High-light-yield calcium iodide (CaI2) scintillator for astroparticle physics

Takashi Iida, Kei Kamada, Masao Yoshino, Kyoung Jin Kim, Koichi Ichimura, Akira Yoshikawa

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

We are developing a high-light-yield calcium iodide (CaI2) scintillator for astroparticle physics experiments. This paper reports our CaI2 scintillator crystal's scintillation performance. It achieved high light emissions (2.7 times those of NaI(Tl)) at a wavelength that was well within the photomultiplier's sensitivity region. We also performed a pulse shape discrimination study using alpha and gamma-ray sources, confirming after a brief analysis that CaI2 has excellent pulse shape discrimination potential.

Keywords

  • Calcium Iodide
  • Dark matter
  • Double beta decay
  • Scintillation detector

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

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