Sealed operation, and circulation and purification of gas in the HARPO TPC

M. Frotin; P. Gros; D. Attié; D. Bernard; V. Dauvois; A. Delbart; D. Durand; Y. Geerebaert; S. Legand; P. Magnier; P. Poilleux; I. Semeniouk

arXiv · 1512.03248

Sealed operation, and circulation and purification of gas in the HARPO TPC

M. Frotin·P. Gros·D. Attié·D. Bernard·V. Dauvois·A. Delbart·D. Durand·Y. Geerebaert·S. Legand·P. Magnier·P. Poilleux·I. Semeniouk

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Abstract

HARPO is a time projection chamber (TPC) demonstrator of a gamma-ray telescope and polarimeter in the MeV-GeV range, for a future space mission. We present the evolution of the TPC performance over a five month sealed-mode operation, by the analysis of cosmic-ray data, followed by the fast and complete recovery of the initial gas properties using a lightweight gas circulation and purification system.

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M. Frotin, P. Gros, D. Attié, D. Bernard, V. Dauvois, A. Delbart, D. Durand, Y. Geerebaert, S. Legand, P. Magnier, P. Poilleux, I. Semeniouk. 2015-12-10. Sealed operation, and circulation and purification of gas in the HARPO TPC. https://arxiv.org/abs/1512.03248

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