Abstract

Abstract-The COMPTEL gamma-ray telescope has been operating in low Earth orbit for six years, since the launch of the Compton Gamma-Ray Observatory in April 1991. Comparisons of data for different orbits and epochs show evidence of activation on time scales from minutes (27Mg, q,2=9.5 min) to years C2Na, q&.58 yr). The activation is correlated with both the orbital altitude and solar cosmic-ray modulation. Because it requires coincident measurements in two different detectors, COMPTEL is most susceptible to instrumental background events in which two or more photons are produced simultaneously.

Publication Date

7-1997

Journal Title

High Conference on the Energy Radiation Background in Space, 1997.

Publisher

IEEE

Digital Object Identifier (DOI)

10.1109/CHERBS.1997.660241

Document Type

Conference Proceeding

Rights

c 1998 IEEE

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