Title :
Characterization of a Novel Diamond-Based Microdosimeter Prototype for Radioprotection Applications in Space Environments
Author :
Davis, Jeremy A. ; Ganesan, Kumaravelu ; Alves, Andrew D C ; Guatelli, Susanna ; Petasecca, Marco ; Livingstone, Jayde ; Lerch, Michael L F ; Prokopovich, Dale A. ; Reinhard, Mark I. ; Siegele, Rainer N. ; Prawer, Steven ; Jamieson, David ; Kuncic, Zdenka
Author_Institution :
Centre for Med. Radiat. Phys., Univ. of Wollongong, Wollongong, NSW, Australia
Abstract :
This paper is dedicated to the characterization of a novel diamond microdosimeter prototype with 3D sensitive volumes produced by high energy boron implantation. Diamond has been chosen in order to further improve solid state based microdosimeter in terms of radiation hardness and tissue equivalency. IBIC measurements were undertaken to determine the charge collection efficiency map of the device. It was demonstrated that the proposed ion implantation technology allows for the formation of an array of well defined 3D SVs. A Geant4 application was developed to explain the effect of Al electrode thickness on observed anomaly in deposited energy. Specifics of the results and an update on the current status of the project is presented.
Keywords :
dosimeters; radiation protection; solid-state nuclear track detectors; 3D sensitive volumes; Al electrode thickness; Geant4 application; IBIC measurements; deposited energy; device charge collection efficiency map; high energy boron implantation; ion implantation technology; novel diamond-based microdosimeter prototype; radiation hardness; radioprotection applications; solid state based microdosimeter; space environments; tissue equivalency; Aluminum; Boron; Diamond-like carbon; Dosimetry; Electrodes; Simulation; Space technology; Diamond; microdosimetry; radiation protection; space radiation environment;
Journal_Title :
Nuclear Science, IEEE Transactions on
DOI :
10.1109/TNS.2012.2218131
