Jul 22 – 27, 2018
MacMillian
US/Eastern timezone

First results of high voltage breakdown studies with XeBrA

Jul 24, 2018, 4:50 PM
20m
117 (MacMillian)

117

MacMillian

Brown University Providence, Rhode Island, USA
Talk Direct Detection 2.5 Direct Detection

Speaker

Lucie Tvrznikova (Yale/LBNL)

Description

As noble liquid time projection chambers grow in size, their high voltage requirements increase, and detailed, reproducible studies of breakdown and electroluminescence are needed to inform their design. The Xenon Breakdown Apparatus (XeBrA) is a 5-liter cryogenic apparatus designed to study high voltage behavior in noble liquids located at Lawrence Berkeley National Laboratory. This talk will present the motivation for XeBrA and its first results in liquid argon and liquid xenon. Since experimental evidence suggests a correlation between electric field breakdown and electrode area in liquid argon, XeBrA was designed to characterize this behavior in both liquid argon and liquid xenon and allow for a direct comparison between measurements in these two noble liquids. Electrodes may be tested up to 30 cm2 in area, cathode-anode separation from 0 to 10 mm, and cathode voltages reaching -75 kV.

Primary author

Lucie Tvrznikova (Yale/LBNL)

Co-authors

Dr Daniel McKinsey Dr Ethan Bernard (LBNL) Dr Scott Krawitz (LBNL) Dr Quentin Riffard (LBNL) James Watson (UC Berkeley) William Waldron (Lawrence Berkeley National Laboratory) Glenn Richardson (UC Berkeley)

Presentation materials