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Calibration of a two-phase xenon time projection chamber with a ³⁷Ar source

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arxiv 1705.08958 v3 pith:HTSWPVBW submitted 2017-05-24 physics.ins-det

Calibration of a two-phase xenon time projection chamber with a ³⁷Ar source

classification physics.ins-det
keywords chargedriftdetectorelectricfieldlightpeaksource
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We calibrate a two-phase xenon detector at 0.27 keV in the charge channel and at 2.8 keV in both the light and charge channels using a $^{37}$Ar source that is directly released into the detector. We map the light and charge yields as a function of electric drift field. For the 2.8 keV peak, we calculate the Thomas-Imel box parameter for recombination and determine its dependence on drift field. For the same peak, we achieve an energy resolution, $E_{\sigma}/E_{mean}$, between 9.8% and 10.8% for 0.1 kV/cm to 2 kV/cm electric drift fields.

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