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2. 〈http://www.isis.rl.ac.uk/userTraining/ssai_shutters.htm〉.
3. K. Oikawa, et al., Engineering design of JSNS shutter system, to be shown in the same issue of this paper.
4. W. Higemoto, et al., J-PARC muon control system, to be shown in the same issue of this paper.