SAMURAI Team

In collaboration with research groups in and outside RIKEN, the team designs, develops and constructs the SAMURAI spectrometer and relevant equipment that are and will be used for reaction experiments using RI beams at RI Beam Factory. The SAMURAI spectrometer consists of a large superconducting dipole magnet and a variety of detectors to measure charged particles and neutrons. After the commissioning experiment in March 2012, the team prepared and conducted, in collaboration with researchers in individual experimental groups, the first series of experiments with SAMURAI in May 2012. The team also provides basis for research activities by, for example, organizing collaboration workshops by researchers who are interested in studies or plan to perform experiments with the SAMURAI spectrometer.

Research Subjects

• Operation, maintenance and improvement of a large superconducting dipole magnet that is the main component of the SAMURAI spectrometer
• Design, development and construction of various detectors that are used for nuclear reaction experiments using the SAMURAI spectrometer
• Preparation for planning experiments using SAMURAI spectrometer
• Maintenance and improvement of the SAMURAI beam line
• Formation of a collaboration platform called "SAMURAI collaboration"

Publications

1. K. Yoneda, T. Isobe, N. Iwasa, T. Kobayashi, Y. Kondo, T. Kubo, K. Kusaka, T. Motobayashi, T. Murakami, T. Nakamura, J. Ohnishi, H. Otsu, H. Sakurai, H. Sato, Y. Satou, K. Sekiguchi, Y. Shimizu, Y. Togano, and K. Yoshida:
   "Current status of SAMURAI"
   RIKEN Accel. Prog. Rep., 45, i (2012).
2. H. Sato, T. Kubo, Y. Yano, K. Kusaka, J. Ohnishi, K. Yoneda, Y. Shimizu, T. Motobayashi, H. Otsu, T. Isobe, T. Kobayashi, K. Sekiguchi, T. Nakamura, Y. Kondo, Y. Togano, T. Murakami, T. Tsuchihashi, T. Orikasa, and K. Maeta:
   "Superconducting Dipole Magnet for SAMURAI Spectrometer"
   IEEE Trans. Appl. Supercond. 23, 4500308 (2013).
3. M. Kurokawa, Y. Soki, N. Iwasa, M. Masuyama, T. Motobayashi, H. Murakami, A. Taketani, M. Tanaka, Y. Togano, and K. Yoneda:
   "Front-end Electronics for SAMURAI Si Detectors"
   RIKEN Accel. Prog. Rep., 43, 182 (2010).
4. T. Kubo:
   "In-flight RI beam separator BigRIPS at RIKEN and elsewhere in Japan"
   Nucl. Instr. Meth., B204, 97 (2003).
5. Y. Shimizu, T. Kobayashi, T. Kubo, N. Chiga, T. Isobe, T. Kawabata, Y. Kondo, K. Kusaka, Y. Matsuda, T. Motobayashi, T. Murakami, T. Nakamura, J. Ohnishi, T. Ohnishi, H. Okuno, H. Otsu, H. Sakurai, H. Sato, Y. Satou, K. Sekiguchi, Y. Togano, and K. Yoneda:
   "SAMURI Project at RIBF"
   Journal of Physics, Conference Series, 312, 052022 (2011)