Research Summary

Selected Publications

• 1. Niwase, T., Wada, M., Schury, P., Rosenbusch, M., Kaji, D., Morimoto, K., Kimura, Xian, W.
  "Decay-correlated mass measurement technique via multi-reflection time-of-flight mass spectrograph with the α/β TOF detector"
  Nuclear Instruments and Methods in Physics Research, B 541, 197–199 (2023)
• 2. Kuramoto, K., Morimoto, K., Kaji, D., Brionnet, P., Takeyama, M., Kosugi, K., and Tokanai, F.
  "Segmented silicon-based solid-state detector with thin dead layer for superheavy element research"
  Japanese Journal of Applied Physics, Volume 62, 046001 (2023)
• 3. Brionnet, P., Grzywacz, R., Kaji, D., King, T., Niwase, Morimoto, K., Rykaczewski, K., Sakai, H.
  "Development of digital electronics for the search of SHE nuclei using GARIS-II/III at RIKEN"
  Nuclear Inst. and Methods in Physics Research, A 1049, 168068 (2023)
• 4. Sakai, H., Haba, H., Morimoto, K., Sakamoto, N.
  "Facility upgrade for superheavy-element research at RIKEN"
  Eur. Phys. J. A (2022) 58:238
• 5. Tanaka, M., Brionnet, P., Du, M., Ezold, J., Felker, K., Gall, B. J. P., Go, S., Grzywacz, R. K., Haba, H., Hagino, K., Hogle, S., Ishizawa, S., Kaji, D., Kimura, S., King, T. T., Komori, Y., Lemon, R. K., Leonard, M. G., Morimoto, K., Morita, K., Nagae, D., Naito, N., Niwase, T., Rasco, B. C., Roberto, J. B., Rykaczewski, K. P., Sakaguchi, S., Sakai, H., Shigekawa, Y., Stracener, D. W., VanCleve, S., Wang, Y., Washiyama, K., and Yokokita, T.
  "Probing Optimal Reaction Energy for Synthesis of Element 119 from ⁵¹V+²⁴⁸Cm Reaction with Quasielastic Barrier Distribution Measurement"
  J. Phys. Soc. Jpn. 91, 084201 (2022)
• 6. Niwase, T., Wada, M., Schury, P., Brionnet, P., Chen, S. D., Hashimoto, T., Haba, H., Hirayama, Y., Hou, D. S., Iimura, S., Ishiyama, H., Ishizawa, S., Ito, Y., Kaji, D., Kimura, S., Liu, J., Miyatake, H., Moon, J. Y., Morimoto, K., Morita, K., Nagae, D., Rosenbusch, M., Takamine, A., Tanaka, T., Watanabe, Y. X., Wollnik, H., Xian, W., and Yan, S. X.
  "α-decay-correlated mass measurement of ^206,207g,mRa using an α-TOF detector equipped multireflection time-of-flight mass spectrograph system"
  Phys. Rev. C 104, 044617 (2021)
• 7. Schury, P., Niwase, T., Wada, M., Brionnet, P., Chen, S., Hashimoto, T., Haba, H., Hirayama, Y., Hou, D. S., Iimura, S., Ishiyama, H., Ishizawa, S., Ito, Y., Kaji, D., Kimura, S., Koura, H., Liu, J. J., Miyatake, H., Moon, J.-Y., Morimoto, K., Morita, K., Nagae, D., Rosenbusch, M., Takamine, A., Watanabe, Y. X., Wollnik, H., Xian, W., and Yan, S. X.
  "First high-precision direct determination of the atomic mass of a superheavy nuclide"
  Phys. Rev. C 104, L021304 (2021)
• 8. Haba, H., Fan, F., Kaji, D., Kasamatsu, Y., Kikunaga, H., Komori, Y., Kondo, N., Kudo, H., Morimoto, K., Morita, K., Murakami, M., Nishio, K., Omtvedt, J. P., Ooe, K., Qin, Z., Sato, D., Sato, N., Sato, T. K., Shigekawa, Y., Shinohara, A., Takeyama, M., Tanaka, T., Toyoshima, A., Tsukada, K., Wakabayashi, Y., Wang, Y., Wulff, S., Yamaki, S., Yano, S., Yasuda, Y., and Yokokita, T.
  "Production of ²⁶⁶Bh in the 248Cm(²³Na,5n)266Bh reaction and its decay properties"
  Phys. Rev. C 102, 024625 (2020)
• 9. Numakura, H., Morimoto, K., Kaji, D., Kosugi, K., Horikawa, C., Ishizawa, S., Takeyama, M., and Tokanai, F.
  "Evaluation of a back-illuminated solid state detector with thin dead layer for super heavy element research"
  Japanese Journal of Applied Physics, Volume 59 066004 (2020)
• 10. Ishizawa, S., Morimoto, K., Kaji, D., Tanaka, T., and Tokanai, F.
  "Improvement of the detection efficiency of a time-of-flight detector for superheavy element search"
  Nuclear Inst. and Methods in Physics Research, A 960 (2020) 163614

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