Dj. Thompson et al., CALIBRATION OF THE ENERGETIC GAMMA-RAY EXPERIMENT TELESCOPE (EGRET) FOR THE COMPTON GAMMA-RAY OBSERVATORY, The Astrophysical journal. Supplement series, 86(2), 1993, pp. 629-656
Calibration of the Energetic Gamma-Ray Experiment Telescope (EGRET) on
the Compton Gamma-Ray Observatory involves simulation, experimental c
alibration, and verification in flight. The principal properties of th
e instrument which have been determined as a function of energy and an
gle are the effective area, the angular resolution (point spread funct
ion), and the energy resolution (dispersion).