Chief Scientist Laboratories Nuclear Spectroscopy Laboratory
Chief Scientist: Hideki Ueno (D.Sc.)
Research Summary

Atomic nuclei are substances governed by the nuclear forces, and are thus separated from atoms or other matter in the higher hierarchy, governed by electromagnetic interactions. However, nuclei interacts each other with the external objectives through hyperfine interactions owing to the nuclear spin accompanied with electromagnetic properties. Utilizing the characteristic of this interaction, the research group investigates the properties of nuclei and develops methods to manipulate nuclear spin, through the response of external substances, or conversely investigates the properties of external substances using nuclei as microscopic probes. For this purpose, the group has been developing new experimental techniques based on various nuclear spectroscopic methods, aiming at extending such technologies to boundary research fields of nuclear physics such as fundamental physics and materials science.
Main Research Fields
- Mathematical & Physical Sciences
Related Research Fields
- Interdisciplinary Science & Engineering
Keywords
- Experimental Nuclear Physics
- Accelerator-Use Experiment
- Radioactive-Isotope Beam
- Radiation Measurement
- Nuclear Spin Orientation
Selected Publications
- 1.
Go, S., Tsuzuki, Y., Yoneda, H., Ichikawa, Y., Ikeda, T., Imai, N., Imamura, K., Niikura, M., Nishimura, D., Mizuno, R., Takeda, S., Ueno, H., Watanabe, S., Y. Saito, T., Shimoura, S., Sugawara, S., Takamine, A., Takahashi, T.:
"Demonstration of nuclear gamma-ray polarimetry based on a multi-layer CdTe Compton camera"
Sci. Rep. 14, 2573 (2024). - 2.
Oshima, Y., Ishii, Y., L. Pratt, F., Watanabe, I., Seo, H., Tsumuraya, T., Miyazaki, T., Kato, R.:
"Quasi-one-dimensional spin dynamics in a molecular spin liquid system"
Phys. Rev. Lett 133, 236702 (2024). - 3.
Kimura, S., Wada, M.,HHaba, ., Ishiyama, H., Ishizawa, S., Ito, Y., Niwase, T., Rosenbusch, M., Schury, P., Takamine, A.:
"Comprehensive mass measurement study of 252Cf fission fragments with MRTOF-MS and detailed study of masses of neutron-rich Ce isotopes"
Phys. Rev. C 110, 045810 (2024). - 4.
Xian, W., Chen, S., Nikas, S., Rosenbusch, M., Wada, M., Ishiyama, H., Hou, D., Iimura, S., Nishimura, S., Schury, P., Takamine, A., Yan, S., Browne, F., Doornenbal, P., Flavigny, F., Hirayama, Y., Ito, Y., Kimura, S., M. Kojima, T., Lee, J., Liu, J., Michimasa, H., Y. Moon, J., Naimi, S., Niwase, T., Sonoda, T., Suzuki, D., Watanabe, X. Y., Werner, V., Wimmer, K., and Wollnik, H.:
"Mass measurements of neutron-rich A ≈ 90 nuclei constrain element abundances"
Phys. Rev. C 109, 035804 (2024). - 5.
Oshima, Y. Takenobu, T., Pu, J. Ishiguro, K., Kato, R., Yamamoto, H. M., Kusamoto, T.:
"A memristive oscillator"
Adv. Phys. Res. 3, 2300117 (2024). - 6.
Ishibashi, Y., Gladkov, A., Ichikawa, Y., Takamine, A., Nishibata, H., Sato, T., Yamazaki, H., Abe, T., M. Daugas, J., Egami, T., Fujita, T., Georgiev, G., Imamura, K., Kawaguchi, T., Kobayashi, W., Nakamura, Y., Ozawa, A., Sanjo, M., Shimizu, N., Tominaga, D., Tao, L. C., Asahi, K., Ueno, H.:
"Nuclear magnetic moment of the neutron-rich nucleus 21O"
Phys. Rev. C 107, 024306 (2023). - 7.
