  High purity germanium (HPGe) crystals will be used for the MAJORANA
DEMONSTRATOR, where they serve as both the source and the detector for
neutrinoless double beta decay. It is crucial for the experiment to understand
the performance of the HPGe crystals. A variety of crystal properties are being
investigated, including basic properties such as energy resolution, efficiency,
uniformity, capacitance, leakage current and crystal axis orientation, as well
as more sophisticated properties, e.g. pulse shapes and dead layer and
transition layer distributions. In this paper, we will present our measurements
that characterize the HPGe crystals. We will also discuss our simulation
package for the detector characterization setup, and show that additional
information can be extracted from data-simulation comparisons.
