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May 21 – 26, 2017
Beijing International Convention Center
Asia/Shanghai timezone

A comprehensive analysis of polarised $\gamma$-ray beam data with a HARPO demonstrator

May 23, 2017, 11:18 AM
Room 305A (Beijing International Convention Center)

Room 305A

Beijing International Convention Center

No.8 Beichen Dong Road, Chaoyang District, Beijing P. R. China 100101
oral Astrophysics and space instrumentation R1-Astrophysics and space instrumentation(1)


Ryo Yonamine (CEA/Saclay)


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)

Presentation materials