SiPM-matrix readout of two-phase argon detectors using electroluminescence in the visible and near infrared range

نویسندگان

چکیده

Proportional electroluminescence (EL) in noble gases is used two-phase detectors for dark matter searches to record (in the gas phase) ionization signal induced by particle scattering liquid phase. The "standard" EL mechanism considered be due excimer emission vacuum ultraviolet (VUV). In addition, there are two alternative mechanisms, producing light visible and near infrared (NIR) ranges. first bremsstrahlung of electrons scattered on neutral atoms ("neutral bremsstrahlung", NBrS). second, responsible electron avalanche scintillation NIR at higher electric fields, transitions between excited atomic states. this work, we have time demonstrated techniques optical readout argon detectors, range, using a silicon photomultiplier matrix either or scintillation. amplitude yield position resolution were measured these techniques, which allowed assess detection threshold nuclear recoils searches. To best our knowledge, practical application NBrS effect science.

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ژورنال

عنوان ژورنال: European Physical Journal C

سال: 2021

ISSN: ['1434-6044', '1434-6052']

DOI: https://doi.org/10.1140/epjc/s10052-020-08801-2