1. National Metrology Institute of Japan, National Institute of Advanced Industrial Science and Technology, Ibaraki, Japan
2. High Energy Accelerator Research Organization, Ibaraki, Japan
3. Department of Applied Quantum Physics and Nuclear Engineering, Kyushu University, Fukuoka, Japan
4. Hiroshima University, Hiroshima, Japan
5. Shimizu Corporation, Tokyo, Japan
6. Institute for Integrated Radiation and Nuclear Science, Kyoto University, Osaka, Japan
7. CERN, Geneva, Switzerland