Progress Report on Proton Dosimetry at NPL

A Strategic Research project was performed at NPL with the aim of investigating issues and potential improvements for light-ion dosimetry. The objectives of the project were: a literature survey, testing a number of dosimeters in the proton therapy beam of Clatterbridge Centre of Oncology (CCO), measurement of dose distributions, measurement and calculation of detector perturbations, explore the use of Monte Carlo simulations for the calculation of particle spectra, stopping power ratios and detector perturbation factors. All the work performed in this project, including a literature review of around two hundred papers on proton and light-ion reference dosimetry, is prepared for publication as an internal NPL report [1].