INVESTIGADORES
CARBONETTO SebastiÁn Horacio
artículos
Título:
Switched Bias Differential MOSFET Dosimeter
Autor/es:
GARCIA INZA, M.; CARBONETTO, S.; LIPOVETZKY, J.; CARRÁ, M.J.; SAMBUCO SALOMONE, L.; REDIN, E. G.; FAIGON, A.
Revista:
IEEE TRANSACTIONS ON NUCLEAR SCIENCE
Editorial:
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Referencias:
Lugar: New York; Año: 2014 vol. 61 p. 1407 - 1413
ISSN:
0018-9499
Resumen:
This paper presents a differential MOSFET sensor reading technique based on the bias controlled cycled measurement. The circuit was implemented, and tested with gamma radiation from a 60-cobalt source. Temperature rejection performance was assessed during the exposure in real-time measurements. The results show that in comparison with a single MOSFET dosimeter the thermal drift is 20 times smaller and the radiation sensitivity is approximately 10% higher. The switched biasing allows to extend the measurement range beyond MOSFET?s threshold voltage saturation.
