A pair production telescope for medium-energy gamma-ray polarimetry
Abstract
We describe the science motivation and development of a pair production telescope for medium-energy (∼5–200 MeV) gamma-ray polarimetry. Our instrument concept, the Advanced Energetic Pair Telescope (AdEPT), takes advantage of the Three-Dimensional Track Imager, a low-density gaseous time projection chamber, to achieve angular resolution within a factor of two of the pair production kinematics limit (∼0.6° at 70 MeV), continuum sensitivity comparable with the Fermi-LAT front detector (<3 × 10−6 MeV cm−2 s−1 at 70 MeV), and minimum detectable polarization less than 10% for a 10 mCrab source in 106 s.
Department
Physics
Publication Date
7-2014
Journal Title
Astroparticle Physics
Publisher
Elsevier
Digital Object Identifier (DOI)
10.1016/j.astropartphys.2014.04.002
Document Type
Article
Recommended Citation
Stanley D. Hunter, Peter F. Bloser, Gerardo O. Depaola, Michael P. Dion, Georgia A. DeNolfo, Andrei Hanu, Marcos Iparraguirre, Jason Legere, Francesco Longo, Mark L. McConnell, Suzanne F. Nowicki, James M. Ryan, Seunghee Son, Floyd W. Stecker, A pair production telescope for medium-energy gamma-ray polarimetry, Astroparticle Physics, Volume 59, July–August 2014, Pages 18-28, ISSN 0927-6505, http://dx.doi.org/10.1016/j.astropartphys.2014.04.002. (http://www.sciencedirect.com/science/article/pii/S0927650514000413)