Stable operation with gain of a double phase Liquid Argon LEM-TPC with a 1 mm thick segmented LEM

In this paper we present results from a test of a small Liquid Argon Large Electron Multiplier Time Projection Chamber (LAr LEM-TPC). This detector concept provides a 3D-tracking and calorimetric device capable of charge amplification, suited for next-generation neutrino detectors and possibly direc...

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Bibliographic Details
Published in:Journal of physics. Conference series 2011-01, Vol.308 (1), p.12016-7
Main Authors: Resnati, F, Badertscher, A, Curioni, A, Horikawa, S, Knecht, L, Lussi, D, Marchionni, A, Natterer, G, Rubbia, A, Viant, T
Format: Article
Language:English
Subjects:
Amplification
Argon
Chambers
Dark matter
Detectors
Equivalence
Gain
Liquids
Neutrinos
Photomultiplier tubes
Physics
Radiation counters
Tracking devices
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Summary:In this paper we present results from a test of a small Liquid Argon Large Electron Multiplier Time Projection Chamber (LAr LEM-TPC). This detector concept provides a 3D-tracking and calorimetric device capable of charge amplification, suited for next-generation neutrino detectors and possibly direct Dark Matter searches. During a test of a 3 lt chamber equipped with a 10×10 cm2 readout, cosmic muon data was recorded during three weeks of data taking. A maximum gain of 6.5 was achieved and the liquid argon was kept pure enough to ensure 20 cm drift (O(ppb) O2 equivalent).
ISSN:1742-6596
1742-6588
1742-6596
DOI:10.1088/1742-6596/308/1/012016