PERANCANGAN REFLEKTOR DAN KOLIMATOR DENGAN SUMBER NEUTRON CALIFORNIUM-252 UNTUK FASILITAS BORON NEUTRON; CAPTURE THERAPY (BNCT) MENGGUNAKAN METODE SIMULASI MONTE CARLO N PARTICLE 5 (MCNP 5) NEUTRON REFLECTOR AND COLLIMATOR DESIGN WITH CALIFORNIUM-252 NEUTRON SOURCE FOR BORON NEUTRON CAPTURE THERAPY (BNCT) FACILITY USING MONTE CARLO N PARTICLE 5 (MCNP5) SIMULATION METHOD

Muhammad Fakhrurreza, Kusminarti

2014 | Disertasi | PROGRAM STUDI ILMU FISIKA

Cancer is the leading cause of death worldwide by number of 12.4 million deaths in 2008. This prompted the need for research that results in cancer treatment method with the lowest possible cost. Potential treatment method to be developed is BNCT. BNCT requires a neutron source with a certain criteria, one of which is a Cf- 252 which can emit neutrons spontaneously by 2.31434 x 1012 neutron/s.gram. Neutrons produced by Cf-252 have not met the conditions set by the International Atomic Energy Agency (IAEA), so required reflectors and collimators with a particular design. Reflector serves as a rectifier neutron beam. Collimator is used to obtain the optimum epithermal neutron flux with small impurity radiation (thermal neutrons, fast neutrons and gamma). A simulation design performed using MCNP5 program. The design simulation results were optimal reflector obtained using BeO material 15 cm thick, a moderator using sulfur material with 300 cone angle slope and 5 cm radius. The calculation results obtained neutron output has

Kata Kunci : BNCT, MCNP5, reflector design, collimator design, Californium-252