Reverse-biased silicon p-n junction arrays have been proposed as microdosimetry detectors. The tissue equivalence of such detectors in boron neutron capture therapy (BNCT) is discussed. A comparison of the range-energy relationships of H, He, C, and Li ions in tissue (ICRU-muscle) and silicon is given. A simple geometrical scaling (approximately 0.63) of linear dimensions is required to convert...

A brief overview is provided of the history of the development of internal dose methods for use in nuclear medicine. Basic methods of internal dosimetry and the systems that have been developed for use in nuclear medicine are described. The development of the MIRD system and the International Radiopharmaceutical Dosimetry Symposium series is outlined. The evolution of models and tools for calcu...

To the Editor, Microdosimetry is perhaps the most useful tool for intercomparing the different types of radiation that are used in radiotherapy; the relative effects of different radiations are controlled by the different initial energy deposition patterns in cellular targets—the subject matter of microdosimetry. It is therefore appropriate that many authors have measured microdosimetric spectr...

Experimental microdosimetry measures the energy deposited in a microscopic sensitive volume ( SV ) by single ionizing particles traversing or passing by. The fundamental advantage of experimental over computational approach is that first allows to determine distributions deposition when information on and nature charged at point interest incomplete fragmentary. This almost always case radiation...