Transition radiation from relativistic electrons in periodic radiators

Michael L. Cherry, The Enrico Fermi Institute
Gernot Hartmann, The Enrico Fermi Institute
Dietrich Müller, The Enrico Fermi Institute
Thomas A. Prince, The Enrico Fermi Institute


The generation and detection of transition radiation have been studied in a series of experiments with electrons from 1 to 15 GeV at SLAC and at the Cornell Synchrotron. Periodic radiators, consisting of thin plastic foils stretched in air at constant spacings, were used, and proportional chambers filled with krypton or xenon served as detectors. A detailed discussion of the theoretical predictions is given, and the measurements are systematically compared with the predictions by varying the most critical parameters, such as configuration of radiators and detectors, and energy of the electrons. In general, good agreement between theory and experiment has been found. On the basis of these results, the criteria are summarized under which transition radiation can readily be observed. © 1974 The American Physical Society.