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BaBar Prototype II Drift Chamber

1997 Operations

Last updated: 13 August 2001 by Michael Kelsey


Introduction

Prototype II was operated in 1997 and 1998 in two different ways:

  • Special-purpose pre-amplifier cards and rack-mounted TDC and FADC modules
  • Pre-production versions of the BaBar ELEFANT chips
This directory contains descriptions of the data taken in both configuration, along with results and pictures. These files were moved here from the main Prototype II Web area to make room for new documentation and results.

Pre-amp board runs

ELEFANT IC test runs

Sample Cosmic Events

Resolution Plots

Run 1437
Sense voltage at 2020, discriminator threshold at 180mV;
minimum resolution of 90mu, average resolution of 124mu,
plotted as a function of drift distance

Run 1438
Sense voltage at 1960, discriminator threshold at 180mV; minimum
resolution of 95mu, average resolution of 131mu,
plotted as a function of drift distance

For comments, questions or changes to this page contact Michael Kelsey mailb2.gif (2499 bytes)
Information Expires: 31 December 2001

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