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Experimental Study of MOS Capacitors as Wireless Radiation Dose Sensors


Abstract The RADiation sensitive Field Effect Transistor (RADFET) has been conventionally used to measure radiation dose levels. These dose sensors are calibrated in such a way that a shift in threshold voltage, due to a build-up of oxide-trapped charge, can be used to estimate the radiation dose. In order to estimate the radiation dose level using RADFET, a wired readout circuit is necessary. Using the same principle of oxide-trapped charge build-up, but by monitoring the change in capacitance instead of threshold voltage, a wireless dose sensor can be developed. This RADiation sensitive CAPacitor (RADCAP) mounted on a resonant patch antenna can then become a wireless dose sensor. From the resonant frequency, the capacitance can be extracted which ... (more)
Created Date 2010
Contributor Srinivasan Gopalan, Madusudanan (Author) / Barnaby, Hugh (Advisor) / Holbert, Keith (Committee member) / Yu, Hongyu (Committee member) / Arizona State University (Publisher)
Subject Electrical Engineering / Dosimetry / RADCAP / RADFET / Radiation / Sensor / Wireless
Type Masters Thesis
Extent 75 pages
Language English
Copyright
Reuse Permissions All Rights Reserved
Note M.S. Electrical Engineering 2010
Collaborating Institutions Graduate College / ASU Library
Additional Formats MODS / OAI Dublin Core / RIS


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Description Dissertation/Thesis