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arXiv · 1406.4830

HARPO: a TPC as a gamma-ray telescope and polarimeter

Denis Bernard·Philippe Bruel·Mickael Frotin·Yannick Geerebaert·Berrie Giebels·Philippe Gros·Deirdre Horan·Marc Louzir·Patrick Poilleux·Igor Semeniouk·Shaobo Wang·Shebli Anvar·David Attié·Paul Colas·Alain Delbart·Patrick Sizun·Diego Götz
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Abstract

A gas Time Projection Chamber can be used for gamma-ray astronomy with excellent angular-precision and sensitivity to faint sources, and for polarimetry, through the measurement of photon conversion to $e^+e^-$ pairs. We present the expected performance in simulations and the recent development of a demonstrator for tests in a polarized photon beam.

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Denis Bernard, Philippe Bruel, Mickael Frotin, Yannick Geerebaert, Berrie Giebels, Philippe Gros, Deirdre Horan, Marc Louzir, Patrick Poilleux, Igor Semeniouk, Shaobo Wang, Shebli Anvar, David Attié, Paul Colas, Alain Delbart, Patrick Sizun, Diego Götz. 2014-06-18. HARPO: a TPC as a gamma-ray telescope and polarimeter. https://doi.org/10.1117/12.2055307

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