Observation of radioactive background in the OSO-7 gamma ray monitorThe counting rate as measured by the gamma ray monitor on the OSO-7 satellite, covering the energy range 0.3-10 MeV, during a sixteen month period (October 1971-December 1972) was considerably higher than expected from balloon data previously reported. Dyer et al. (1971) have shown the importance of activation in satellites for diffuse gamma flux measurements. The OSO-7 spectra exhibit strong, complex line structure, especially between 400 keV and 900 keV, and several identifications can be made consistent with the model of Dyer et al. The spectral structure and time variations are presented which must be explained by any activation model.
Document ID
19760043992
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Dunphy, P. P. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Forrest, D. J. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Chupp, E. L. (New Hampshire, University Durham, N.H., United States)
Dyer, C. S. (NASA Goddard Space Flight Center Greenbelt, Md., United States)