Megavoltage x-ray skin dose variation with an angle using grid carbon fibre couch tops.

@article{Butson2007MegavoltageXS,
  title={Megavoltage x-ray skin dose variation with an angle using grid carbon fibre couch tops.},
  author={Martin J. Butson and Tsang Tommy Cheung and Peter K. N. Yu},
  journal={Physics in medicine and biology},
  year={2007},
  volume={52 20},
  pages={N485-92}
}
It is well known that a skin dose from high-energy x-ray radiation varies with the angle of beam incidence or the presence of a radiotherapy linear accelerator couch top material. This note investigates changes produced to the skin dose from a Varian carbon fibre grid couch top at differing angles of incidence for 6 MV x-rays as is often the case clinically. Results have shown that the skin dose can easily be measured using an EBT Gafchromic film whereby the delivered skin dose can be… CONTINUE READING

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