Zero Cross-Over Timing with Coaxial Ge(Li) Detectors

The performance of zero cross-over timing systems of the constant fraction or amplitude rise time compensated type using coaxial Ge(Li) detectors is analyzed with special attention to conditions that compromise their energy-independence advantage. The outcome is verified against existing experimental results, and the parameters that lead to minimum dispersion, as well as the value of the dispersion to be expected, are given by a series of charts.