Development of a non-destructive elemental analysis method for sub-percent components using muon-induced gamma-rays

Makoto Inagaki, Kazuhiko Ninomiya, Go Yoshida, Michael Kenya Kubo, Kosei Yakushi, Eisuke Watanabe, Hiroki Nakada & Izumi Umegaki

Journal of Radioanalytical and Nuclear Chemistry, 335, 617–623 (2026).

Surface Modifications of a Space-weathered Ryugu Sample and the Reflectance Spectral Response

Hotaka Onuma, Megumi Matsumoto, Tomoki Nakamura, Kana Amano, Taiga Takase, Kazuhiko Ninomiya, Hideko Nomura

The Planetary Science Journal, 7(1), 11 (2026).

Isotopic ratios of plutonium in radioactive particles released by the accident of Fukushima Daiichi Nuclear Power Plant

Junya Igarashi, Kazuhiko Ninomiya, Jian Zheng, Zijian Zhang, Miho Fukuda, Tatsuo Aono, Haruka Minowa, Hideki Yoshikawa, Keisuke Sueki, Yukihiko Satou, Atsushi Shinohara

Journal of Environmental Radioactivity, 291, 107856 (2026).

Detection of Metallic Li Deposition in a Laminated Li-Ion Battery Using Muonic X-rays

Izumi Umegaki, Yasuhito Kondo, Hiroki Kondo, Hiroshi Nozaki, Yuki Higuchi, Motonobu Tampo, Soshi Takeshita, Kazuhiko Ninomiya, Michael Kenya Kubo, Koichiro Shimomura, Yasuhiro Miyake

Analytical Chemistry, 97(45), 24959–24966 (2025).

Evaluation of a CdTe semiconductor-based gamma camera for real-time dose dosimetry in boron neutron capture therapy

I-Huan Chiu, Takahito Osawa, Takehiro Sumita, Kazuhiko Ninomiya, Shin'ichiro Takeda, Tadayuki Takahashi

Medical Physics, 52(10), e70062 (2025).

Overcoming the probing-depth dilemma in spectroscopic analyses of batteries with muon-induced X-ray emission (MIXE)

Edouard Querel, Sayani Biswas, Michael W. Heiss, Lars Gerchow, Qing Wang, Ryo Asakura, Gian Muller, ebarchan Das, Zurab Guguchia, Fabian Hotz, Gianluca Janka, Andreas Knecht, Hubertus Luetkens, Charles Mielke, Carlos Vigo, Chennan Wang, Stergiani Marina Vogiatzi, Toni Shiroka, Thomas Prokscha, Katharina von Schoeler, Shunsuke Asari, I.-Huan Chiu, Akira Sato, Kazuhiko Ninomiya, Megumi Niikura, Corsin Battaglia, Alex Amato and Arndt Remhof

Journal of Materials Chemistry A, 13, 2275 (2025).

Muonic x-ray measurement for the nuclear charge distribution: The case of stable palladium isotopes

T. Y. Saito, M. Niikura, T. Matsuzaki, H. Sakurai, M. Igashira, H. Imao, K. Ishida, T. Katabuchi, Y. Kawashima, M. K. Kubo, Y. Miyake, Y. Mori, K. Ninomiya, A. Sato, K. Shimomura , P. Strasser, A. Taniguchi, D. Tomono, and Y. Watanabe

Physical Review C, 111, 034313 (2025).

Development of a real-time boron imaging method for BNCT using CdTe-DSD at the JRR-3

I-Huan Chiu, Takahito Osawa, Takehiro Sumita, Mizuha Ikeda, Kazuhiko Ninomiya, Shin'ichiro Takeda, Takahiro Minami, Tadayuki Takahashi, Shin Watanabe

Applied Radiation and Isotopes, 222, 111845 (2025).

Development of a non-destructive carbon quantification method in iron by negative muon lifetime measurement

Kazuhiko Ninomiya, Michael Kenya Kubo, Makoto Inagaki, Go Yoshida, Soshi Takeshita, Motonobu Tampo, Koichiro Shimomura, Naritoshi Kawamura, Patrick Strasser, Yasuhiro Miyake, Takashi U. Ito, Wataru Higemoto, Tsutomu Saito

Journal of Radioanalytical and Nuclear Chemistry, 333, 3445–3450 (2024).

Fukushima Daiichi Nuclear Power Plant Accident: Understanding Formation Mechanism of Radioactive Particles through Sr and Pu Quantities

Junya Igarashi, Kazuhiko Ninomiya, Jian Zheng, Zijian Zhang, Miho Fukuda, Tatsuo Aono, Haruka Minowa, Hideki Yoshikawa, Keisuke Sueki, Yukihiko Satou, Atsushi Shinohara

Environmental Science & Technology, 58(33), 14823–14830 (2024).

Development of non-destructive isotope measurement of the natural galena (PbS) using negative muon beams

K. Terada, K. Ninomiya, A. Sato, D. Tomono, Y. Kawashima, M. Inagaki, A. Nambu, T. Kudo, T. Osawa & M. K. Kubo

Journal of Analytical Science and Technology, 15(28) (2024).

Development of wide range photon detection system for muonic X-ray spectroscopy

R. Mizuno, M. Niikura, T.Y. Saito, T. Matsuzaki, H. Sakurai, A. Amato, S. Asari, S. Biswas, I. Chiu, L. Gerchow, Z. Guguchia, G. Janka, K. Ninomiya, N. Ritjoho, A. Sato, K. von, Schoeler, D. Tomono, K. Terada, C. Wang

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 1060, 169029-169029 (2024).

