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arXiv · 1807.07121

Field dependence of electronic recoil signals in a dual-phase liquid xenon time projection chamber

E. Hogenbirk·M. P. Decowski·K. McEwan·A. P. Colijn
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Abstract

We present measurements of light and charge signals in a dual-phase time projection chamber at electric fields varying from 10 V/cm up to 500 V/cm and at zero field using 511 keV gamma rays from a $^{22}$Na source. We determine the drift velocity, electron lifetime, diffusion constant, and light and charge yields at 511 keV as a function of the electric field. In addition, we fit the scintillation pulse shape to an effective exponential model, showing a decay time of 43.5 ns at low field that decreases to 25 ns at high fields.

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E. Hogenbirk, M. P. Decowski, K. McEwan, A. P. Colijn. 2018-07-18. Field dependence of electronic recoil signals in a dual-phase liquid xenon time projection chamber. https://doi.org/10.1088/1748-0221/13/10/p10031

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