Speaker
Mr
Matthew Thiesse
(University of Sheffield)
Description
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)
