It has been widely recognized that the "new physics" results from a high
energy collider are related to the detector capabilities, and that
future detec- tors must solve the problems presented by the new
environment. Vertex detectors, in particular, will have to sustain
enormous rates, have a great resistance to radiation damage, while
retaining good spatial accuracy. Promising technologies are emerging,
and gaseous detectors are improving: this workshop was intended as a
point of reference towards future detectors, with particular emphasis on
experimental results achieved so far. We wish to thank the Ettore
Majorana Center for the splendid hospitality in Erice; and the
secretaries of the conference, R. Nania and G. Anzivino for their hard
work in collecting and organizing these proceedings. F. Villa Stanford
Linear Accelerator Center Stanford University v CONTENTS Tracking at 1
Te V A. Seiden ..... 1 B Physics at PEP and SLC A. Seiden ........ . 19
The MARK II Vertex Detectors: Status and Prospects J. Jaros 37 The
Mark-J Vertex Detector H. Anderhub et al., presented by M. Bourquin 71 A
Modified Time Expansion Chamber as a Vertex Detector et al., presented
by C. Del Papa . . . . . . . . . 95 G. Bari Operation of Multidrift
Tubes with Dimethyl Ether R. BoucHer et al., Presented by F. SauH . .
...... 101 Results From the MACI Vertex Chamber H. N. Nelson . . . . . .
. . . . . ........... . 115 Wire Chamber Aging and Wire Material M. Atac
............. .