Progress in Positron Annihilation

Erscheinungsjahr 2011
ISBN: 978-0-87849-208-4
Verlag: Trans Tech Publications

Buch, Englisch, 172 Seiten, Format (B × H): 170 mm x 240 mm, Gewicht: 400 g

Volume is indexed by Thomson Reuters CPCI-S (WoS).The aim of this special collection is to present recent progress made, and reflect current ideas, in research fields where positron and positronium are involved. The contents cover a wide range of positron-related research topics; including both fundamental (theoretical calculations, radiation chemistry, hyperfine interactions, positronium physics and chemistry) and applied (metal, polymer, thin film and other materials, development of experimental techniques) aspects.

Autoren/Hrsg.

Zaleski, Radoslaw

Fachgebiete

• Naturwissenschaften Physik Quantenphysik Teilchenphysik
• Technische Wissenschaften Maschinenbau | Werkstoffkunde Technische Mechanik | Werkstoffkunde Werkstoffkunde, Materialwissenschaft: Forschungsmethoden
• Naturwissenschaften Chemie Physikalische Chemie Quantenchemie, Theoretische Chemie

Inhaltsverzeichnis

Preface/Committees
I. Theoretical Calculations
Electron and Positron Densities for Mono Vacancy in SiC
Influence of Electron-Electron Correlations and Lattice Effects on Positron-Electron Enhancement Factors
The Distribution of Slowing-Down Times of Positrons Emitted from 22Na and 68Ge\68Ga Isotopes into Metals
A Computational Model for Nano Scale Cavities in the Atomic Structure of Polymer Melt and Comparisons to PALS
Calculation of Gamma Spectra for Positron Annihilation on Molecules
Investigation of Resonances in the Scattering of a Heavy ‘Positron’ by H2 that Involve Vibrationally Excited Quasi-Bound States
Positron Annihilation Characteristics in Superstrong Magnetic Fields
Similarity of Primary Processes in Tracks of Fast Electrons, Positrons, Muons and in Blobs of Moessbauer Atoms. Common Model of early Chemical Reactions for Radiation, Positron, Muon Chemistry and Moessbauer Spectroscopy
II. Positron Annihilation
Structural Characterisation of Er Implanted, Ge-Rich SiO2 Layers Using Slow Positron Implantation Spectroscopy
Defects in Martensitic Stainless Steel 1.4031 (EN) Exposed to Friction as Seen by Positron Annihilation
Point Defect Study in Fe72Al28 Alloy as a Function of Thermal Treatment by Positron Lifetime Spectroscopy
Studies on Radiation Defects in Tungsten Induced by W Self-Implantation
Positron Annihilation in Thermally Treated Co-Zr-V Metallic Glasses
Study of the e+ Distribution in a Layered Stack Sample Using Positron Lifetime Spectroscopy
III. Positronium
Localization of Positronium in Polymers
Phase Transitions in Polymers Containing Long Self-Assembled CH2 Sequences in the Side Chain: A Positron Lifetime Study
Positron Annihilation Studies in Gamma Irradiated Polyesters
Effect of Dynamic Vulcanization on the Structure and Properties of Polypropylene/Rubber Mixtures Studied by Positron Annihilation and Thermostimulated Luminescence Techniques
The Effect of Impact Pressure on Positron Lifetime in Ultra High Molecular Weight Polyethylene (PE-UHMW)Chirulen®1120
Depth of Electron Traps in N-Alkanes
Positronium in Normal Alkanes. Selected Problems
Preliminary Positron Lifetime Results on Free Volumes in Cyclodextrins
Ortho-Positronium Reactions in Water Studied by Positron Annihilation Age-Momentum Correlation
Incorporation of the Magnetic Quenching Effect into the Blob Model of Ps Formation. Finite Sized Ps in a Potential Well
Positron Annihilation in Undercooled Water and Ice
Water in Montmorillonites
Influence of Atmospheric Gases Present in the Pores of MCM-41 on Lifetime of Ortho-Positronium
IV. Experimental Methods
Precise Measurement of Hyperfine Splitting of Positronium Using the Zeeman Effect
New Experiment for the First Direct Measurement of Positronium Hyperfine Splitting with Sub-THz Light
A New Version of LT Program for Positron Lifetime Spectra Analysis
Electronic Structure via 1D Electron Momentum Densities
What Else for Improvement of Reconstructed Densities?
Reconstruction of Momentum Density Distribution from 2D ACAR Data via Maximum Entropy and Cormack Methods
Testing an Ortec Lifetime System