@misc{oai:repo.qst.go.jp:00080543,
 author = {Pham, T.T. and Yanagihara, R. and Ideguchi, E. and Orlandi, R. and Nishio, K. and Makii, H. and Asai, M. and Hirose, K. and Tsukada, K. and Toyoshima, A. and Sato, T.K. and Ito, Y. and Aoi, N. and Yamamoto, Y. and Kumar Raju, M. and Hoang, T.H. and Kohda, A. and Go, S. and Tanaka, M. and Wakabayashi, R. and Shizuma, Toshiyuki and Shizuma, Toshiyuki},
 month = {Sep},
 note = {Californium 249 (Z=98, N=151) is a deformed nucleus in the N=152, Z=100 nuclear region. The energy gaps of nuclei in this region arise in the deformed single-particle spectrum. Some excited states in these nuclei are predicted to be built on the same orbits which become spherical in the long-lived Super-Heavy-Element region near N =184, Z = 114 [1,2] (the so-called “Island of Stability”). Studies of excited states in the N=152, Z=100 region, and specifically in this research of 249Cf, provide a connection to the study of shell structure in the Island of Stability.
The experiment has been performed at JAEA – Tokai Tandem Laboratory using 4 HPGe detectors and 4 LaBr3 scintillators for gamma detection and 2 S3-type [3] silicon detectors for particle detection. The silicon detectors were placed backward and forward to the target. 18O beam with energy 70 MeV and 58Ni beam with energy 245 MeV have been used for the experiment.
A Coulomb excitation with beam energy well below the Coulomb barrier of 249Cf was achieved for the first time. The gamma rays in coincidence with scattered particles give the  spectrum of gamma rays emitted from excited states of 249Cf and thus give the intensity of E2 transition. The intensity of E2 transitions, combined with the scattering angle of incoming particle, detector geometry, beam intensity, etc. were used as input for the GOSIA [4] code to deduce the B(E2) value to determine the deformation of 249Cf. The extracted data could help to complete the 249Cf level scheme., 日本物理学会2020年秋季大会},
 title = {Study of 249Cf by Coulomb Excitation Gamma-ray Spectroscopy},
 year = {2020}
}