Title :
Cylindrical silicon-on-insulator microdosimeter: Charge collection characteristics
Author :
Ziebell, A.L. ; Lim, W.H. ; Reinhard, M.I. ; Cornelius, I. ; Prokopovich, D.A. ; Siegele, R. ; Dzurak, A.S. ; Rosenfeld, A.B.
Abstract :
This study introduces and investigates a new silicon-on-insulator (SOI) microdosimeter with an array of 3D cylindrical micron sized sensitive volumes (SVs) for use in calculating the radiobiological effectiveness (RBE) of a radiation field via the microdosimetry approach. An ion beam induced charge (IBIC) study of individual SVs has revealed a well defined truly micron sized SV with a near 100 % charge collection efficiency (CCE). By eliminating cross talk between individual SVs, the device has the capability of studying the track structure of high energy, heavy ions like those found in a deep space environment.
Keywords :
biological effects of ionising radiation; dosimetry; radiation therapy; silicon-on-insulator; charge collection efficiency; cylindrical Silicon-on-Insulator microdosimeter; cylindrical micron sized sensitive volumes; deep space environment; ion beam induced charge; radiation therapy; radiobiological effectiveness; track structure; Biomedical applications of radiation; Capacitance; Fabrication; Ion beams; Nuclear and plasma sciences; P-i-n diodes; Semiconductor diodes; Silicon on insulator technology; Testing; Voltage; IBIC; Microdosimeter; Microdosimetry; Radiobiological Effectiveness; SOI;
Conference_Titel :
Nuclear Science Symposium Conference Record, 2007. NSS '07. IEEE
Print_ISBN :
978-1-4244-0922-8
Electronic_ISBN :
1095-7863
DOI :
10.1109/NSSMIC.2007.4436607
