This volume contains the invited papers and selected contributed papers
presented at the biennial International Symposium on ELECTRON COLLISIONS
WITH MOLECULES, CLUSTERS AND SURF ACES held at Royal Holloway,
University of London from 29th to 30th July, 1993. This Symposium was a
Satellite Meeting of the XVIII International Conference on the Physics
of Electronic and Atomic Collisions (ICPEAC) and follows a 16 year
tradition of Satellite Conferences in related areas of collisions held
in association with previous ICPEAC's. In the past each of these
electron -molecule symposia covered the broad field of electron-molecule
scattering at rather low energies, but also included hot topics. This
time as well as covering the whole field, well defined electron
collisions with clusters and with particles in the complex potential of
a surface were emphasized. Not many details are known about such
collisions, although they become more and more important in surface
characterisation, plasma-wall interactions, electron induced desorption
and reorganisation of adsorbed particles. Recently, much work,
theoretical and experimental, has been devoted to electron collisions
with rather large carbon, silicon and halogen containing molecules.
These problems are of relevance in plasma assisted thin film formation
and etching of surfaces and can now be approached with advanced
theoretical methods and experimental equipment.