Iimura, S., Rosenbusch, M., Takamine, A., Tsunoda, Y., Wada, M., Chen, S., Hou, D., Xian, W., Ishiyama, H., Yan, S., Schury, P., Crawford, H., Doornenbal, P., Hirayama, Y., Ito, Y., Kimura, S., Koiwai, T., Kojima, T., Koura, H., Lee, J., Liu, J., Michimasa, S., Miyatake, H., Moon, J., Naimi, S., Nishimura, S., Niwase, T., Odahara, A., Otsuka, T., Paschalis, S., Petri, M., Shimizu, N., Sonoda, T., Suzuki, D., Watanabe, Y., Wimmer, K., Wollnik, H.:
"Study of the N = 32 and N = 34 shell gap for Ti and V by the first high-precision multireflection time-of-flight mass measurements at BigRIPS-SLOWRI"
Phys. Rev. Lett. 130, 012501 (2023). - 8.
Fujiyama, S., Maebashi, H., Tajima, N., Tsumuraya, T., Cui, H.-B., Ogata, M., Kato, R.:
"Large diamagnetism and electromagnetic duality in two-dimensional dirac electron system"
Phys. Rev. Lett. 128, 027201 (2022). - 9.
Boulay, F., Simpson, G. S., Ichikawa, Y., Kisyov, S., Bucurescu, D., Takamine, A., Ahn, D. S., Asahi, K., Baba, H., Balabanski, D. L., Egami, T., Fujita, T., Fukuda, N., Funayama, C., Furukawa, T., Georgiev, G., Gladkov, A., Hass, M., Imamura, K., Inabe, N., Ishibashi, Y., Kawaguchi, T., Kawamura, T., Kim, W., Kobayashi, Y., Kojima, S., Kusoglu, A., Lozeva, R., Momiyama, S., Mukul, I., Niikura, M., Nishibata, H., Nishizaka, T., Odahara, A., Ohtomo, Y., Ralet, D., Sato, T., Shimizu, Y., Sumikama, T., Suzuki, H., Takeda, H., Tao, L. C., Togano, Y., Tominaga, D., Ueno, H., Yamazaki, H., Yang, X. F., Daugas, J. M.:
"g-Factor of the 99Zr (7/2+) isomer: monopole evolution in shape coexisting region"
Phys. Rev. Lett. 124, 112501 (2020). - 10.
Ichikawa, Y., Nishibata, H., Tsunoda, Y., Takamine, A., Imamura, K., Fujita, T., Sato, T., Momiyama, S., Shimizu, Y., Ahn, D. S., Asahi, K., Baba, H., Balabanski, D. L., Boulay, Daugas, J.-M., Egami, T., Fukuda, N., Funayama, C., Furukawa, T., Georgiev, G., Gladkov, A., Inabe, N., Ishibashi, Y., Kawaguchi, T., Kawamura, T., Kobayashi, Y., Kojima, S., Kusoglu, Mukul, A. I., Niikura, M., Nishizaka, T., Odahara, A., Ohtomo, Y., Otsuka, T., Ralet, D., Simpson, G. S., Sumikama, T., Suzuki, H., Takeda, H., Tao, L. C., Togano, Y., Tominaga, D., Ueno, H., Yamazaki, H., Yang, X. F.:
"Interplay between nuclear shell evolution and shape deformation revealed by the magnetic moment of 75Cu"
Nat. Phys. 15, 321 (2019).
Annual research report
Lab Members
Principal investigator
- Hideki Ueno
- Chief Scientist
Core members
- Shigeki Fujiyama
- Senior Research Scientist
- Yugo Oshima
- Senior Research Scientist
- Shintaro Go
- Research Scientist
- Marco Rosenbusch
- Research Scientist
Contact Information
315 Nishina RIBF Bldg.
2-1 Hirosawa, Wako, Saitama 351-0198, Japan
Email: ueno@riken.jp