ABSTRACT

Individual monitoring, also known as personal monitoring, refers to the monitoring of doses received by people working with radiation. Occupational exposure may consist of either internal exposure or external exposure, or both, it is the total dose received by the individual that is of interest for regulatory compliance and for staff dose estimation. A personal monitoring film (PMF) is a photographic film which is a sheet of transparent plastic film base of polyester, about 100-200 µm thick, coated on one or both side(s) with a gelatin emulsion to about 5-10 or 20 µm thickness. Film processing is the film development process in a darkroom to convert the latent image on the film into a visible image. In film dosimetry, for fast neutron (0.5-15 MeV) monitoring, nuclear track emulsions are used. Many countries have replaced film dosimetry with Solid State Nuclear Track Detector (SSNTD)-based dosimetry because of their better characteristics compared to films.