Radiation Protection Dosimetry Vol. 109 No. 3 © Oxford University Press 2004; all rights reserved
Shielding analysis of the Microtron MT-25 bunker using the MCNP-4C code and NCRP Report 51
Instituto Superior de Tecnologías y Ciencias Aplicadas (InSTEC), Ave. Salvador Allende y Luaces, Quinta de los Molinos, Habana 10600, A.P. 6163, InSTEC, La Habana, Cuba
* Corresponding author: ocasanova{at}fctn.isctn.edu.cu
Received February 2 2004, amended and accepted 6 April 2004
A cyclic electron accelerator Microtron MT-25 will be installed in Havana, Cuba. Electrons, neutrons and gamma radiation up to 25 MeV can be produced in the MT-25. A detailed shielding analysis for the bunker is carried out using two ways: the NCRP-51 Report and the Monte Carlo Method (MCNP-4C Code). The walls and ceiling thicknesses are estimated with dose constraints of 0.5 and 20 mSv y1, respectively, and an area occupancy factor of 1/16. Both results are compared and a preliminary bunker design is shown.