Effects of filters and wedges on skin sparing and gamma/neutron dose ratios in neutron teletherapy.
The effects of skin sparing and the gamma/neutron dose ratios in the clinical situations presently in use at the TAMVEC neutron teletherapy facility are not appreciably affected by the presence of filters and/or wedges. It is also shown that if skin sparing is lost due to close proximity of a hydrogenous scattering source, it can be restored by the use of thin lead filters.
D005720:Gamma Rays; D009502:Neutrons; D011879:Radiotherapy Dosage; D011882:Radiotherapy, High-Energy / Q000295:instrumentation*; D012867:Skin / Q000528:radiation effects*