Abstract

A new approach to microdosimetry based on a silicon on insulator p-n junction array has been offered for use in radiation oncology and a prototype has been tested in fast neutron therapy, boron neutron capture therapy and proton therapy. The advantages of the new microdosemeter are its small size, simple conversion of measured amplitude spectra to tissue-equivalent microdosimetric spectra and the possibility of incorporating the sensitive element and readout electronics on the same chip. Such a microdosemeter could also be attractive for equivalent dose monitoring in personal radiation protection dosimetry.

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