Announcing an AIP-SA Members'Lecture
AIP Student Night
Tuesday 30th June 1998 at 7.30pm in the
KERR-GRANT lecture theatre
Physics Building, The University of Adelaide
Superelastic Electron Scattering
Kym Stockman
Flinders University
Abstract
Superelastic scattering experiments have been performed on potassium
atoms. A laser beam is used to excite potassium atoms from the ground
state to an excited state. Electrons are scattered from these excited
atoms and those electrons which gain energy in the collision are
detected. These superelastic electrons carry information about the
orientation and alignment parameters which describe the scattering
process. These parameters can then be compared to theoretical models.
Thin Polymeric Film Adhesives
Ben Francis
University of South Australia
Abstract
Pressure Sensitive Adhesives (PSA's) are a form of contact adhesive
produced by a thin layer of viscoelastic polymer fluid. The most
familiar example is ordinary sticky-tape. In contrast to elastic,
"solid" body adhesion, PSA adhesion relies almost entirely on
the dissipation of large amounts of energy in deforming the fluid
dynamically. This simple picture is complicated, however, by many
secondary effects including de-wetting, cavitation and bridging
fibrillation. These specific processes are being examined when two
rigid substrates bound together via a polymer fluid are separated
under different conditions.
Studying the Highest Energy Particles in Nature
Christopher Wilkinson
University of Adelaide
Abstract
In 1991 a subatomic particle with an energy in excess of 50 Joules
(3x1020 eV) was detected arriving from space. This is the
most energetic particle ever observed. However despite over thirty
years of observations we still do not know how such energetic
particles are created or where they originate from. The High
Resolution Fly's Eye is is a new detector with a collection area of
3000 km2 which seeks to try to resolve these long standing
questions. This talk will cover the motivation and discuss my work on
this project.
Everyone is welcome at a supper provided by the AIP after the meeting.
