/sup 161/, produced by (n,2n) and ( gamma .n) reactions. were measured and fitted into a decay scheme. Spin and parity assignments of some levels are indicated. Results from molecular beam studies are presented for Ho/sup 166/ and Ge/sup 71/. In the program for Ar/sup 40/-K/sup 40/ dating of meteorites, a … more
Date: October 31, 1961
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Nuclear Magnetic Resonance Line Shapes Resulting From the Combined Effects of Nuclear Quadrupole and Anisotropic Shift Interactions. I. Theory

Description: From introduction: "A nuclear quadrupole interaction may occur simultaneously in conjunction with an anisotropic magnetic shift in a variety of solids. The non-cubic pure metals, in particular the hexagonal close-packed ones, afford a considerable number of examples, some which have already been studied. Among the latter may be listed Ga, In, and Te, and the list of possibilities must include Ti, Zr, Hf, Lu, Sc, and La, and perhaps others. Nuclear magnetic resonances in intermetallic compounds … more
Date: 1962
Creator: Jones, W. H., Jr.; Graham, T. P. & Barnes, R. G. (Richard G.)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Optimum Design of an Atomic Beam Magnetic Resonance Apparatus

Description: We consider the optimum design of a "flop-in" atomic beam magnetic resonance apparatus, and show how the number of atoms reaching the detector per second depends on such parameters as the length of the inhomogeneous magnets, the width of various slits, and the oven temperature.
Date: 1962
Creator: Lipworth, Edgar & Minerbo, Gerald
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Tables and Graphs for Computing Debye-Waller Factors in Mossbauer Effect Studies

Description: A table of functions is presented that simplifies the evaluation of the Debye-Waller factor which gives the fraction of recoil-free gamma ray processes in Mbssbauer effect studies. A graph of the recoil-free fraction, f, as a function of the ratio of the Debye temperature to the crystal temperature for selected recoil energy to Debye temperature ratios is included for rapid estimation of f. (auth)
Date: January 15, 1962
Creator: Muir, A. H., Jr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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