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Ninomiya K, Kubo MK, Inagaki M, Yoshida G, Chiu IH, Kudo T, Asari S, Sentoku S, Takeshita S, Shimomura K, Kawamura N, Strasser P, Miyake Y, Ito TU, Higemoto W, Saito T. Development of a non-destructive depth-selective quantification method for sub-percent carbon contents in steel using negative muon lifetime analysis. Sci Rep 2024; 14:1797. [PMID: 38245588 PMCID: PMC10799958 DOI: 10.1038/s41598-024-52255-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Accepted: 01/16/2024] [Indexed: 01/22/2024] Open
Abstract
The amount of C in steel, which is critical in determining its properties, is strongly influenced by steel production technology. We propose a novel method of quantifying the bulk C content in steel non-destructively using muons. This revolutionary method may be used not only in the quality control of steel in production, but also in analyzing precious steel archaeological artifacts. A negatively charged muon forms an atomic system owing to its negative charge, and is finally absorbed into the nucleus or decays to an electron. The lifetimes of muons differ significantly, depending on whether they are trapped by Fe or C atoms, and identifying the elemental content at the muon stoppage position is possible via muon lifetime measurements. The relationship between the muon capture probabilities of C/Fe and the elemental content of C exhibits a good linearity, and the C content in the steel may be quantitatively determined via muon lifetime measurements. Furthermore, by controlling the incident energies of the muons, they may be stopped in each layer of a stacked sample consisting of three types of steel plates with thicknesses of 0.5 mm, and we successfully determined the C contents in the range 0.20-1.03 wt% depth-selectively, without sample destruction.
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Affiliation(s)
- Kazuhiko Ninomiya
- Institute for Radiation Sciences, Osaka University, 1-1, Machikaneyama, Toyonaka, Osaka, 560-0043, Japan.
- Graduate School of Science, Osaka University, 1-1, Machikaneyama, Toyonaka, Osaka, 560-0043, Japan.
| | - Michael Kenya Kubo
- Division of Natural Sciences, International Christian University, 3-10-2, Osawa, Mitaka, Tokyo, 181-8585, Japan
| | - Makoto Inagaki
- Institute for Integrated Radiation and Nuclear Science, Kyoto University, Asashiro-Nishi, Kumatori, Osaka, 590-0494, Japan
| | - Go Yoshida
- Radiation Science Center, High Energy Accelerator Research Organization (KEK), 1-1, Oho, Tsukuba, Ibaraki, 315-0801, Japan
| | - I-Huan Chiu
- Institute for Radiation Sciences, Osaka University, 1-1, Machikaneyama, Toyonaka, Osaka, 560-0043, Japan
| | - Takuto Kudo
- Graduate School of Science, Osaka University, 1-1, Machikaneyama, Toyonaka, Osaka, 560-0043, Japan
| | - Shunsuke Asari
- Graduate School of Science, Osaka University, 1-1, Machikaneyama, Toyonaka, Osaka, 560-0043, Japan
| | - Sawako Sentoku
- Division of Natural Sciences, International Christian University, 3-10-2, Osawa, Mitaka, Tokyo, 181-8585, Japan
| | - Soshi Takeshita
- Muon Science Laboratory, Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK), 1-1, Oho, Tsukuba, Ibaraki, 315-0801, Japan
| | - Koichiro Shimomura
- Muon Science Laboratory, Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK), 1-1, Oho, Tsukuba, Ibaraki, 315-0801, Japan
| | - Naritoshi Kawamura
- Muon Science Laboratory, Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK), 1-1, Oho, Tsukuba, Ibaraki, 315-0801, Japan
| | - Patrick Strasser
- Muon Science Laboratory, Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK), 1-1, Oho, Tsukuba, Ibaraki, 315-0801, Japan
| | - Yasuhiro Miyake
- Muon Science Laboratory, Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK), 1-1, Oho, Tsukuba, Ibaraki, 315-0801, Japan
| | - Takashi U Ito
- Advanced Science Research Center, Japan Atomic Energy Agency, 2-4, Shirakata, Tokai, Ibaraki, 319-1195, Japan
| | - Wataru Higemoto
- Advanced Science Research Center, Japan Atomic Energy Agency, 2-4, Shirakata, Tokai, Ibaraki, 319-1195, Japan
- Department of Physics, Tokyo Institute of Technology, 2-12-1, Ookayama, Meguro, Tokyo, 152-8550, Japan
| | - Tsutomu Saito
- National Museum of Japanese History, 117 Jonai-Cho, Sakura, Chiba, 285-8502, Japan
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Ninomiya K, Kajino M, Nambu A, Inagaki M, Kudo T, Sato A, Terada K, Shinohara A, Tomono D, Kawashima Y, Sakai Y, Takayama T. Non-Destructive Composition Identification for Mixtures of Iron Compounds Using a Chemical Environmental Effect on a Muon Capture Process. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2022. [DOI: 10.1246/bcsj.20220289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Kazuhiko Ninomiya
- Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
- Insititute for Radiation Sciences, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Meito Kajino
- Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Akihiro Nambu
- Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Makoto Inagaki
- Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
- Institute for Integrated Radiation and Nuclear Science, Kyoto University, Kumatori, Sennan, Osaka 590-0494, Japan
| | - Takuto Kudo
- Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Akira Sato
- Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Kentaro Terada
- Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Atsushi Shinohara
- Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
- Osaka Aoyama University, Minoh, Osaka 562-8580, Japan
| | - Dai Tomono
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - Yoshitaka Kawashima
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - Yoichi Sakai
- Department of Chemistry, Daido University, Takiharu-cho, Nagoya, Aichi 457-8530, Japan
| | - Tsutomu Takayama
- Department of Chemistry, Daido University, Takiharu-cho, Nagoya, Aichi 457-8530, Japan
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A Novel Non-Destructive Technique for Cultural Heritage: Depth Profiling and Elemental Analysis Underneath the Surface with Negative Muons. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12094237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Scientists, curators, historians and archaeologists are always looking for new techniques for the study of archaeological artefacts, especially if they are non-destructive. With most non-destructive investigations, it is challenging to measure beneath the surface. Among the vast board of techniques used for cultural heritage studies, it is difficult to find one able to give information about the bulk and the compositional variations, along with the depth. In addition, most other techniques have self-absorption issues (i.e., only surface sensitive) and limited sensitivity to low Z atoms. In recent years, more and more interest has been growing around large-scale facility-based techniques, thanks to the possibility of adding new and different insights to the study of material in a non-destructive way. Among them, muonic X-ray spectroscopy is a very powerful technique for material characterization. By using negative muons, scientists are able to perform elemental characterization and depth profile studies. In this work, we give an overview of the technique and review the latest applications in the field of cultural heritage.
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