Gamma ray ionizing dosimeter with a high radiation resistant CIGS solar cell

Yasuki Okuno; Yukiko Kamikawa; Mitsuru Imaizumi; Tamotsu Okamoto; Tomohiro Kobayashi; Takahiro Makino; Kasada Ryuta; Yuki Jimba; Kazuya Usui; Yasuhito Gotoh; Masafumi Akiyoshi; Nobuhiro Sato; Tetsuya Nakamura; Yoshie Otake

doi:10.35848/1347-4065/ae3f6c

Gamma ray ionizing dosimeter with a high radiation resistant CIGS solar cell

Yasuki Okuno
, Yukiko Kamikawa
, Mitsuru Imaizumi
, Tamotsu Okamoto
, Tomohiro Kobayashi
, Takahiro Makino
, Kasada Ryuta
, Yuki Jimba
, Kazuya Usui
, Yasuhito Gotoh
, Masafumi Akiyoshi
, Nobuhiro Sato
, Tetsuya Nakamura
, Yoshie Otake

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

Abstract

In order to apply for radiation dosimetry in decommission of the TEPCO Fukushima Daiichi nuclear power plant, we develop the dosimeter based on CuInGaSe (CIGS) solar cell which have very high radiation tolerance, stable detection of radiation over long periods in a high-dose environment is expected. In this method, radiation generates electron–hole pairs in the absorber layer of the CIGS solar cell due to ionization, and the resulting current is measured as the detection signal. The current response of CIGS solar cells in a gamma-ray environment and characterize the dosimeter behavior. The CIGS solar cell device exhibits stable operation without degradation even in a Co-60 gamma-ray environment of 1 MGy, and its detection characteristics allow measuring dose rates from 100 mGy h⁻¹ to 100 kGy h⁻¹ with an approximate resolution of 10 mGy h⁻¹ with a fast response of approximately 2 ms.

Original language	English
Article number	041003
Journal	Japanese Journal of Applied Physics, Part 2: Letters
Volume	65
Issue number	4
DOIs	https://doi.org/10.35848/1347-4065/ae3f6c
State	Published - Feb 27 2026
Externally published	Yes

Funding

This work was supported by JAEA Nuclear Energy S&T and Human Resource Development Project through concentrating wisdom Grant No. JPMXDO220354241 and JPJA22P22683601. This work was supported in part by the Ministry of Education, Culture, Sports, Science and Technology of Japan (MEXT) under the Nuclear Energy Systems Research and Development Project JPMXD0212345678.

Keywords

CuInGaSe
dosimeter
gamma-ray
ionizing sensing
non Ionizing energy loss
solar cell

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10.35848/1347-4065/ae3f6c

Cite this

Okuno, Y., Kamikawa, Y., Imaizumi, M., Okamoto, T., Kobayashi, T., Makino, T., Ryuta, K., Jimba, Y., Usui, K., Gotoh, Y., Akiyoshi, M., Sato, N., Nakamura, T., & Otake, Y. (2026). Gamma ray ionizing dosimeter with a high radiation resistant CIGS solar cell. Japanese Journal of Applied Physics, Part 2: Letters, 65(4), Article 041003. https://doi.org/10.35848/1347-4065/ae3f6c

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abstract = "In order to apply for radiation dosimetry in decommission of the TEPCO Fukushima Daiichi nuclear power plant, we develop the dosimeter based on CuInGaSe (CIGS) solar cell which have very high radiation tolerance, stable detection of radiation over long periods in a high-dose environment is expected. In this method, radiation generates electron–hole pairs in the absorber layer of the CIGS solar cell due to ionization, and the resulting current is measured as the detection signal. The current response of CIGS solar cells in a gamma-ray environment and characterize the dosimeter behavior. The CIGS solar cell device exhibits stable operation without degradation even in a Co-60 gamma-ray environment of 1 MGy, and its detection characteristics allow measuring dose rates from 100 mGy h−1 to 100 kGy h−1 with an approximate resolution of 10 mGy h−1 with a fast response of approximately 2 ms.",

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doi = "10.35848/1347-4065/ae3f6c",

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AU - Okuno, Yasuki

AU - Kamikawa, Yukiko

AU - Imaizumi, Mitsuru

AU - Okamoto, Tamotsu

AU - Kobayashi, Tomohiro

AU - Makino, Takahiro

AU - Ryuta, Kasada

AU - Jimba, Yuki

AU - Usui, Kazuya

AU - Gotoh, Yasuhito

AU - Akiyoshi, Masafumi

AU - Sato, Nobuhiro

AU - Nakamura, Tetsuya

AU - Otake, Yoshie

PY - 2026/2/27

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N2 - In order to apply for radiation dosimetry in decommission of the TEPCO Fukushima Daiichi nuclear power plant, we develop the dosimeter based on CuInGaSe (CIGS) solar cell which have very high radiation tolerance, stable detection of radiation over long periods in a high-dose environment is expected. In this method, radiation generates electron–hole pairs in the absorber layer of the CIGS solar cell due to ionization, and the resulting current is measured as the detection signal. The current response of CIGS solar cells in a gamma-ray environment and characterize the dosimeter behavior. The CIGS solar cell device exhibits stable operation without degradation even in a Co-60 gamma-ray environment of 1 MGy, and its detection characteristics allow measuring dose rates from 100 mGy h−1 to 100 kGy h−1 with an approximate resolution of 10 mGy h−1 with a fast response of approximately 2 ms.

AB - In order to apply for radiation dosimetry in decommission of the TEPCO Fukushima Daiichi nuclear power plant, we develop the dosimeter based on CuInGaSe (CIGS) solar cell which have very high radiation tolerance, stable detection of radiation over long periods in a high-dose environment is expected. In this method, radiation generates electron–hole pairs in the absorber layer of the CIGS solar cell due to ionization, and the resulting current is measured as the detection signal. The current response of CIGS solar cells in a gamma-ray environment and characterize the dosimeter behavior. The CIGS solar cell device exhibits stable operation without degradation even in a Co-60 gamma-ray environment of 1 MGy, and its detection characteristics allow measuring dose rates from 100 mGy h−1 to 100 kGy h−1 with an approximate resolution of 10 mGy h−1 with a fast response of approximately 2 ms.

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KW - non Ionizing energy loss

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Gamma ray ionizing dosimeter with a high radiation resistant CIGS solar cell

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