TY - JOUR
T1 - Study of luminescence mechanism by neutral bremsstrahlung in gaseous argon
AU - Takeda, T.
AU - Tanaka, M.
AU - Yorita, K.
PY - 2020/3
Y1 - 2020/3
N2 - Secondary scintillation light (S2 signal) has been used in two-phase detectors for searching direct dark matter because of its useful characteristics. In general, electrons extracted from the liquid phase of two-phase detectors produce excimers in the gaseous phase that emit a vacuum ultraviolet (VUV) S2 signal. However, recent research suggests that the S2 signal in argon has another luminescence mechanism called "neutral bremsstrahlung". In this study, detailed measurements of neutral-bremsstrahlung-induced-S2-signal and VUV S2 signal in argon are reported.
AB - Secondary scintillation light (S2 signal) has been used in two-phase detectors for searching direct dark matter because of its useful characteristics. In general, electrons extracted from the liquid phase of two-phase detectors produce excimers in the gaseous phase that emit a vacuum ultraviolet (VUV) S2 signal. However, recent research suggests that the S2 signal in argon has another luminescence mechanism called "neutral bremsstrahlung". In this study, detailed measurements of neutral-bremsstrahlung-induced-S2-signal and VUV S2 signal in argon are reported.
KW - Charge transport
KW - Gaseous detectors
KW - multiplication and electroluminescence in rare gases and liquids
UR - http://www.scopus.com/inward/record.url?scp=85084188221&partnerID=8YFLogxK
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U2 - 10.1088/1748-0221/15/03/C03007
DO - 10.1088/1748-0221/15/03/C03007
M3 - Article
AN - SCOPUS:85084188221
VL - 15
JO - Journal of Instrumentation
JF - Journal of Instrumentation
SN - 1748-0221
IS - 3
M1 - C03007
ER -