A number of major new accelerator facilities, which have shaped the activities of many physicists for the better part of a decade: SLC, LEP, HERA, has been completed. The new generation of high-luminosity pp supercolliders, LHC, SSC and Eloisatron (ELN), represents the great challenge of subnuclear physics. In this challenge the crucial problem is the design of a superdetector. It is clear that building the detectors will be the bottleneck for the Supercolliders. The CERN-LAA project is a concerted effort to solve the problems imposed by the harsh experimental conditions, under which the new physics has to be studied. It is conceptually and practically a unique effort. This Workshop brought together the physicists working on the LAA project and their reports are found in this volume.

This volume stresses the necessity of image processing for future high energy physics detectors (indeed the signals — 1 megabyte of data or more, every 16 nanoseconds — will have 2D-spatial-topology-like images; only the processing/decision rates are much higher). The main issues presented are: new detectors, algorithms for tracking and pattern recognition, dedicated archi-tectures, benchmarking studies on commercially avaliable machines, mixed VLSI technologies, neural networks.

For the Galvani Bicentenary Celebrations, the University of Bologna and its Academy of Sciences singled out subnuclear physics as the field of scientific research to be associated with this important event, as it would best illustrate, for the new generation of students, the challenge inherent in fundamental sciences. Subnuclear physics has represented, ever since it was born, the new frontiers of Galilean science. In his opening lecture delivered on the first day of the new academic year, Professor Antonino Zichichi analytically reviewed the basic conceptual developments and main discoveries achieved in subnuclear physics since its birth in the 20th century. Given the importance of this field of fundamental research, Professor Zichichi was invited to expand the contents of his lecture into a book, and the outcome is this volume.

The present volume is based on the proceedings of the 12th Workshop of the INFN ELOISATRON Project, held at the "Ettore Majorana" Centre for Scientific Culture (EMCSC), Erice (frapani), Sicily, Italy, in the period September 15-20, 1990. The proceedings deal with the presentation of "New Technologies for Supercolliders". Three new energy frontiers (16,40 and 200 TeV) are now opened up for the future of Subnuclear Physics. Basic problems above the Fermi-energy are crowding up: but no one knows the energy levels needed for their solution. This is why the technology for experiments with the new generation of Supercolliders needs to be pursued having in mind the problems which are of common interest in the three energy frontiers. The primary purpose of the Workshop was to contribute towards the highest energy limit in the search for new instruments and new technologies. Furthermore, the present status and performances of various detector technologies were reviewed. The possible options for a powerful apparatus whose goal would be the discovery of the top, Higgs and SUSY particles in a very high energy, high rate environment, were finally analysed. The Workshop was sponsored by the Italian National Institute for Nuclear Physics (INFN), the Italian Ministry of Education, the Italian Ministry of Scientific and Technological Research and the Sicilian Regional Government. We are thankful to the staff of EMCSC for their efficient and warm support.