Speaker
Ryo Yonamine
(CEA/Saclay)
Description
The HARPO is a design concept of the gaseous TPC aiming for a high precision telescope and polarimeter for cosmic
$\gamma$-rays especially in the energy range from the pair-production threshold up to
the order of 1 GeV, where current $\gamma$-ray telescope has a sensitivity drop and
no polarimetry exists due to the multiple scattering.
In order to investigate the feasibility,
we built a HARPO demonstrator and performed a beam test campaign
with a polarised $\gamma$-ray at the NewSUBARU accelerator in Japan in 2014.
Our earlier studies showed promising results as a polarimeter
even before performing analysis optimization.
We are finalizing the polarimetry study by optimizing analysis
and also extending our study to the angular resolution as its telescope performance.
Primary author
Ryo Yonamine
(CEA/Saclay)
