1. J-PARC Center, Japan Atomic Energy Agency, Tokai, Ibaraki, Japan. E-mails: seiko.kawamura@j-parc.jp, takahashi.ryuta@jaea.go.jp, kambara.wataru@jaea.go.jp, aoyama.kazuhiro@jaea.go.jp, mwatanab@post.j-parc.jp, takayuki.oku@j-parc.jp
2. Nippon Advanced Technology Co., Ltd., Tokai, Ibaraki, Japan. E-mails: yamauchi.yasuhiro@jaea.go.jp, nakamura.masatoshi@jaea.go.jp
3. Comprehensive Research Organization for Science and Society (CROSS), Tokai, Ibaraki, Japan. E-mails: m_ishikado@cross.or.jp, k_ohuchi@cross.or.jp, h_kira@cross.or.jp, y_sakaguchi@cross.or.jp