This work focuses on the development of room temperature semiconductor detectors for gamma ray detection and spectroscopy. Current semiconductor devices require cryogenic cooling to obtain reasonable spectroscopic information, which proves to be inconvenient for portable applications.
Compound semiconductors lack sufficient hole mobility to provide spectroscopic information.
The approach taken at Michigan is to develop techniques which are insensitive to hole motion in deriving the spectroscopic information. Accepted for publication in Nucl. This work supports a DOE Phase II SBIR with the goal of developing a portable gamma ray imaging device. Michigan's role in the project is to devise techniques to improve the response of a pinhole imager, and to develop more advanced schemes, such as multiple aperture devices, to improve resolution and sensitivity. The goal of this work is to explore the potential of Compton scatter imaging for nuclear medicine.