Measurement of the drift field in the ARGONTUBE LAr TPC with 266~nm pulsed laser beams

A. Ereditato , D. Goeldi , S. Janos , I. Kreslo , M.Luethi , C. Rudolf von Rohr , M. Schenk , T. Strauss

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M. S. Weber M. Zeller

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classification ⚛️ physics.ins-det hep-ex

keywords argontubefieldcircuitdriftgeneratedgreinacherlasermeasurement

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ARGONTUBE is a liquid argon time projection chamber (LAr TPC) with a drift field generated in-situ by a Greinacher voltage multiplier circuit. We present results on the measurement of the drift-field distribution inside ARGONTUBE using straight ionization tracks generated by an intense UV laser beam. Our analysis is based on a simplified model of the charging of a multi-stage Greinacher circuit to describe the voltages on the field cage rings.

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Measurement of the drift field in the ARGONTUBE LAr TPC with 266~nm pulsed laser beams

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