Event reconstruction in high resolution Compton telescopes

The development of germanium Compton telescopes for nuclear gamma-ray astro physics (similar to 0.2 - 20 MeV) requires new event reconstruction techniq ues to accurately determine the initial direction and energy of photon even ts, as well as to consistently reject background events. This paper describ es techniques for event reconstruction, accounting for realistic instrument /detector performance and uncertainties. An especially important technique is Compton Kinematic Discrimination, which allows proper interaction orderi ng and background rejection with high probabilities. The use of those techn iques are crucial for the realistic evaluation of the performance and sensi tivity of any germanium Compton telescope configuration.