aRutherford Appleton Laboratory, Chilton, Didcot, Oxon, OX11 0QX, England
bH.H. Wills Physics Laboratory, University of Bristol, Royal Fort, Tyndall Avenue, Bristol, BS8 1TL, England
Abstract:
Rectangular drift chamber cells have been constructed and tested using an electron test beam facility at DESY. A systematic study of the time, spatial, energy and double track resolutions with a 100 MHz FADC readout is presented. The spatial resolution is 100 to 120 μm and the double track resolution is 2.5 mm with an Ar:C2H6 (50:50) gas mixture at atmospheric pressure. The
resolution obtained corresponds to 6% resolution for a 72-layer chamber.