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.
Effect of low electric fields on alpha scintillation light yield in liquid argon
Bonivento, W.;CADEDDU, MATTEO;CADONI, MARIANO;CARAVATI, MAURO;CICALO', CORRADO;DEVOTO, ALBERTO;GALBIATI, CRISTIANO;LISSIA, MARCELLO;
2017-01-01
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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