Gamma ray sources in the 1 to 30 MeV range

Results are presented from three possible astronomical sources of gamma rays in the 1 to 30 MeV range observed with the UCR double Compton gamma ray telescope in 1979 and 1980. The three locations, the Vela region, the Galactic center region, and the strong X-ray galaxy Centaurus A were analyzed for their spatial and spectral characteristics. In the analysis, 5 different imaging techniques were developed. A comparison of their imaging qualities as well as their limiting factors is discussed. Azimuthal distributions of the incident gamma rays were measured at float altitudes in the Southern Hemisphere which show an enhancement originating from the south. The magnitude and direction of the azimuthal variation is described. The digital hardware and computer software onboard the UCR double Compton gamma ray telescope are described as well as some analysis on its imaging capabilities.