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

A. Delbart; D. Atti\'e; D. Bernard; D. Durand; I. Semeniouk; M. Frotin; P. Gros; P. Magnier; P. Poilleux; S. Legand

arxiv: 1512.03248 · v1 · pith:RRT6WTC6new · submitted 2015-12-10 · ⚛️ physics.ins-det · astro-ph.IM

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

M. Frotin , P. Gros , D. Atti\'e , D. Bernard , V. Dauvois , A. Delbart , D. Durand , Y. Geerebaert

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S. Legand P. Magnier P. Poilleux I. Semeniouk

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classification ⚛️ physics.ins-det astro-ph.IM

keywords circulationharpooperationpurificationanalysischambercompletecosmic-ray

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

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