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

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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...

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Detalles Bibliográficos
Autores principales: 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.
Formato: article
Lenguaje:Inglés
Publicado: 2021
Materias:
Gamma rays
Telescope
Pair production
Angular resolution
Polarimetry
Sensitivity
Time projection chamber
Astrophysics
Acceso en línea:http://hdl.handle.net/11086/20374
https://doi.org/10.1016/j.astropartphys.2014.04.002
Aporte de:
Repositorio Digital Universitario (UNC) de Universidad Nacional de Córdoba
Descripción
Sumario: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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