A pair production telescope for medium-energy gamma-ray polarimetry

A pair production telescope for medium-energy gamma-ray polarimetry

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.

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Bibliographic Details
Main Authors: Hunter, Stanley D., Bloser, Peter F., Depaola, Gerardo Osvaldo, Dion, Michael P., DeNolfo, Georgia A., Hanu, Andrei, Iparraguirre, Lorenzo Marcos, Legere, Jason, Longo, Francesco, McConnell, Mark L., Nowicki, Suzanne F., Ryan, James M., Son, Seunghee, Stecker, Floyd W.
Format: article biblioteca
Language:eng
Published: 2014
Subjects:Gamma rays, Telescope, Pair production, Angular resolution, Polarimetry, Sensitivity, Time projection chamber, Astrophysics,
Online Access:http://hdl.handle.net/11086/20374
https://doi.org/10.1016/j.astropartphys.2014.04.002
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http://hdl.handle.net/11086/20374
https://doi.org/10.1016/j.astropartphys.2014.04.002

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