1. Department of Applied Quantum Physics and Nuclear Engineering, Kyushu University, Fukuoka, Japan
2. National Metrology Institute of Japan, National Institute of Advanced Industrial Science and Technology, Ibaraki, Japan
3. National Institute of Radiological Sciences (NIRS), National Institute for Quantum and Radiological Science and Technology (QST), Chiba, Japan
4. Institute of Engineering Innovation, School of Engineering, The University of Tokyo, Tokyo, Japan
5. Department of Radiological Technology, Faculty of Fukuoka Medical Technology, Teikyo University, Fukuoka, Japan