Northrop Grumman Systems Corporation - Los Angeles CA
International Classification:
G01T 1/24 G01T 1/161
US Classification:
25037006, 25036306
Abstract:
A combined format gamma-ray detector (D) for measuring impinging gamma-rays () includes an active upper level coded aperture detector plane member () that is suitable for detecting an impinging gamma-ray (). An active lower level gamma ray detector plane member () that is spaced apart from the upper level coded aperture () detects an impinging gamma-ray (). At low gamma-ray energies, the combined format gamma-ray detector device (D) operates as a conventional coded aperture system and at higher gamma-ray energies, the combined format gamma-ray detector device operates as a Compton scattering detector device.
Stephen Gottesman (1952-1956), Tovia Gilpin (1954-1958), Jo Jackson (1973-1977), Lois Frye (1984-1988), Matthew Weiner (1967-1971), David Weinberger (1975-1979)