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Published: 2024-04-25
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DOI: https://doi.org/10.53747/nst.v13i2.417
Issue
Vol. 13 No. 2 (2023)
Section
Articles
How to Cite
MIZOI, Y., MIHARA, M., KIMURA, Y., Sugisaki, T., Takayama, G., Tanaka, M., Nishimura, D., Otani, Y., Fukutome, M., Taguchi, R., Sitan, C., Ishitani, S. ., Miyahara, R., Watanabe, K., Fukuda, M., Izumikawa, T., Noguchi, N., Takatsu, K., Takahashi, H., Yano, A. ., Seki, H., Ohtsubo, T. ., Matsuta, K., Kitagawa, A., & Sato, S. (2024). Application of β-NMR to spectroscopy and imaging. Nuclear Science and Technology, 13(2), 29-36. https://doi.org/10.53747/nst.v13i2.417

Application of β-NMR to spectroscopy and imaging

Yutaka Mizoi1, Mototsugu Mihara2, Yoko Kimura2, Takato Sugisaki2, Gen Takayama, Masaomi Tanaka, Daiki Nishimura, Yurika Otani, Miki Fukutome, Ryo Taguchi, Chen Sitan, Soshi Ishitani, Rina Miyahara, Kaoru Watanabe, Mitsunori Fukuda, Takuji Izumikawa, Norihide Noguchi, Kazuya Takatsu, Hiroyuki Takahashi, Asahi Yano, Hibiki Seki, Takashi Ohtsubo, Kensaku Matsuta, Atsushi Kitagawa, Shinji Sato
1 Osaka Electro-Communication University
2 Osaka University

Main Article Content

Abstract

Nuclear magnetic resonance (NMR) using β-decay radioisotopes, known as “β-NMR,” is used for research in nuclear physics. Recently, nuclear magnetic moments of β-decay radioisotopes have been precisely measured by β-NMR. Therefore, β-decay radioisotopes can be used for NMR spectroscopy in material sciences. Nuclei, whose spin is zero, such as 12C and 16O, cannot be used in conventional NMR. However, nonzero-spin radioactive isotopes of carbon and oxygen can be used in β-NMR. This advantage is powerful for investigating organic materials that cannot be investigated using conventional NMR. A technique is being developed to extend β-NMR for imaging use in magnetic resonance imaging (MRI). In this study, the imaging function was realized by installing β-ray tracking detectors in a β-NMR device. Nuclear-spin-polarized radioisotopes were injected into a sample, and β-rays were emitted from their positions. Consequently, one could track back β-ray source positions on the sample. These detectors were installed into a dipole magnet to observe the magnetic resonances. A radio frequency coil was installed surrounding the sample. By combining information about the β-ray tracks and magnetic resonances, it was possible to obtain NMR spectra and images. This method is called “β-MRI.” The system was evaluated, and its performances were estimated.

Article Details

Author Biographies

Yutaka Mizoi, Osaka Electro-Communication University

18-8 Hatsucho Neyagawa, Osaka, 572-8530, Japan

Mototsugu Mihara, Osaka University

1-1 Machikaneyama Toyonaka, Osaka, 560-0043, Japan

Yoko Kimura, Osaka University

1-1 Machikaneyama Toyonaka, Osaka, 560-0043, Japan

Takato Sugisaki, Osaka University

1-1 Machikaneyama Toyonaka, Osaka, 560-0043, Japan

Keywords

Nuclear magnetic resonance (NMR), Magnetic resonance imaging (MRI), β-decay radioisotope, β-ray detector

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