title: Tissue equivalence correction for silicon microdosimetry detectors in boron neutron capture therapy.
abstract: 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 microdosimetric energy deposition measurements performed in silicon to equivalent deposition in tissue. The Monte Carlo technique is used to examine energy deposition for two simple geometrical cases applicable to BNCT.
authors.affiliation: Radiation Physics Group, University of Wollongong, NSW, Australia. peter_bradley@uow.edu.au
authors.forename: P D
authors.initials: PD
authors.lastname: Bradley
authors.forename: A B
authors.initials: AB
authors.lastname: Rosenfeld
mesh_terms: D016754:Boron Neutron Capture Therapy / Q000295:instrumentation* / Q000379:methods; D006801:Humans; D009010:Monte Carlo Method; D009132:Muscles; D019047:Phantoms, Imaging; D011879:Radiotherapy Dosage; D011880:Radiotherapy Planning, Computer-Assisted / Q000379:methods*; D012825:Silicon
chemical_list: D012825:Silicon