X-ray Computed Tomography (CT) is an invaluable diagnostic imaging tool in clinical practice. However in recent years due to the widespread availability and burgeoning use of Multi-Slice CT (MSCT) scanners, cumulative lifetime radiation dose has increasingly become an issue of public concern. Currently, no real-time radiation dosimeter exists in the diagnostic radiology clinic to directly verify patient skin doses. Moreover, existing CT dose measures such as the Computed Tomography Dose Index (CTDI) and Dose Length Product (DLP) as displayed on the MSCT scanner console do not directly relate to patient dose. The objective of this work is to investigate if the MOSkin dosimeter, based on real-time MOSFET technology, developed at the Centre for Medical Radiation Physics (CMRP) at the University of Wollongong, Australia, may be applied in clinical diagnostic x-ray CT photon beams as a potential clinical CT radiation dosimeter.