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| Publications |
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Fragmentation of positronium in collision with He atoms
Positronium scattering from atoms and molecules
Near-threshold ionization by positron impact
Near-threshold ionization of He and H2
by positron impact
Low-energy positron beams - origins, developments and applications
A field-assisted moderator for low-energy positron beams
The energy dependence of positronium formation in gases
Positronium formation cross sections in the inert gases
Total scattering cross sections for low-energy positrons
in the molecular gases H2 , N2
, CO2 , O2 and CH2
Measurements of low-energy positron/electron-Ne and positron-Ar
total scattering cross sections
A determination of positron mobilities in low-density gases
Experimental studies of positrons scattering in gases
Effect of an electric-field on ps formation in gaseous CO2
A proposed source of atomic hydrogen suitable for the measurement
of total and partial scattering cross sections
Applications of accelerator-based low-energy positron beams in
atomic physics
Positron and electron impact double ionisation of helium
Double ionization of noble gases by positron and electron impact
Antihydrogen production in collisions of antiprotons with excited
states of positronium
The physics of low-energy positron collisions
Positron impact phenomena
Collision phenomena involving positronium
Positronium formation in the heavier noble gases in the
presence of a static electric field
The production of low-energy positrons and positronium
Antihydrogen Physics
Possibilities for antihydrogen formation by antiproton-positronium
collisions
Antihydrogen from antiproton positronium collision
'Deutch, Bernie Irwin'
Antihydrogen synthesis by collisions between antiprotons and positronium
atoms
Possible antihydrogen formation in antiproton-positronium
reactions: where we've been and where we're going
Rotational excitation and momentum-transfer in slow positron-molecule
collisions
Elastic positron-helium scattering near the positronium formation
threshold
Angular-correlation studies of positron-annihilation in the noble-gases
Evidence for ps formation in spurs in high-density gaseous CO2
Free positron-annihilation in gases under the influence
of a static electric-field
An experiment to measure the radiative lifetime of the 2p state
of positronium
On the formation of excited state positronium in vacuum by positron
impact on untreated surfaces
Antihydrogen production by positronium antiproton collisions in
an ion trap
Antihydrogen by positronium-antiproton collisions
Antihydrogen synthesis by the reaction of antiprotons with excited-state
positronium atoms
Differential cross-section measurements in positron-argon
scattering
Positron-argon elastic, positronium formation and ionising collisions
at 60ş
An electrostatic beam for positron-gas scattering measurements
Positronium beam production and positronium scattering from molecular
hydrogen
Ps beam production and scattering from gaseous targets
Positronium beam scattering from atoms and molecules
Low energy positron-argon elastic scattering at 30o
The effect of forward-angle scattering on positronium-gas total
cross sections
The interactions of positrons with gaseous atoms and molecules
Total cross-sections for the scattering of positrons by helium,
neon and argon at intermediate energies
Positronium and positronium ions
Experimental aspects of positron and positronium physics
Early experiments with slow positrons in atomic physics
Positron lifetime spectra for gases
The temperature-dependence of free positron lifetimes and
positronium fractions in gaseous CO
On the annihilation rate of thermalized free positrons in gases
Antihydrogen production and precision experiments - The ATHENA
collaboration
Antihydrogen production and precision experiments
Correlations between cross-sections and threshold energies for
positronium formation and direct ionization
Correlations between cross sections and threshold energies for
positronium formation and direct ionization
Comment on the density and electric-field dependence of
the positronium fraction in gaseous methane
The effect of laser annealing of thin W(100) films on positron
transmission reemission properties
Positron-impact ionization of atomic-hydrogen
Positron dynamics in surface-charged solid argon
Single and double ionization of neon, krypton and xenon
by positron impact
Positron impact ionisation of atoms
An electrostatic system for investigating positron-atom collisions
Ionization by positrons and electrons of Ar at zero degrees
Differential ionization studies at forward angles
Doubly differential cross sections for collisions of 100eV positrons
and electrons with argon atoms
Double-differential cross sections for collisions of positrons
with argon atoms
Triply differential study of positron impact ionization of H2
Electron ejection from ionising positron-atom collisions
