The Central Drift Chamber for GlueX

Performance of the SLD Central Drift Chamber

We reportfor thefirsttimeon theperformanceof theSLD Central Drift Chamber (CDC) at SLC, which has been recordingdatasince 1992. The low mass of the chamber and the use-of a gas characterized by both a low drift velocity and low diffusion constant help to minimize the drift-distance measurement errors. We describe some of the calibrations and corrections applied to the dam, and report on the res...

The BaBar Drift Chamber

The central drift chamber for the BaBar detector at the PEP-II Bfactory at SLAC is a cylindrical chamber with a length of 280 cm and outer radius of 81 cm. It consists of 40 layers of small hexagonal cells arranged in 10 axial and stereo super-layers. In order to minimize multiple scattering, light materials are used for the mechanical structure, and the gas mixture is Helium based. The pulse-h...

New Drift Chamber for - the Mark Ii

A new cylindrical drift chamber is being constructed for the Mark lI detector for use at the new SLAC Linear Collider. The design of the new chamber is based on a multi-sensewire cell of the jet-chamber type. In addition to driitime measure men@ pulse height measurements from the sense wires will provide electron-hadron separation by dE/dz. The design and construction of the chamber, tests of p...

The BaBar drift chamber project

The BaBar Drift Chamber is now under construction. We review its design, the progress in the construction of the components, the plan for assembly and stringing and we present test results obtained with a prototype exposed at SLAC to cosmic rays. We also report on projected dE/dx performance from beam tests done with a chamber with a different cell design. ( 1998 Published by Elsevier Science B...

Drift Chamber Vertex Detectors for Slc/lep*