Microdosimetric measurements of a clinical proton beam with micrometer-sized solid-state detector

Authors

Sarah Anderson, Mayo Clinic
Keith Furutani, Mayo Clinic
Linh T. Tran, University of WollongongFollow
Lachlan Chartier, University of WollongongFollow
Marco Petasecca, University of WollongongFollow
Michael L. F Lerch, University of WollongongFollow
Dale A. Prokopovich, University of WollongongFollow
Mark I. Reinhard, ANSTO
Vladimir Perevertaylo, SPA BIT
Anatoly B. Rosenfeld, University of WollongongFollow
Michael Herman, Mayo Clinic
Chris Beltran, Mayo Clinic

RIS ID

116913

Publication Details

Anderson, S. E., Furutani, K. M., Tran, L. T., Chartier, L., Petasecca, M., Lerch, M., Prokopovich, D. A., Reinhard, M., Perevertaylo, V., Rosenfeld, A. B., Herman, M. G. & Beltran, C. (2017). Microdosimetric measurements of a clinical proton beam with micrometer-sized solid-state detector. Medical Physics, 44 (11), 6029-6037.

Abstract

Microdosimetry is a vital tool for assessing the microscopic patterns of energy deposition by radiation, which ultimately govern biological effect. Solid-state, silicon-on-insulator microdosimeters offer an approach for making microdosimetric measurements with high spatial resolution (on the order of tens of micrometers). These high-resolution, solid-state microdosimeters may therefore play a useful role in characterizing proton radiotherapy fields, particularly for making highly resolved measurements within the Bragg peak region. In this work, we obtain microdosimetric measurements with a solid-state microdosimeter (MicroPlus probe) in a clinical, spot-scanning proton beam of small spot size.