Study of luminescence mechanism by neutral bremsstrahlung in gaseous argon

T. Takeda*, M. Tanaka, K. Yorita

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


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.

Original languageEnglish
Article numberC03007
JournalJournal of Instrumentation
Issue number3
Publication statusPublished - 2020 Mar


  • Charge transport
  • Gaseous detectors
  • multiplication and electroluminescence in rare gases and liquids

ASJC Scopus subject areas

  • Mathematical Physics
  • Instrumentation


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