Optical fibre radiation dosimetry for low dose applications

An investigation in to the feasibility of using an ultra violet sensitive phosphor coated PMMA optical fibres to aid development of an phosphor coated optical fibre sensor to measure low energy ionising radiation for personal dosimetry applications is presented. The paper provides an overview of the development of a phosphor coated sensor technique and how it can be used to determine variances in light from an Ultra Violet light source. This method can then be used to develop sensors for ionising radiation monitoring. As it is not feasible to use gamma sources for demonstration, the UV detector is used as part of a sensor system prototype for emergency first responders, where ionising radiation monitoring is important in the event of an incident involving radioactive sources.