Tissue Equivalence Correction in Silicon Microdosimetry for Protons Characteristic of the LEO Space Environment

Author

Guatelli, S. ; Reinhard, M.I. ; Mascialino, B. ; Prokopovich, D.A. ; Dzurak, A.S. ; Zaider, M. ; Rosenfeld, A.B.

Author_Institution

Australian Nucl. Sci. & Technol. Organ. (ANSTO), Lucas Heights, NSW

Volume

55

Issue

6

fYear

2008

Firstpage

3407

Lastpage

3413

Abstract

The tissue equivalence of solid state silicon detectors in proton radiation fields was determined to improve the radiation protection applications of silicon detectors in aviation and space missions. The study was performed by means of Geant4 simulations. Results are presented showing that a simple c( ~ 0.56) of linear dimensions is adequate to convert experimentally obtained microdosimetric energy deposition spectra in silicon to equivalent microdosimetric energy deposition spectra in water.

Keywords

Monte Carlo methods; aerospace biophysics; biological effects of ionising particles; biological tissues; cellular effects of radiation; dosimeters; dosimetry; phantoms; proton detection; proton effects; silicon radiation detectors; silicon-on-insulator; space research; Geant4 simulation; LEO space environment; aviation; microdosimetric energy deposition spectra; proton radiation field; radiation protection; silicon-on-insulator microdosimetry; solid state silicon detector; space mission; tissue equivalence correction; Australia; Dosimetry; Low earth orbit satellites; Physics; Protection; Protons; Radiation detectors; Silicon; Space missions; Space technology; Geant4; microdosimetry; silicon detector; tissue equivalence;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/TNS.2008.2006894

Filename

4723798