PEMODELAN KOLIMATOR UNTUK BORON NEUTRON CAPTURE THERAPY DENGAN SUMBER COMPACT NEUTRON GENERATOR MENGGUNAKAN MONTE CARLO N-PARTICLE VERSI 5

SITI HALIJAH LAARA , NIM. 09620012 (2014) PEMODELAN KOLIMATOR UNTUK BORON NEUTRON CAPTURE THERAPY DENGAN SUMBER COMPACT NEUTRON GENERATOR MENGGUNAKAN MONTE CARLO N-PARTICLE VERSI 5. Skripsi thesis, UNIVERSITAS ISLAM NEGERI SUNAN KALIJAGA.

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Abstract

BNCT is a cancer therapy that utilizes 10B and neutrons thermal. The success of BNCT therapy is highly dependent on the accuracy of neutrons delivery to cancer cells. That requires a collimator of neutrons that can lead right to the cancer cells to minimize the interaction of neutrons with the patient's normal cells. The neutron beam that are used in BNCT has to fulfill five minimum requirements which was recommended by the IAEA. It is necessary for optimization of collimator. Optimization conducted by simulating the collimator components with software MCNP5. Source of neutrons used in the simulation is CNG with energy 2.5 MeV (DD reaction). Simulation of optimization is conducted by varying material type and thickness of the constituent collimator collimator. Collimator of design optimization produce the epithermal neutron flux 2.08x108 n/cm2s, fast of neutrons dose ratio of the epithermal flux 336x10-13 Gy.cm2/n, ratio of the flux of gamma dose the epithermal 16.4x10-13 Gy.cm2/n, ratio the thermal flux and the epithermal at 1.43, and ratio of current and the epithermal flux is 0.19. Based on the optimization results concluded that : in this research has not produced parameters that can fulfill the IAEA recommendations as a minimum requirement in the BNCT beam. Therefore, the collimator of design optimization can be done in future studies.

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