Electron-capture-to-the-continuum by positron impact
Triply differential ionization cross-section of H2 by 50 eV impact-energy
positrons
A parallel plate analyser with time focussing
Electron ejection by positron impact ionization
Differential ionization experiments on positron-atom scattering
Excited state positronium formation in low density gases
Density dependence of positron annihilation and positronium formation
in H2 at temperatures between 77 and 297K
On the production of a timed positronium beam by positron-gas
scattering
The production of collimated beams of o-Ps atoms using charge
exchange in positron-gas collisions
Observation of simultaneous positronium formation and excitation
in positron-CO2 scattering
The production of a timed tunable beam of positronium atoms
Recent advances in the characterization of a Ps beam
Positronium beam production by positron-gas interactions
Ionization of CO2 by positron impact
Positronium beams and surfaces
Near-threshold effects in positron-O2 scattering
Near threshold effects in positron-atom (molecule) scattering
Positron and positronium collisions
Collsions of positrons and positronium with atoms and molecules
Positron scattering on atoms and molecules near the positronium
threshold
Of atomic collsions with positrons and positronium
Of positron scattering and annihilation from molecules
Semiempirical approach to positron annihilation in molecules
On the annihilation of positrons in binary encounters with molecules
From positron to positronium scattering
Collisions involving antiparticales
Positrons and Positronium Collisions
Atomic and molecular physics with positrons and positronium
Scattering of positrons and positronium by atoms and molecules
Total positron-impact ionization and positronium formation from
the noble gases
Positron and positronium interactions with atoms and molecules
Positronium induced collisions
Production of collimated positronium from molecular nitrogen
A new timed slow positron beam
Field assisted positron moderation by surface charging of rare-gas
solids
Studies of positron moderation in surface charged rare-gas solids
Experimental demonstration of hydrogen formation following the
interaction of protons with positronium
Hydrogen formation by proton impact on positronium
Threshold and channel-coupling effects in positron elastic scattering
from noble gases
Positron scattering on atoms and molecules near the positronium
threshold
Ejected-electron energy spectra in low energy positron-argon collisions
Electron-emission spectra in low-energy positron-atom collisions
Total ionization cross sections of He, H2
and Ar by positron impact
Threshold effects in positron scattering on noble gases
Ionization of He, Ar and H2 by positron
impact at intermediate energies
A gated positron beam incorporating a scattering cell and novel
ion extractor
Single ionization by positron impact
Fragmentation of CH3F by positron impact
Fragmentation and ionization of CH3F by positron and
electron impact
Fragmentation and ionization of CH3Cl by positron impact
Double ionization of Noble Gases by Positron Impact
Ionization and fragmentation of CCl2F2, CClF3, CF4, and CHF3 by
positron impact
Rare gas solid moderator for Ps beam at UCL
Ionization in collisions between 30-1000 keV antiprotons
and atomic-hydrogen
Ionization of rare gases by particle-antiparticle impact
Thermal-activation of positronium from thin Ag(100) films in backscattering
and transmission geometries
Measurement of the positronium formation potential for Ag(100)
Positronium formation from silver
The ORELA positron-scattering program - progress in the
first energy-analysis experiments
Crossed-beam measurement of binding-energies of positronium compounds
- a preliminary-study
Measurement of positron mobility in silicon
Energy dependence of the total ionization and positronium formation
cross-sections in e+ - Xe collisions
Empirical scaling of positron- and electron-impact ionization
cross sections
Positronium formation from Ar and Xe
Investigation into the energy dependence of the annihilation cross-sections
for Ne and Xe below the positronium formation threshold
Correlations between cross sections and threshold energies
for positronium formation
Correlations between ionization cross-sections and threshold energies
in electron-, positron- proton- and antiproton-atom collisions
On the normalization of the positron-impact direct ionization
cross-section in the noble gases
Positron lifetime parameters in H2, CO2
and CH4
The annihilation of positrons and positronium formation in gaseous
kr and xe
Low energy positron transmission measurement from thin single-crystal
W foil
Experimentation with thin single crystal-W foils as slow positron
transmission mode moderators
Single-crystal nickel foils as positron transmission-mode moderators
Diagnostics of a positronium beam
The new magnetically confined positron beam at UCL
Positronium beam technology
Positronium interactions in atomic physics
Positronium-argon scattering |