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

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

ASTROPARTICLE PHYSICS

ELSEVIER SCIENCE BV

Lugar: Amsterdam; Año: 2014 vol. 59 p. 18 - 28

0927-6505

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 (