Open AccessStudy of luminescence mechanism by neutral bremsstrahlung in gaseous argon
Author(s) -
T. Takeda,
M. Tanaka,
K. Yorita
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1468/1/012053
Subject(s) - bremsstrahlung , argon , luminescence , signal (programming language) , scintillation , electron , atomic physics , physics , phase (matter) , detector , optics , nuclear physics , quantum mechanics , computer science , programming language
Secondary scintillation light (S2 signal) has been used for direct dark matter search in two-phase detectors because of its appealing characters. In general, electrons extracted from the liquid phase of two-phase detectors produce excimers in the gaseous phase that emit a VUV (vacuum ultraviolet) S2 signal. However, recent research suggests that the S2 signal in argon has another luminescence mechanism called "neutral bremsstrahlung". In this work, detailed measurements of neutral-bremsstrahlung-induced -S2 -signal (and also VUV S2 signal) in argon are reported.