Study of luminescence mechanism by neutral bremsstrahlung in gaseous argon

T. Takeda, M. Tanaka, K. Yorita

Research output: Contribution to journalConference articlepeer-review

2 Citations (Scopus)


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.

Original languageEnglish
Article number012053
JournalJournal of Physics: Conference Series
Issue number1
Publication statusPublished - 2020 Mar 20
Externally publishedYes
Event16th International Conference on Topics in Astroparticle and Underground Physics, TAUP 2019 - Toyama, Japan
Duration: 2019 Sept 92019 Sept 13

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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