This team is in charge of maintenance and improvement of detectors which are used at BigRIPS separator and its succeeding beam lines for beam diagnosis and particle identification of RI beams. We are also engaged in R&D of new detectors that can be used for higher-intensity RI beams. We are also advancing the development of cryogenic targets for use in experiments.

Research Subject

Maintenance and improvement of the beam-line detectors which are used at BigRIPS separator and its succeeding beam lines
Development of new beam-line detectors with radiation hardness and tolerance for higher counting rates
Development of cryogenic liquid targets

List of Selected Publications

Kurata-Nishimura, M. et al.:
"Directed and elliptic flow observations in Sn+Sn collisions with radioactive beams at 270 MeV/u”
Phys. Lett. B 871, 139970 (2025).
Sato, Y., Fukuda, N., Takeda, H., Kameda, D., Suzuki, H., Shimizu, Y., Ahn, D.S., Murai, D., Inabe, N., Shimaoka, T., Tsubota, M., Kaneko, J.H., Chayahara, A., Umezawa, H., Shikata, S., Kumagai, H., Murakami, H., Sato, H., Yoshida, K., and Kubo, T.:
"Status of beam line detectors for the BigRIPS fragment separator at RIKEN RI Beam Factory: issues on high rates and resolution"
JPS Con. Proc. 6, 030124 (2015).
Kumagai, H., Ohnishi, T., Fukuda, N., Takeda, H., Kameda, D., Inabe, N., Yoshida, K., and Kubo, T.:
"Development of Parallel Plate Avalanche Counter (PPAC) for BigRIPS fragment separator"
Nucl. Instrum. and Meth. B 317, 717-727 (2014).
Sato, H., Kubo, T., Yano. Y., Kusaka, K., Ohnishi, J., Yoneda, K., Shimizu, Y., Motobayashi, T., Otsu, H., Isobe, T., Kobayashi, T., Sekiguchi, K., Nakamura, T., Kondo, Y., Togano, Y., Murakami, T., Tsuchihashi, T., Orikasa, T., and Maeta, K.:
"Superconducting Dipole Magnet for SAMURAI Spectrometer"
IEEE Trans. Appl. Supercond. 23, 4500308 (2013).