Measurement of the three-dimensional distribution of radiation dose in grid therapy
- 10 September 2004
- journal article
- research article
- Published by IOP Publishing in Physics in Medicine & Biology
- Vol. 49 (19), N317-N323
- https://doi.org/10.1088/0031-9155/49/19/n01
Abstract
A single large dose of megavoltage x-rays delivered through a grid is currently being utilized by some centres for palliative radiotherapy treatments of large tumours. In this note, we investigate the dosimetry of grid therapy using two-dimensional film dosimetry and three-dimensional gel dosimetry. It is shown that the radiation dose is attenuated more rapidly with depth in a grid field than an open field, and that even shielded regions receive approximately 25% of the dose to the unshielded areas.This publication has 13 references indexed in Scilit:
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