A large area pixelated silicon array detector named \MP987" has been developed for in-vivo dosimetry. The detector was developed to overcome the non-water equivalent response of EPID (Electronic Portal Imaging Device) dosimetry systems, due to the shortfalls of the extensive corrections required. The detector, readout system and software have all been custom designed and operate independently from the linac. The MP987 array is secured directly above the EPID, to be used in combination with the 6 MV imaging system.
During the course of this thesis many aspects of in-vivo dosimetry were looked at, including: electrical and dosimetric characteristics of silicon diodes, feasibility of a dual detector system, angular dependence of silicon and synthetic diamond detectors and the suitability of different detector readout systems for multichannel arrays in external beam radiotherapy.
In the final chapter of this thesis dosimetry characterisation measurements of percentage depth dose (PDD)
Extracted from the core of sandalwood trees (santalum album tree), sandalwood oil has been used for many centuries by several cultures throughout the world for perfume, soaps, incense and candles.