Abstract
We present Monte Carlo simulations of two astronomical gamma-ray telescope concepts based on the ThreeDimensional Track Imager (3- DTI) detector. The 3-DTI consists of a time projection chamber with two-dimensional, crossedstrip micro-well detector readout. The full three- dimensional reconstruction of charged-particle tracks in the gas volume is obtained from transient digitizers, which record the time signature of the charge collected in the wells of each strip. Such detectors hold great promise for advanced Compton telescope (ACT) and advanced pair telescope (APT) concepts due to the very precise measurement of charged particle momenta that is possible (Compton recoil electrons and electron-positron pairs, respectively). We have investigated the performance of baseline ACT and APT designs based on the 3-DTI detector using simulation tools based on GEANT3 and GEANT4, respectively. We present the expected imaging, spectroscopy, polarimetry, and background performance of each design.
Department
Space Science Center, Physics
Publication Date
2006
Journal Title
Nuclear Science Symposium Conference record, 2006. IEEE
Publisher
IEEE
Digital Object Identifier (DOI)
10.1109/NSSMIC.2006.356186
Document Type
Conference Proceeding
Recommended Citation
Bloser, P.F.; McConnell, M.L.; Ryan, J.M.; Barbier, L.M.; Centa, A.; Hunter, S.D.; Krizmanic, J.F.; Link, J.T.; de Nolfo, G.A.; Seunghee Son, "Simulated Performance of 3-DTI Gamma-Ray Telescope Concepts," Nuclear Science Symposium Conference Record, 2006. IEEE , vol.1, no., pp.411,416, Oct. 29 2006-Nov. 1 2006
Rights
©2006 IEEE