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Proceedings Paper

Development of large-area drift chambers for high-energy gamma-ray astrophysics
Author(s): 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
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Paper 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.

Paper Details

Date Published: 21 September 1994
PDF: 11 pages
Proc. SPIE 2305, Gamma-Ray Detector Physics and Applications, (21 September 1994); doi: 10.1117/12.187255
Show Author Affiliations
Reshmi Mukherjee, NASA Goddard Space Flight Ctr. (United States)
D. L. Bertsch, NASA Goddard Space Flight Ctr. (United States)
Rajani Cuddapah, NASA Goddard Space Flight Ctr. (United States)
Brenda L. Dingus, NASA Goddard Space Flight Ctr. (United States)
Joseph A. Esposito, NASA Goddard Space Flight Ctr. (United States)
Carl E. Fichtel, NASA Goddard Space Flight Ctr. (United States)
Robert C. Hartman, NASA Goddard Space Flight Ctr. (United States)
Stanley D. Hunter, NASA Goddard Space Flight Ctr. (United States)
D. J. Thompson, NASA Goddard Space Flight Ctr. (United States)


Published in SPIE Proceedings Vol. 2305:
Gamma-Ray Detector Physics and Applications
Elena Aprile, Editor(s)

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