Effect of low electric fields on alpha scintillation light yield in liquid argon

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Published 24 January 2017 © 2017 IOP Publishing Ltd and Sissa Medialab srl
, , Citation P. Agnes et al 2017 JINST 12 P01021 DOI 10.1088/1748-0221/12/01/P01021

1748-0221/12/01/P01021

Abstract

Measurements were made of scintillation light yield of alpha particles from the 222Rn decay chain within the DarkSide-50 liquid argon time projection chamber. The light yield was found to increase as the applied electric field increased, with alphas in a 200 V/cm electric field exhibiting a ∼2% increase in light yield compared to alphas in no field.

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