A large international collaboration from the high energy astrophysics community has proposed the Tracking and Imaging Gamma Ray Experiment (TIGRE) for future space observations. TIGRE will image and perform energy spectroscopy measurements on celestial sources of gamma rays in the energy range from 1 to 100 MeV. This has been a difficult energy range experimentally for gamma ray astronomy but is vital for the future considering the recent exciting measurements below 1 and above 100 MeV. TIGRE is both a double scatter Compton and gamma ray pair telescope with direct imaging of individual gamma ray events.
Multi‐layers of Si strip detectors are used as Compton and pair converters CsI(Tl) scintillation detectors are used as a position sensitive calorimeter. Alternatively, thick GE strip detectors may be used for the calorimeter. The Si detectors are able to track electrons and positrons through successive Si layers and measure their directions and energy losses. Compton and pair events are completely reconstructed allowing each event to be imaged on the sky. TIGRE will provide an order‐of‐magnitude improvement in discrete source sensitivity in the 1 to 100 MeV energy range and determine spectra with excellent energy and excellent angular resolutions. It’s wide field‐of‐view of π sr permits observations of the entire sky for extended periods of time over the life of the mission.
Space Science Center, Physics
AIP Conference Proceedings
Digital Object Identifier (DOI)
Tracking and imaging gamma ray experiment (TIGRE) for 1 to 100 MEV gamma ray astronomy Alpar, A. and Bhattacharya, D. and Buccheri, R. and Dotson, K. and Forrest, D. and Johnson, W. N. and Kanbach, G. and Kiziloglu, U. and Kroeger, R. and Kurfess, J. and McConnell, M. and Ögelman, H. and O’Neill, B. and O’Neill, T. and Owens, A. and Pi, B. and Pierce, B. and Ryan, J. and Sacco, B. and Simnett, G. and Tümer, T. and Wheaton, W. and White, R. S. and Zych, A., AIP Conference Proceedings, 304, 701-705 (1994), DOI:http://dx.doi.org/10.1063/1.45559
© 1994 American Institute of Physics