1. The Joint Project Team of JAERI and KEK, “The Joint Project for High-Intensity Proton Accelerators”, JAERI-Tech 99-056, Japan Atomic Energy Research Institute (JAERI), (1999).
2. K. Niita, S. Meigo, H. Takada, et al. “High energy particle transport code NMTC/JAM”, JAERI-Data/Code 2001-007, Japan Atomic Energy Research Institute (JAERI), (2001).
3. N.V. Mokhov, “The MARS Code System User’s Guide”, Version 13(95), Reference Manual, Fermilab-FN-628, (1995).
4. L.S. Waters (Ed.), “MCNPTM User’s Manual”, TPO-E83-G-UG-X-00001, Los Alamos National Lab. (1999).
5. T. Tsukiyama, R. Tayama, H. Handa, et al. “SHINE-III: Simple Code for Skyshine Dose Calculation up to 3 GeV Neutrons”, J. Nucl. Sci. Technol., Supplement 1, p.640 (2000).