Quantification of bulk elemental composition for C‐type asteroid Ryugu samples with nondestructive elemental analysis using muon beam

Kazuhiko Ninomiya, Takahito Osawa, Kentaro Terada, Taiga Wada, Shunsaku Nagasawa, I‐Haun Chiu, Tomoki Nakamura, Tadayuki Takahashi, Yasuhiro Miyake, M. Kenya Kubo, Soshi Takeshita, Akihiro Taniguchi, Izumi Umegaki, Shin Watanabe, Toshiyuki Azuma, Miho Katsuragawa, Takahiro Minami, Kazumi Mizumoto, Koichiro Shimomura, Shin'ichiro Takeda, Tomoyo Morita, Mizuha Kikuiri, Kana Amano, Eiichi Kagawa, Yoshihiro Furukawa, Hisayoshi Yurimoto, Takaaki Noguchi, Ryuji Okazaki, Hikaru Yabuta, Hiroshi Naraoka, Kanako Sakamoto, Shogo Tachibana, Toru Yada, Masahiro Nishimura, Aiko Nakato, Akiko Miyazaki, Kasumi Yogata, Masanao Abe, Tatsuaki Okada, Tomohiro Usui, Makoto Yoshikawa, Takanao Saiki, Satoshi Tanaka, Fuyuto Terui, Satoru Nakazawa, Sei‐ichiro Watanabe, Yuichi Tsuda

Meteoritics & Planetary Science, 59(8), 2044-2057 (2024).

Development of a non-destructive depth-selective quantification method for sub-percent carbon contents in steel using negative muon lifetime analysis

Kazuhiko Ninomiya, Michael Kenya Kubo, Makoto Inagaki, Go Yoshida, I-Huan Chiu, Takuto Kudo, Shunsuke Asari, Sawako Sentoku, Soshi Takeshita, Koichiro Shimomura, Naritoshi Kawamura, Patrick Strasser, Yasuhiro Miyake, Takashi U. Ito, Wataru Higemoto, Tsutomu Saito

Scientific Reports, 14(1) 1797 (2024).

7th Asia-Pacific Symposium On RadioChemistry (APSORC25)

2025.9.14 - 20, Kunibiki Messe

Plenary Talk

Kazuhiko Ninomiya
[PL04] ELEMENTAL ANALYSIS METHOD USING MUONS: APPLICATIONS FOR ASTEROID AND ARCHEOLOGICAL SAMPLES

Poster

Shota Morishita, Akihito Matsushima, Kazuhiko Ninomiya
[P-P3-02*] OPTIMIZATION OF ⁹⁰Sr ANALYSIS METHOD FOR THE RESIDUE OF SUSPENDED PARTICULATE MATTER (SPM) SAMPLES AFTER SEPARATION OF ¹²⁹I

Kousei Yakushi, Kenya Kubo, Makoto Inagaki, Go Yoshida, Soshi Takeshita, Patrick Strasser, Naritoshi Kawamura, Yasuhiro Miyake, Koichiro Shimomura, Tsutomu Saito, Kazuhiko Ninomiya
[P-R5-07*] NON-DESTRUCTIVE DEPTH PROFILE QUANTIFICATION OF CARBON CONTENTS IN JAPANESE SWORD BY MUON LIFETIME ANALYSIS METHOD

Atsuya Yukawa, Tsutomu Saito, Motonobu Tampo, Idumi Umegaki, Soshi Takeshita, Yasuhiro Miyake, Koichiro Shimomura, Kazuhiko Ninomiya
[P-R5-09*] ELEMENTAL DEPTH DISTRIBUTION ANALYSIS OF JAPANESE GOLD PRODUCTS FROM LATE 16^th CENTURY USING MUONIC X-RAYS

Miu Nomura, Satoaki Den, Naoko Nishino, Kazuhiko Ninomiya, I-Huan Chiu, Shunsuke Asari, Akira Sato, Takashi Yoshimura, Alex Amato, Sayato Biswas, Lars Frieder Gerchow, Carlos Vigo, Chennan Wang, Charles Hillis Mielke III, Debarchan Das, Fabian Hotz, Gianluca Janka, Hubertus Luetkens, Katharina von Schoeler, Narongrit Ritjoho, Thomas Prokscha, Toni Shiroka, Zaher Salman, Zurab Guguchia
[P-R4-06*] INITIAL STATE OF CAPTURED MUON IN COPPER ATOM AND CHEMICAL ENVIRONMENTAL DEPENDENCE ON MUON CAPTURE

34th International Conference on Photonic, Electronic and Atomic Collisions (ICPEAC2025)

2025.7.29 - 8.5, Sapporo Convention Centre

Poster

Kazuhiko Ninomiya, Meito Kajino, Akihiro Nambu, Makoto Inagaki, Takuto Kudo, Akira Sato, Kentaro Terada, Dai Tomono, Yoshitaka Kawashima, Yoichi Sakai, Tsutomu Takayama, Atsushi Shinohara
[Th110] Investigation of chemical environmental effect on muon capture process and identification of chemical state of muon capturing atom

16th International Conference on Muon Spin Rotation, Relaxation and Resonance (μSR2025)

2025.7.20 - 25, Delta Hotels St. John's Conference Centre

Oral

Kazuhiko Ninomiya
[15] Non‑Destructive Depth‑Selective Quantification for Carbon in Steel Using Negative Muon Lifetime Analysis