Measurements of Electron Drift and Diffusion Properties in a Large Cylindrical Drift Chamber (TPC) With Parallel Electric and Magnetic Fields

摘要

This work describes measurements on the drift of electrons in gases, using the TPC90, the prototype of the ALEPH Time Projection Chamber. Tracks which were created by UV-Laser ionization have been drifted over distances of up to 1.3 m in parallel electric and magnetic fields. Electron drift properties have been systematically measured as a function of these, in several gas mixtures. (ERA citation 13:030967)