Apr 7 – 9, 2014
Royal Holloway, University of London
Europe/London timezone
Institute of Physics 2014 Joint High Energy Particle Physics and Astro Particle Physics Groups Annual Meeting

Liquid Argon R&D for LBNE and the 35-ton prototype

Not scheduled
Windsor Building (Royal Holloway, University of London)

Windsor Building

Royal Holloway, University of London

Egham Hill, Surrey TW20 0EX
poster Poster Session


Mr Matthew Thiesse (University of Sheffield)


The Long-Baseline Neutrino Experiment 35-ton prototype detector was built to evaluate and demonstrate liquid argon time projection chamber design elements specific to the full-scale LBNE far detector, such as modular anode plane assembly elements and membrane cryostat technologies. The work presented here relates to several areas of liquid argon detector R&D involving argon purity and high voltage discharge. Due to the large fields needed to drift charged particles and the comparatively low electric breakdown voltages of liquid and gaseous argon, a CMOS camera system is developed to monitor, identify, and diagnose electric discharge such as coronae or sparks on certain TPC elements. A stainless steel housing was also designed to isolate the camera and components from the ultra-pure argon in the detector. A recirculating liquid argon test stand is being built to investigate the effect of argon purity on processes such as electric discharge as well as electron diffusion.

Primary author

Mr Matthew Thiesse (University of Sheffield)

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