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

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

doi:10.1016/j.nima.2019.162629

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 journal › Article › peer-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.

Original language	English
Article number	162629
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	958
DOIs	https://doi.org/10.1016/j.nima.2019.162629
Publication status	Published - 2020 Apr 1

Keywords

Calcium Iodide
Dark matter
Double beta decay
Scintillation detector

ASJC Scopus subject areas

Nuclear and High Energy Physics
Instrumentation

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High-light-yield calcium iodide (CaI₂) scintillator for astroparticle physics. / Iida, Takashi; Kamada, Kei ; Yoshino, Masao; Kim, Kyoung Jin; Ichimura, Koichi ; Yoshikawa, Akira.

In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 958, 162629, 01.04.2020.

Research output: Contribution to journal › Article › peer-review

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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",

author = "Takashi Iida and Kei Kamada and Masao Yoshino and Kim, {Kyoung Jin} and Koichi Ichimura and Akira Yoshikawa",

note = "Funding Information: This work was performed as part of the Inter-University Cooperative Research Program of the Institute for Materials Research, Tohoku University (Proposal No. 18K0061 and 19K0089). It was supported by JSPS KAKENHI Grant-in-Aid for Scientific Research (B) 18H01222 and Grant-in-Aid for Young Scientists (B), Japan 16K17700 . The authors also appreciate the support of the University of Tsukuba{\textquoteright}s Basic Research Support Program Type S. ",

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AU - Yoshikawa, Akira

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