Calculation of neutron flux distributions in BNCT using removal-diffusion theory

摘要: Boron neutron capture therapy (BNCT) is under investigation as a treatment modality for brain tumors. Successful routine use of BNCT will require knowledge the radiation dose distribution in patient`s head prior to treatment. This allow optimization fit needs individual patients. Determination begins with calculation flux head. Most efforts date have relied on Monte Carlo or discrete ordinates techniques calculate this distribution. Use removal-diffusion theory has advantage relatively short computer time complete calculation. Previous work by our group shown good agreement between distributions calculated using and methods parallel incident neutrons rectangular parallelepiped water phantom. compares homogeneous ellipsoidal phantom that models human