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Showing 1 to 20 of 43 for “"positron annihilation"”.

  1. A new beamline for positron annihilation lifetime spectroscopy

    Weed, Ryan Winslow2011

    … PALS beamline based on a Surko-type buffer gas positron trap, the first of its kind in the world. A significant amount of work has gone into optimization of the timing and intensity characteristics of positron pulse. Successful implantation of 'Mills ideal function' bunching method has led to …

    aus-cath Repository record

  2. A new beamline for positron annihilation lifetime spectroscopy

    Weed, Ryan Winslow2011

    … PALS beamline based on a Surko-type buffer gas positron trap, the first of its kind in the world. A significant amount of work has gone into optimization of the timing and intensity characteristics of positron pulse. Successful implantation of 'Mills ideal function' bunching method has led to …

    anu Repository record

  3. Pair production of W bosons in electron positron annihilation

    Nahn, Steven C. (Steven Christopher), 1968-Massachusetts Institute of Technology1998

    Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 1998.

    mit Repository record

  4. The Origin of the 511 keV Positron Annihilation Emission Morphology

    Johns, Bethany

    clemson Repository record

  5. Asymmetric Positron Annihilation in Chiral Tartrate and Tartaric Acid Crystals

    Corsiglia, Gerald A.University of Missouri–Kansas City2015

    Positron annihilation lifetime spectroscopy (PALS) has been used to study the interactions of positrons with chiral tartaric acids and tartrates. Differences in lifetimes of and its intensity I2 were compared between large crystals grown from the D- and L- enantiomers of sodium ammonium tartrate …

    umkc Repository record

  6. Hadron production in electron-positron annihilation below the bottom-threshold

    König, A.C.[S.l. : s.n.]1985

    Contains fulltext : mmubn000001_028489322.pdf (Publisher’s version ) (Open Access)

    radboud Repository record

  7. A study of iron based alloys by positron annihilation spectroscopy

    Mostafa Mohamed Mohamed Mohamed, KhaledGhent University. Faculty of Engineering2009

    ghent Repository record

  8. Positron Annihilation at the Chiral Center of Optically-Active Compounds

    Spitzer, Victor MichaelUniversity of Illinois at Urbana-Champaign2014

    Made available in DSpace on 2014-12-13T20:10:19Z (GMT). No. of bitstreams: 1 7804165.pdf: 3642069 bytes, checksum: e2e50000bb7c99214fabe1543b5c4c0e (MD5) Previous issue date: 1977

    uiuc Repository record

  9. Positron Annihilation in N-Pentane Solutions of Galvinoxyl Free Radical

    Switzer, William Lawrence, IiiUniversity of Illinois at Urbana-Champaign2014

    Made available in DSpace on 2014-12-10T23:01:12Z (GMT). No. of bitstreams: 1 7121246.pdf: 4404790 bytes, checksum: 87abbc4da4937206c2cc9ecad94eab19 (MD5) Previous issue date: 1971

    uiuc Repository record

  10. Positron Annihilation Lifetime Spectroscopy Methodology and Application to Perovskite Oxide Materials

    Kanda, GurmeetUniversity of Dundee2015

    … studies aimed at improving the methodology of positron annihilation lifetime spectroscopy (PALS), and applied PALS to gain a better understanding of doping mechanisms in ABO3 perovskite oxide materials.<br/><br/>Reliable decomposition of PALS spectra requires an accurate description of the …

    dundee Repository record

  11. Electron-positron annihilation into photons at √s = 50 to 64 GeV

    Sterner, Kevin L.Virginia Tech1993

    We present a study of e⁺e⁻ collisions where only photons are visible in the final state in data taken with the AMY detector at TRISTAN. Data are presented at CM energies from 50 to 64 GeV, with a total integrated luminosity of 189.1 pb⁻¹. Differential cross sections for e⁺e⁻ → γγ, γγγ are measured …

    vt Repository record

  12. Clustering kinetics in Al-Mg-Si alloys investigated by positron annihilation techniques

    Liu, Meng2014

    … wurden während der Kaltauslagerung mittels Positronen-Lebensdauer-Spektroskopie, Dopplerverbreiterungs-Spektroskopie sowie Thermoanalyse (DSC) untersucht. In reinem Al, Al-Mg- und Al-Si-Legierungen werden Positronen entweder in der Matrix oder in einzelnen-Leerestellen (Al) bzw. in …

    tu-berlin Repository record

  13. Density Functional Calculations Of F-Center Related Positron Annihilation In Alkali Halides.

    Kim, Keunjoo

    uab Repository record

  14. Positron Annihilation lifetime studies of inorganic materials using a new positron beamline

    Roberts, Jason2012

    … unique information about a target sample, is Positron Annihilation Spectroscopy (PAS). The initial aim of the research presented here was the development and characterisation of a positron beamline for materials studies. This beamline, now operational, has been developed to measure the …

    aus-cath Repository record

  15. Positron Annihilation lifetime studies of inorganic materials using a new positron beamline

    Roberts, Jason2012

    … unique information about a target sample, is Positron Annihilation Spectroscopy (PAS). The initial aim of the research presented here was the development and characterisation of a positron beamline for materials studies. This beamline, now operational, has been developed to measure the …

    anu Repository record

  16. Positron annihilation spectroscopy to understand defect formation and evolution in neutron-irradiated Fe-Cr model alloys

    Romnes, Carly J.University of Illinois at Urbana-Champaign2020

    Positron annihilation spectroscopy (PAS) is a powerful, non-destructive technique used to characterize the defect properties of materials. There are two major types of PAS, positron annihilation lifetime spectroscopy and Doppler broadening spectroscopy (DBS). This work focused on the latter. DBS …

    uiuc Repository record

  17. High energy pair production of muons in electron-positron annihilation at center of mass energies ranging from 130 to 183Gev

    Smith, Bryan R. (Bryan Richard), 1971-Massachusetts Institute of Technology1998

    Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 1998.

    mit Repository record

  18. A calorimetric measurement of the strong coupling constant in electron-positron annihilation at a center-of-mass energy of 91.6 GeV

    González Martirena, SaúlMassachusetts Institute of Technology1994

    Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 1994.

    mit Repository record

  19. The one loop radiative corrections to W pair production in electron positron annihilation in the supersymmetric extension of the Salam-Weinberg model of the electroweak interactions.

    Alam, S.Carleton University1992

    carleton Repository record

  20. Growth temperature and microstructural differences in hydrogenated amorphous silicon deposited on glass substrates

    Minani, EvaristeDepartment of Physics2002

    … inclusions. Using a combination of positron annihilation and X-ray diffraction techniques, the microstructure of hydrogenated amorphous silicon grown by hot wire chemical vapour deposition on glass substrates at different substrate temperatures ranging between 300°C and 500 °C is …

    cape-town Repository record

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