1. Preface

   • L. A. Parcell

   EditorialNotes Pages: N8 - N8

2. Positron-impact ionization of atoms: Experiments

   • Wilhelm Raith

   Invited Papers Pages: 3 - 16

3. Inner-shell ionization by positron and electron impact

   • Hans Schneider
   • Ingo Tobehn
   • Rainer Hippler

   Invited Papers Pages: 17 - 26

4. Transfer and ionization in collisions of positrons with atoms

   • Jim McGuire
   • Jack C. Straton

   Invited Papers Pages: 27 - 32

5. K-shell ionisation of atoms by positron and electron impacts

   • S. P. Khare

   Invited Papers Pages: 33 - 50

6. Measurements of positronium formation cross sections for positron-ar and-K scattering

   • T. S. Stein
   • W. E. Kauppila
   • S. Zhou

   Invited Papers Pages: 53 - 63

7. Positron scattering by the noble gases

   • Mary T. McAlinden
   • H. R. J. Walters

   Invited Papers Pages: 65 - 83

8. Experimental investigations of positron differential elastic scattering

   • W. E. Kauppila
   • T. S. Stein

   Invited Papers Pages: 87 - 98

9. Positron scattering from alkalis and noble gases—Suggestions for testing theoretical predictions

   • K. Bartschat
   • R. P. McEachran
   • A. D. Stauffer

   Invited Papers Pages: 99 - 108

10. Resonances in positron-atom scattering

    • Y. K. Ho

    Invited Papers Pages: 109 - 130

11. Recent advances in the characterization of a Ps beam

    • G. Laricchia
    • N. Zafar
    • T. C. Griffith

    Invited Papers Pages: 133 - 145

12. Solid neon moderated electrostatic or magnetic positron beam

    • M. Weber
    • A. Schwab
    • K. G. Lynn

    Invited Papers Pages: 147 - 157

13. Low energy positron scattering from atoms in and on solids observed with low energy positron diffraction and reemission microscopy

    • Karl F. Canter

    Invited Papers Pages: 159 - 171

14. Antihydrogen synthesis: A progress report

    • B. I. Deutch

    Invited Papers Pages: 175 - 191

15. Trapping positrons for low energy antihydrogen production

    • B. L. Brown
    • L. Haarsma
    • K. Abdulah

    Invited Papers Pages: 193 - 201

16. Measurements of total cross sections for positron-K and-Rb scattering

    • T. S. Stein
    • W. E. Kauppila
    • S. Zhou

    Contributed Papers Pages: 205 - 212

17. The new magnetically confined positron beam at UCL

    • Z. Zafar
    • G. Laricchia
    • T. C. Griffith

    Contributed Papers Pages: 213 - 215

18. Electron emission spectra in low energy positron-atom collisions

    • J. Moxom
    • G. Laricchia
    • A. Kover

    Contributed Papers Pages: 217 - 222

19. An experiment to measure the radiative lifetime of the 2P state of positronium

    • D. J. Day
    • G. Laricchia
    • M. Charlton

    Contributed Papers Pages: 223 - 228