The JETSET barrel drift-tube (“straw”) chamber

Abstract A charged-particle tracking chamber consisting of about 1400 individual drift tubes (“straws”) has been designed and built for the experiment PS202 (JETSET), installed in the antiproton storage ring LEAR at CERN. The design considerations, the development of several new techniques, and the construction of the detector are described. A complex system of front-end electronics, specially developed for the chamber, provides drift-time as well as charge-division measurements. Calibration procedures for obtaining three-dimensional space information for charged-particle tracks are described. The performance of the chamber achieved in the actual experiment is discussed.