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Title: Vertex detectors

The purpose of a vertex detector is to measure position and angles of charged particle tracks to sufficient precision so as to be able to separate tracks originating from decay vertices from those produced at the interaction vertex. Such measurements are interesting because they permit the detection of weakly decaying particles with lifetimes down to 10{sup {minus}13} s, among them the {tau} lepton and charm and beauty hadrons. These two lectures are intended to introduce the reader to the different techniques for the detection of secondary vertices that have been developed over the past decades. The first lecture includes a brief introduction to the methods used to detect secondary vertices and to estimate particle lifetimes. It describes the traditional technologies, based on photographic recording in emulsions and on film of bubble chambers, and introduces fast electronic registration of signals derived from scintillating fibers, drift chambers and gaseous micro-strip chambers. The second lecture is devoted to solid state detectors. It begins with a brief introduction into semiconductor devices, and then describes the application of large arrays of strip and pixel diodes for charged particle tracking. These lectures can only serve as an introduction the topic of vertex detectors. Time and spacemore » do not allow for an in-depth coverage of many of the interesting aspects of vertex detector design and operation.« less
Authors:
Publication Date:
OSTI Identifier:
81034
Report Number(s):
SSCL-Preprint-553; CONF-9207140-8
ON: DE95011156; TRN: 95:017110
DOE Contract Number:
AC35-89ER40486
Resource Type:
Conference
Resource Relation:
Conference: Stanford Linear Accelerator Center (SLAC) summer institute on particle accelerators: third family and the physics of flavor, Stanford, CA (United States), 13-24 Jul 1992; Other Information: PBD: Jul 1992
Research Org:
Superconducting Super Collider Lab., Dallas, TX (United States)
Sponsoring Org:
USDOE, Washington, DC (United States)
Country of Publication:
United States
Language:
English
Subject:
44 INSTRUMENTATION, INCLUDING NUCLEAR AND PARTICLE DETECTORS; PARTICLE IDENTIFICATION; RADIATION DETECTORS; LECTURES; ELEMENTARY PARTICLES; PARTICLE TRACKS; TAU PARTICLES; LIFETIME; SCINTILLATION COUNTERS; SEMICONDUCTOR DETECTORS; PHOTOGRAPHIC FILM DETECTORS; MASS; WEAK PARTICLE DECAY; PARTICLE PRODUCTION; MEASURING METHODS; PROPORTIONAL COUNTERS; OPERATION; CHARGE-COUPLED DEVICES; PHYSICAL RADIATION EFFECTS; HIGH ENERGY PHYSICS