1. Texas A&M University, The Center for Nuclear Security Science & Policy Initiatives, College Station, Texas 77843–3473
2. Japan Patent Office, Chiyoda-ku, Tokyo, 100–8915, Japan
3. Ministry of Education, Culture Sports, Science and Technology, Chiyoda-ku, Tokyo, 100-8959, Japan
4. Texas A&M University, Department of Nuclear Engineering, College Station, Texas 77843-3133