NSRRC Activity Report 2023

Facts and Figures 113 From 1994 to 2023, the total number of beamlines opened to general users has increased from 3 to 38, comprising 21 TLS beamlines, 2 Taiwanese beamlines at SPring-8, and 15 newly opened TPS beamlines (see Beamline Status on page 117). During the year 2023, the User Administration & Promotion Office (UAO) issued 1,119 new user cards and provided services to 2,826 users from 156 affiliations (including 228 users from 87 foreign institutions) to use the above-mentioned 38 NSRRC beamlines. Altogether, 672 proposals led by 424 principal investigators were performed, involving 1,725 experimental runs and 13,321 user runs (visits). The overall NSRRC beamtime (including SP 44XU*) allocated to users, excluding beamline maintenance and training courses, was 5,521.25 shifts for all TPS beamlines combined, 10,951 for all TLS beamlines combined, and 969 for SPring-8 beamlines combined (including 15 shifts for SP 44XU). Each shift consists of 8 consecutive hours. In the year 2023, the UAO processed 201 subventions for SPring-8 (including 2 for SP 44XU). Another 63 subventions, funded by the Ministry of Science and Technology, were given to Taiwan neutron users to conduct experiments at neutron facilities worldwide. In total, 121 master’s theses and 15 doctoral dissertations utilizing NSRRC facilities were completed in 2023 (see Appendix). Operational data on beamlines/experimental stations and users are summarized in the following figures. * Note: Institute for Protein Research, Osaka University (IPR-Osaka) and the NSRRC have established a long-term collaboration in protein structural research, aiming to combine the expertise of both sides and to access each other’s facilities when needs arise. IPR-Osaka offers beamtime of its contract beamline SP 44XU at SPring-8 to Taiwanese users selected by the NSRRC to study large macromolecular assemblies and membrane proteins. 716 829 1,012 1,384 1,623 1,683 1,994 2,230 2,266 2,201 2,036 2,120 2,199 2,360 2,305 2,328 2,432 2,254 2,197 2,579 2,826 0 500 1000 1500 2000 2500 3000 Year Number of Users 2003 2005 2007 2009 2011 2013 2015 2017 2019 2021 2023 Number of users 2003–2023 User Statistics