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21 September 1994 Development of large-area drift chambers for high-energy gamma-ray astrophysics
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The development of large area xenon drift chambers as imaging systems for the advanced Gamma-Ray Astronomy Telescope Experiment (AGATE), sensitive in the energy range 20 MeV - 100 GeV, is presented here. AGATE is visualized as the successor to the Energetic Gamma Ray Experiment Telescope (EGRET) on the Compton Gamma-Ray Observatory, and will add to the wide range of important results currently being obtained by EGRET. Experiments were carried out with a laboratory prototype consisting of a stack of sixteen 1/2m X 1/2m active area drift chambers using both xenon and argon gas mixtures. The spatial resolution of the drift chamber stack was measured with a multi-wire readout plane using atmospheric muons traversing the active volume. A spatial resolution of about 0.23 mm was measured with drift chambers using xenon- methane gas mixtures. The experiments with the argon-isobutane gas mixtures yielded a spatial resolution of about 0.14 mm.
© (1994) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Reshmi Mukherjee, D. L. Bertsch, Rajani Cuddapah, Brenda L. Dingus, Joseph A. Esposito, Carl E. Fichtel, Robert C. Hartman, Stanley D. Hunter, and D. J. Thompson "Development of large-area drift chambers for high-energy gamma-ray astrophysics", Proc. SPIE 2305, Gamma-Ray Detector Physics and Applications, (21 September 1994);


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