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Calibration of the Egret High-Energy Gamma-Ray Telescope in the Range 20-10,000 MeV with a Tunable Beam of Quasi-Monoenergetic Gamma Rays at SLAC |
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| Authors: | Thompson D J Bertsch D L Favale A Fichtel C E Hartman R C Hofstadter R Hughes E B Hunter S D Hughlock B W Kanbach G O Kniffen D A Lin Y C Mattox J R Mayer-Hasselwander H Nolan P L Pinkau K Rothermel H Schneid E Sommer M Walker A H |
| Affiliation: | NASA Goddard Space Flight Center, Greenbelt, Maryland 20771; |
| Abstract: | The EGRET telescope, one of the instruments to be carried on NASA's Gamma Ray Observatory, is designed to explore the high-energy portion (20 - 24,000 MeV) of the electromagnetic spectrum. A calibration source of ?-rays over this wide energy range has been used at SLAC, together with an appropriate set of intensity-monitoring instruments, to conduct a calibration of the EGRET telescope over this energy range for the full telescope aperture. The calibration method and an overview of the results are described. |
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