Title :
Testing of large area drift chambers at the Saskatchewan Accelerator Laboratory for High Energy Astrophysics
Author :
Cuddapah, R. ; Bertsch, D.L. ; Catelli, J.R. ; Dingus, B.L. ; Esposito, J.A. ; Fichtel, C.E. ; Hartman, R.C. ; Hunter, S.D. ; Mukherjee, R. ; Thompson, D.J. ; Vogt, J.M.
Author_Institution :
NASA Goddard Space Flight Center, Greenbelt, MD, USA
Abstract :
Large area (0.5 m×0.5 m) drift chambers developed for the imaging system for the Advanced Gamma Ray Astronomy Telescope Experiment (AGATE), sensitive in the energy range 20 MeV to 100 GeV, have been tested at the Saskatchewan Accelerator Laboratory (SAL) in March 1995. Testing was performed with the instrument configured in 3 different angles relative to the incident photon beam using 2 different distributed pair production material thicknesses over three different incident photon tagging energy ranges. An instrument trigger with less than 1.5 ns FWHM jitter was implemented. Spatial resolution using Argon (85%)-Isobutane (15%) for the drift gas mixture is presented herein
Keywords :
astronomical instruments; drift chambers; gamma-ray astronomy; gamma-ray detection; testing; 0.5 m; 20 MeV to 100 GeV; AGATE; Advanced Gamma Ray Astronomy Telescope Experiment; Ar-isobutane; Saskatchewan Accelerator Laboratory; imaging system; instrument trigger; large area drift chambers; pair production material; photon tagging energy ranges; spatial resolution; Astronomy; Instruments; Laboratories; Life estimation; Materials testing; Optical imaging; Performance evaluation; Production materials; System testing; Telescopes;
Conference_Titel :
Nuclear Science Symposium and Medical Imaging Conference Record, 1995., 1995 IEEE
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-3180-X
DOI :
10.1109/NSSMIC.1995.504219
