The proceedings volume includes about 50 invited talks by experts, covering advances in the following fields of instrumentation for colliding beam physics: 1. Tracking; 2. Vertex detectors; 3. Particle identification; 4. Calorimetry; 5. Electronics and trigger systems; 6. Interactions between detectors and accelerators in addition to reviews about the most advanced ideas in these fields.

The proceedings volume includes about 50 invited talks by experts, covering advances in the following fields of instrumentation for colliding beam physics: 1. Tracking; 2. Vertex detectors; 3. Particle identification; 4. Calorimetry; 5. Electronics and trigger systems; 6. Interactions between detectors and accelerators in addition to reviews about the most advanced ideas in these fields.

With the advent of the Superconducting Super Collider and other new technologies, coupled with the development of particle astrophysics and other non-accelerator based physics, research in high energy particle physics in the nineties promises to break into new and exciting frontiers. To chart the directions and opportunities for this new decade, the 1990 Summer Study on High Energy Physics was organized in Snowmass, Colorado. Like previous Snowmass Summer Studies, it plays a key role in shaping research directions and in drawing the particle physics community together.This book of the proceedings examines the full spectrum of important scientific issues and opportunities in high energy particle physics in the decade of the 1990's, including research at existing and anitcipated hadron-hadron, e+e-, and ep colliders; research at fixed-target facilities; the scientific potential of possible new facilities such as B factories; particle astrophysics and non-accelerator based physics; and accelerator and detector initiatives. It also discusses the physics and technical aspects of the initial Superconducting Super Collider experimental program.This volume, therefore, offers a captivating glimpse into the future of high energy physics, and makes essential reading for all physicists interested in assessing the exciting new research opportunities the future technologies would bring.

Calorimetry is rapidly gaining recognition as a primary detection technique for high energy, high luminosity machines. Calorimetry is fast developing; old techniques, like scintillator plates or liquid argon, are defined to achieve their ultimate performance. New techniques, like warm liquids or scintillating fibers, are tested in several setups. The conference is intended to review the advancement of calorimetry and plans for new R&D.