Abstract

A new developing reactor isn't fixed the structure and the materials of reactor components. To perform the shielding analysis for a reactor vessel by $R-\theta$ geometry, it takes much effort and time to modeling of source term according to the change of reactor components every time. Therefore, we developed the shielding analysis system for the reactor vessel by $R-{\theta}$ geometry, which wasn't affected by the reactor core geometry. By using the developed shielding analysis system, we performed the shielding analysis for the reactor vessel of an integral reactor which has the hexagonal geometry of nuclear fuel assemblies in reactor core. We compared the results obtained from the developed system with those obtained from MCNP analysis. Because the results of developed shielding analysis system were more conservative than those of MCNP calculation, it is useful for shielding analysis. As we had developed the new shielding analysis system for a reactor vessel by $R-{\theta}$ geometry, we reduced error of model for reactor core which was formerly designed by hand and saved the time and the effort to design source term model of reactor core.

Keywords

• Shielding Analysis;
• Reactor Vessel;
• $R-{\theta}$;
• integral reactor;
• HELIOS;
• MASTER;
• MCNP

• 차폐해석;
• 압력용기;
• 일체형원자로;

File

Download PDF

References

1. 'RSICC Computer Code Cbllection-DOORS32,' CCC-650, ORNL(1998)
2. 조진영, 'MASTER 3.0 USER'S MANUAL ,' KAERI/UM-8/2004, 한국원자력연구소(2004)
3. 'RSICC Computer Code Collection-MCNP4C2,' CCO701, ORNL(2001)
4. Teodosi Simeonov and Lars Moberg, 'Release notes-HELIOS System version 1.8,' SSP -03/221, Studsvik Scandpower(2003)
5. W.A. Rhoades, 'The GIP program for preparation of group-organized cross-section libraries ,' ORNL(1978)
6. 'Rsicc data library collection bugle-96,' DLC-185, ORNL(1996)
7. '핵자료 체제 구축 기반 연구-MCNP' CD-III & CD-IV, 핵자료평가랩, 한국원자력연구소(2002)