Development of large-area drift chambers for high-energy gamma-ray astrophysics

Reshmi Mukherjee; D. L. Bertsch; Rajani Cuddapah; Brenda L. Dingus; Joseph A. Esposito; Carl E. Fichtel; Robert C. Hartman; Stanley D. Hunter; D. J. Thompson

doi:10.1117/12.187255

21 September 1994 Development of large-area drift chambers for high-energy gamma-ray astrophysics

Reshmi Mukherjee, D. L. Bertsch, Rajani Cuddapah, Brenda L. Dingus, Joseph A. Esposito, Carl E. Fichtel, Robert C. Hartman, Stanley D. Hunter, D. J. Thompson

Author Affiliations +

Proceedings Volume 2305, Gamma-Ray Detector Physics and Applications; (1994) https://doi.org/10.1117/12.187255
Event: SPIE's 1994 International Symposium on Optics, Imaging, and Instrumentation, 1994, San Diego, CA, United States

Abstract

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.

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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); https://doi.org/10.1117/12.187255

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